Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

31 files changed, 10814 insertions, 0 deletions

diff --git a/js/src/zydis/Zycore/API/Memory.c b/js/src/zydis/Zycore/API/Memory.c
new file mode 100644
index 0000000000..0ddfadb6f3
--- /dev/null
+++ b/js/src/zydis/Zycore/API/Memory.c
@@ -0,0 +1,132 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#include "zydis/Zycore/API/Memory.h"
+
+#ifndef ZYAN_NO_LIBC
+
+#if   defined(ZYAN_WINDOWS)
+
+#elif defined(ZYAN_POSIX)
+#   include <unistd.h>
+#else
+#   error "Unsupported platform detected"
+#endif
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* General                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanU32 ZyanMemoryGetSystemPageSize(void)
+{
+#if defined(ZYAN_WINDOWS)
+
+    SYSTEM_INFO system_info;
+    GetSystemInfo(&system_info);
+
+    return system_info.dwPageSize;
+
+#elif defined(ZYAN_POSIX)
+
+    return sysconf(_SC_PAGE_SIZE);
+
+#endif
+}
+
+ZyanU32 ZyanMemoryGetSystemAllocationGranularity(void)
+{
+#if defined(ZYAN_WINDOWS)
+
+    SYSTEM_INFO system_info;
+    GetSystemInfo(&system_info);
+
+    return system_info.dwAllocationGranularity;
+
+#elif defined(ZYAN_POSIX)
+
+    return sysconf(_SC_PAGE_SIZE);
+
+#endif
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Memory management                                                                              */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanMemoryVirtualProtect(void* address, ZyanUSize size, 
+    ZyanMemoryPageProtection protection)
+{
+#if defined(ZYAN_WINDOWS)
+
+    DWORD old;
+    if (!VirtualProtect(address, size, protection, &old))
+    {
+        return ZYAN_STATUS_BAD_SYSTEMCALL;
+    }
+
+#elif defined(ZYAN_POSIX)
+
+    if (mprotect(address, size, protection))
+    {
+        return ZYAN_STATUS_BAD_SYSTEMCALL;
+    }
+
+#endif
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanMemoryVirtualFree(void* address, ZyanUSize size)
+{
+#if defined(ZYAN_WINDOWS)
+
+    ZYAN_UNUSED(size);
+    if (!VirtualFree(address, 0, MEM_RELEASE))
+    {
+        return ZYAN_STATUS_BAD_SYSTEMCALL;
+    }
+
+#elif defined(ZYAN_POSIX)
+
+    if (munmap(address, size))
+    {
+        return ZYAN_STATUS_BAD_SYSTEMCALL;
+    }
+
+#endif
+
+    return ZYAN_STATUS_SUCCESS;    
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#endif /* ZYAN_NO_LIBC */
diff --git a/js/src/zydis/Zycore/API/Memory.h b/js/src/zydis/Zycore/API/Memory.h
new file mode 100644
index 0000000000..dec95ab9f7
--- /dev/null
+++ b/js/src/zydis/Zycore/API/Memory.h
@@ -0,0 +1,137 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * @brief
+ */
+
+#ifndef ZYCORE_API_MEMORY_H
+#define ZYCORE_API_MEMORY_H
+
+#include "zydis/Zycore/Defines.h"
+#include "zydis/Zycore/Status.h"
+#include "zydis/Zycore/Types.h"
+
+#ifndef ZYAN_NO_LIBC
+
+#if   defined(ZYAN_WINDOWS)
+#   include <windows.h>
+#elif defined(ZYAN_POSIX)
+#   include <sys/mman.h>
+#else
+#   error "Unsupported platform detected"
+#endif
+
+/* ============================================================================================== */
+/* Enums and types                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Defines the `ZyanMemoryPageProtection` enum.
+ */
+typedef enum ZyanMemoryPageProtection_
+{
+#if   defined(ZYAN_WINDOWS)
+
+    ZYAN_PAGE_READONLY          = PAGE_READONLY,
+    ZYAN_PAGE_READWRITE         = PAGE_READWRITE,
+    ZYAN_PAGE_EXECUTE           = PAGE_EXECUTE,
+    ZYAN_PAGE_EXECUTE_READ      = PAGE_EXECUTE_READ,
+    ZYAN_PAGE_EXECUTE_READWRITE = PAGE_EXECUTE_READWRITE
+
+#elif defined(ZYAN_POSIX)
+
+    ZYAN_PAGE_READONLY          = PROT_READ,
+    ZYAN_PAGE_READWRITE         = PROT_READ | PROT_WRITE,
+    ZYAN_PAGE_EXECUTE           = PROT_EXEC,
+    ZYAN_PAGE_EXECUTE_READ      = PROT_EXEC | PROT_READ,
+    ZYAN_PAGE_EXECUTE_READWRITE = PROT_EXEC | PROT_READ | PROT_WRITE
+
+#endif
+} ZyanMemoryPageProtection;
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* General                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns the system page size.
+ *
+ * @return  The system page size.
+ */
+ZYCORE_EXPORT ZyanU32 ZyanMemoryGetSystemPageSize(void);
+
+/**
+ * Returns the system allocation granularity.
+ *
+ * The system allocation granularity specifies the minimum amount of bytes which can be allocated
+ * at a specific address by a single call of `ZyanMemoryVirtualAlloc`.
+ *
+ * This value is typically 64KiB on Windows systems and equal to the page size on most POSIX
+ * platforms.
+ *
+ * @return  The system allocation granularity.
+ */
+ZYCORE_EXPORT ZyanU32 ZyanMemoryGetSystemAllocationGranularity(void);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Memory management                                                                              */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Changes the memory protection value of one or more pages.
+ *
+ * @param   address     The start address aligned to a page boundary.
+ * @param   size        The size.
+ * @param   protection  The new page protection value.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanMemoryVirtualProtect(void* address, ZyanUSize size,
+    ZyanMemoryPageProtection protection);
+
+/**
+ * Releases one or more memory pages starting at the given address.
+ *
+ * @param   address The start address aligned to a page boundary.
+ * @param   size    The size.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanMemoryVirtualFree(void* address, ZyanUSize size);
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#endif /* ZYAN_NO_LIBC */
+
+#endif /* ZYCORE_API_MEMORY_H */
diff --git a/js/src/zydis/Zycore/API/Process.c b/js/src/zydis/Zycore/API/Process.c
new file mode 100644
index 0000000000..94524125d5
--- /dev/null
+++ b/js/src/zydis/Zycore/API/Process.c
@@ -0,0 +1,77 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#include "zydis/Zycore/Defines.h"
+#include "zydis/Zycore/API/Process.h"
+
+#ifndef ZYAN_NO_LIBC
+
+#if defined(ZYAN_WINDOWS)
+#if   defined(ZYAN_KERNEL)
+#      include <wdm.h>
+#else
+#      include <windows.h>
+#endif
+#elif defined(ZYAN_POSIX)
+#   include <sys/mman.h>
+#else
+#   error "Unsupported platform detected"
+#endif
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* General                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanProcessFlushInstructionCache(void* address, ZyanUSize size)
+{
+#if   defined(ZYAN_WINDOWS)
+
+    if (!FlushInstructionCache(GetCurrentProcess(), address, size))
+    {
+        return ZYAN_STATUS_BAD_SYSTEMCALL;
+    }
+
+#elif defined(ZYAN_POSIX)
+
+    if (msync(address, size, MS_SYNC | MS_INVALIDATE))
+    {
+        return ZYAN_STATUS_BAD_SYSTEMCALL;
+    }
+
+#endif
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#endif /* ZYAN_NO_LIBC */
diff --git a/js/src/zydis/Zycore/API/Process.h b/js/src/zydis/Zycore/API/Process.h
new file mode 100644
index 0000000000..d5d0f7716c
--- /dev/null
+++ b/js/src/zydis/Zycore/API/Process.h
@@ -0,0 +1,70 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * @brief
+ */
+
+#ifndef ZYCORE_API_PROCESS_H
+#define ZYCORE_API_PROCESS_H
+
+#include "zydis/Zycore/Status.h"
+#include "zydis/Zycore/Types.h"
+
+#ifndef ZYAN_NO_LIBC
+
+/* ============================================================================================== */
+/* Enums and types                                                                                */
+/* ============================================================================================== */
+
+
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* General                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * @brief   Flushes the process instruction cache.
+ *
+ * @param   address The address.
+ * @param   size    The size.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanProcessFlushInstructionCache(void* address, ZyanUSize size);
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#endif /* ZYAN_NO_LIBC */
+
+#endif /* ZYCORE_API_PROCESS_H */
diff --git a/js/src/zydis/Zycore/Allocator.c b/js/src/zydis/Zycore/Allocator.c
new file mode 100644
index 0000000000..a4d0feab7a
--- /dev/null
+++ b/js/src/zydis/Zycore/Allocator.c
@@ -0,0 +1,134 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#include "zydis/Zycore/Allocator.h"
+#include "zydis/Zycore/LibC.h"
+
+/* ============================================================================================== */
+/* Internal functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Default allocator                                                                              */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+static ZyanStatus ZyanAllocatorDefaultAllocate(ZyanAllocator* allocator, void** p,
+    ZyanUSize element_size, ZyanUSize n)
+{
+    ZYAN_ASSERT(allocator);
+    ZYAN_ASSERT(p);
+    ZYAN_ASSERT(element_size);
+    ZYAN_ASSERT(n);
+
+    ZYAN_UNUSED(allocator);
+
+    *p = ZYAN_MALLOC(element_size * n);
+    if (!*p)
+    {
+        return ZYAN_STATUS_NOT_ENOUGH_MEMORY;
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+static ZyanStatus ZyanAllocatorDefaultReallocate(ZyanAllocator* allocator, void** p,
+    ZyanUSize element_size, ZyanUSize n)
+{
+    ZYAN_ASSERT(allocator);
+    ZYAN_ASSERT(p);
+    ZYAN_ASSERT(element_size);
+    ZYAN_ASSERT(n);
+
+    ZYAN_UNUSED(allocator);
+
+    void* const x = ZYAN_REALLOC(*p, element_size * n);
+    if (!x)
+    {
+        return ZYAN_STATUS_NOT_ENOUGH_MEMORY;
+    }
+    *p = x;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+static ZyanStatus ZyanAllocatorDefaultDeallocate(ZyanAllocator* allocator, void* p,
+    ZyanUSize element_size, ZyanUSize n)
+{
+    ZYAN_ASSERT(allocator);
+    ZYAN_ASSERT(p);
+    ZYAN_ASSERT(element_size);
+    ZYAN_ASSERT(n);
+
+    ZYAN_UNUSED(allocator);
+    ZYAN_UNUSED(element_size);
+    ZYAN_UNUSED(n);
+
+    ZYAN_FREE(p);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+#endif // ZYAN_NO_LIBC
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+ZyanStatus ZyanAllocatorInit(ZyanAllocator* allocator, ZyanAllocatorAllocate allocate,
+    ZyanAllocatorAllocate reallocate, ZyanAllocatorDeallocate deallocate)
+{
+    if (!allocator || !allocate || !reallocate || !deallocate)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    allocator->allocate   = allocate;
+    allocator->reallocate = reallocate;
+    allocator->deallocate = deallocate;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+#ifndef ZYAN_NO_LIBC
+
+ZyanAllocator* ZyanAllocatorDefault(void)
+{
+    static ZyanAllocator allocator =
+    {
+        &ZyanAllocatorDefaultAllocate,
+        &ZyanAllocatorDefaultReallocate,
+        &ZyanAllocatorDefaultDeallocate
+    };
+    return &allocator;
+}
+
+#endif
+
+/* ============================================================================================== */
diff --git a/js/src/zydis/Zycore/Allocator.h b/js/src/zydis/Zycore/Allocator.h
new file mode 100644
index 0000000000..606d6e4e34
--- /dev/null
+++ b/js/src/zydis/Zycore/Allocator.h
@@ -0,0 +1,142 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * @brief
+ */
+
+#ifndef ZYCORE_ALLOCATOR_H
+#define ZYCORE_ALLOCATOR_H
+
+#include "zydis/Zycore/Status.h"
+#include "zydis/Zycore/Types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ============================================================================================== */
+/* Enums and types                                                                                */
+/* ============================================================================================== */
+
+struct ZyanAllocator_;
+
+/**
+ * Defines the `ZyanAllocatorAllocate` function prototype.
+ *
+ * @param   allocator       A pointer to the `ZyanAllocator` instance.
+ * @param   p               Receives a pointer to the first memory block sufficient to hold an
+ *                          array of `n` elements with a size of `element_size`.
+ * @param   element_size    The size of a single element.
+ * @param   n               The number of elements to allocate storage for.
+ *
+ * @return  A zyan status code.
+ *
+ * This prototype is used for the `allocate()` and `reallocate()` functions.
+ *
+ * The result of the `reallocate()` function is undefined, if `p` does not point to a memory block
+ * previously obtained by `(re-)allocate()`.
+ */
+typedef ZyanStatus (*ZyanAllocatorAllocate)(struct ZyanAllocator_* allocator, void** p,
+    ZyanUSize element_size, ZyanUSize n);
+
+/**
+ * Defines the `ZyanAllocatorDeallocate` function prototype.
+ *
+ * @param   allocator       A pointer to the `ZyanAllocator` instance.
+ * @param   p               The pointer obtained from `(re-)allocate()`.
+ * @param   element_size    The size of a single element.
+ * @param   n               The number of elements earlier passed to `(re-)allocate()`.
+ *
+  * @return  A zyan status code.
+ */
+typedef ZyanStatus (*ZyanAllocatorDeallocate)(struct ZyanAllocator_* allocator, void* p,
+    ZyanUSize element_size, ZyanUSize n);
+
+/**
+ * Defines the `ZyanAllocator` struct.
+ *
+ * This is the base class for all custom allocator implementations.
+ *
+ * All fields in this struct should be considered as "private". Any changes may lead to unexpected
+ * behavior.
+ */
+typedef struct ZyanAllocator_
+{
+    /**
+     * The allocate function.
+     */
+    ZyanAllocatorAllocate allocate;
+    /**
+     * The reallocate function.
+     */
+    ZyanAllocatorAllocate reallocate;
+    /**
+     * The deallocate function.
+     */
+    ZyanAllocatorDeallocate deallocate;
+} ZyanAllocator;
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/**
+ * Initializes the given `ZyanAllocator` instance.
+ *
+ * @param   allocator   A pointer to the `ZyanAllocator` instance.
+ * @param   allocate    The allocate function.
+ * @param   reallocate  The reallocate function.
+ * @param   deallocate  The deallocate function.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanAllocatorInit(ZyanAllocator* allocator, ZyanAllocatorAllocate allocate,
+    ZyanAllocatorAllocate reallocate, ZyanAllocatorDeallocate deallocate);
+
+#ifndef ZYAN_NO_LIBC
+
+/**
+ * Returns the default `ZyanAllocator` instance.
+ *
+ * @return  A pointer to the default `ZyanAllocator` instance.
+ *
+ * The default allocator uses the default memory manager to allocate memory on the heap.
+ *
+ * You should in no case modify the returned allocator instance to avoid unexpected behavior.
+ */
+ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanAllocator* ZyanAllocatorDefault(void);
+
+#endif // ZYAN_NO_LIBC
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_ALLOCATOR_H */
diff --git a/js/src/zydis/Zycore/ArgParse.c b/js/src/zydis/Zycore/ArgParse.c
new file mode 100644
index 0000000000..fe38545aed
--- /dev/null
+++ b/js/src/zydis/Zycore/ArgParse.c
@@ -0,0 +1,279 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Joel Hoener
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#include "zydis/Zycore/ArgParse.h"
+#include "zydis/Zycore/LibC.h"
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+#ifndef ZYAN_NO_LIBC
+
+ZyanStatus ZyanArgParse(const ZyanArgParseConfig *cfg, ZyanVector* parsed,
+    const char** error_token)
+{
+    return ZyanArgParseEx(cfg, parsed, error_token, ZyanAllocatorDefault());
+}
+
+#endif
+
+ZyanStatus ZyanArgParseEx(const ZyanArgParseConfig *cfg, ZyanVector* parsed,
+    const char** error_token, ZyanAllocator* allocator)
+{
+#   define ZYAN_ERR_TOK(tok) if (error_token) { *error_token = tok; }
+
+    ZYAN_ASSERT(cfg);
+    ZYAN_ASSERT(parsed);
+
+    // TODO: Once we have a decent hash map impl, refactor this to use it. The majority of for
+    //       loops through the argument list could be avoided.
+
+    if (cfg->min_unnamed_args > cfg->max_unnamed_args)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Check argument syntax.
+    for (const ZyanArgParseDefinition* def = cfg->args; def && def->name; ++def)
+    {
+        // TODO: Duplicate check
+
+        if (!def->name)
+        {
+            return ZYAN_STATUS_INVALID_ARGUMENT;
+        }
+
+        ZyanUSize arg_len = ZYAN_STRLEN(def->name);
+        if (arg_len < 2 || def->name[0] != '-')
+        {
+            return ZYAN_STATUS_INVALID_ARGUMENT;
+        }
+
+        // Single dash arguments only accept a single char name.
+        if (def->name[1] != '-' && arg_len != 2)
+        {
+            return ZYAN_STATUS_INVALID_ARGUMENT;
+        }
+    }
+
+    // Initialize output vector.
+    ZYAN_CHECK(ZyanVectorInitEx(parsed, sizeof(ZyanArgParseArg), cfg->argc, ZYAN_NULL, allocator,
+        ZYAN_VECTOR_DEFAULT_GROWTH_FACTOR, ZYAN_VECTOR_DEFAULT_SHRINK_THRESHOLD));
+
+    ZyanStatus err;
+    ZyanBool accept_dash_args = ZYAN_TRUE;
+    ZyanUSize num_unnamed_args = 0;
+    for (ZyanUSize i = 1; i < cfg->argc; ++i)
+    {
+        const char* cur_arg = cfg->argv[i];
+        ZyanUSize arg_len = ZYAN_STRLEN(cfg->argv[i]);
+
+        // Double-dash argument?
+        if (accept_dash_args && arg_len >= 2 && ZYAN_MEMCMP(cur_arg, "--", 2) == 0)
+        {
+            // GNU style end of argument parsing.
+            if (arg_len == 2)
+            {
+                accept_dash_args = ZYAN_FALSE;
+            }
+            // Regular double-dash argument.
+            else
+            {
+                // Allocate parsed argument struct.
+                ZyanArgParseArg* parsed_arg;
+                ZYAN_CHECK(ZyanVectorEmplace(parsed, (void**)&parsed_arg, ZYAN_NULL));
+                ZYAN_MEMSET(parsed_arg, 0, sizeof(*parsed_arg));
+
+                // Find corresponding argument definition.
+                for (const ZyanArgParseDefinition* def = cfg->args; def && def->name; ++def)
+                {
+                    if (ZYAN_STRCMP(def->name, cur_arg) == 0)
+                    {
+                        parsed_arg->def = def;
+                        break;
+                    }
+                }
+
+                // Search exhausted & argument not found. RIP.
+                if (!parsed_arg->def)
+                {
+                    err = ZYAN_STATUS_ARG_NOT_UNDERSTOOD;
+                    ZYAN_ERR_TOK(cur_arg);
+                    goto failure;
+                }
+
+                // Does the argument expect a value? If yes, consume next token.
+                if (!parsed_arg->def->boolean)
+                {
+                    if (i == cfg->argc - 1)
+                    {
+                        err = ZYAN_STATUS_ARG_MISSES_VALUE;
+                        ZYAN_ERR_TOK(cur_arg);
+                        goto failure;
+                    }
+                    parsed_arg->has_value = ZYAN_TRUE;
+                    ZYAN_CHECK(ZyanStringViewInsideBuffer(&parsed_arg->value, cfg->argv[++i]));
+                }
+            }
+
+            // Continue parsing at next token.
+            continue;
+        }
+
+        // Single-dash argument?
+        // TODO: How to deal with just dashes? Current code treats it as unnamed arg.
+        if (accept_dash_args && arg_len > 1 && cur_arg[0] == '-')
+        {
+            // Iterate argument token chars until there are either no more chars left
+            // or we encounter a non-boolean argument, in which case we consume the
+            // remaining chars as its value.
+            for (const char* read_ptr = cur_arg + 1; *read_ptr; ++read_ptr)
+            {
+                // Allocate parsed argument struct.
+                ZyanArgParseArg* parsed_arg;
+                ZYAN_CHECK(ZyanVectorEmplace(parsed, (void**)&parsed_arg, ZYAN_NULL));
+                ZYAN_MEMSET(parsed_arg, 0, sizeof(*parsed_arg));
+
+                // Find corresponding argument definition.
+                for (const ZyanArgParseDefinition* def = cfg->args; def && def->name; ++def)
+                {
+                    if (ZYAN_STRLEN(def->name) == 2 &&
+                        def->name[0] == '-' &&
+                        def->name[1] == *read_ptr)
+                    {
+                        parsed_arg->def = def;
+                        break;
+                    }
+                }
+
+                // Search exhausted, no match found?
+                if (!parsed_arg->def)
+                {
+                    err = ZYAN_STATUS_ARG_NOT_UNDERSTOOD;
+                    ZYAN_ERR_TOK(cur_arg);
+                    goto failure;
+                }
+
+                // Requires value?
+                if (!parsed_arg->def->boolean)
+                {
+                    // If there are chars left, consume them (e.g. `-n1000`).
+                    if (read_ptr[1])
+                    {
+                        parsed_arg->has_value = ZYAN_TRUE;
+                        ZYAN_CHECK(ZyanStringViewInsideBuffer(&parsed_arg->value, read_ptr + 1));
+                    }
+                    // If not, consume next token (e.g. `-n 1000`).
+                    else
+                    {
+                        if (i == cfg->argc - 1)
+                        {
+                            err = ZYAN_STATUS_ARG_MISSES_VALUE;
+                            ZYAN_ERR_TOK(cur_arg)
+                            goto failure;
+                        }
+
+                        parsed_arg->has_value = ZYAN_TRUE;
+                        ZYAN_CHECK(ZyanStringViewInsideBuffer(&parsed_arg->value, cfg->argv[++i]));
+                    }
+
+                    // Either way, continue with next argument.
+                    goto continue_main_loop;
+                }
+            }
+        }
+
+        // Still here? We're looking at an unnamed argument.
+        ++num_unnamed_args;
+        if (num_unnamed_args > cfg->max_unnamed_args)
+        {
+            err = ZYAN_STATUS_TOO_MANY_ARGS;
+            ZYAN_ERR_TOK(cur_arg);
+            goto failure;
+        }
+
+        // Allocate parsed argument struct.
+        ZyanArgParseArg* parsed_arg;
+        ZYAN_CHECK(ZyanVectorEmplace(parsed, (void**)&parsed_arg, ZYAN_NULL));
+        ZYAN_MEMSET(parsed_arg, 0, sizeof(*parsed_arg));
+        parsed_arg->has_value = ZYAN_TRUE;
+        ZYAN_CHECK(ZyanStringViewInsideBuffer(&parsed_arg->value, cur_arg));
+
+    continue_main_loop:;
+    }
+
+    // All tokens processed. Do we have enough unnamed arguments?
+    if (num_unnamed_args < cfg->min_unnamed_args)
+    {
+        err = ZYAN_STATUS_TOO_FEW_ARGS;
+        // No sensible error token for this error type.
+        goto failure;
+    }
+
+    // Check whether all required arguments are present.
+    ZyanUSize num_parsed_args;
+    ZYAN_CHECK(ZyanVectorGetSize(parsed, &num_parsed_args));
+    for (const ZyanArgParseDefinition* def = cfg->args; def && def->name; ++def)
+    {
+        if (!def->required) continue;
+
+        ZyanBool arg_found = ZYAN_FALSE;
+        for (ZyanUSize i = 0; i < num_parsed_args; ++i)
+        {
+            const ZyanArgParseArg* arg = ZYAN_NULL;
+            ZYAN_CHECK(ZyanVectorGetPointer(parsed, i, (const void**)&arg));
+
+            // Skip unnamed args.
+            if (!arg->def) continue;
+
+            if (arg->def == def)
+            {
+                arg_found = ZYAN_TRUE;
+                break;
+            }
+        }
+
+        if (!arg_found)
+        {
+            err = ZYAN_STATUS_REQUIRED_ARG_MISSING;
+            ZYAN_ERR_TOK(def->name);
+            goto failure;
+        }
+    }
+
+    // Yay!
+    ZYAN_ERR_TOK(ZYAN_NULL);
+    return ZYAN_STATUS_SUCCESS;
+
+failure:
+    ZYAN_CHECK(ZyanVectorDestroy(parsed));
+    return err;
+
+#   undef ZYAN_ERR_TOK
+}
+
+/* ============================================================================================== */
diff --git a/js/src/zydis/Zycore/ArgParse.h b/js/src/zydis/Zycore/ArgParse.h
new file mode 100644
index 0000000000..8d78301bb0
--- /dev/null
+++ b/js/src/zydis/Zycore/ArgParse.h
@@ -0,0 +1,173 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Joel Hoener
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Implements command-line argument parsing.
+ */
+
+#ifndef ZYCORE_ARGPARSE_H
+#define ZYCORE_ARGPARSE_H
+
+#include "zydis/Zycore/Types.h"
+#include "zydis/Zycore/Status.h"
+#include "zydis/Zycore/Vector.h"
+#include "zydis/Zycore/String.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ============================================================================================== */
+/* Structs and other types                                                                        */
+/* ============================================================================================== */
+
+/**
+ * Definition of a single argument.
+ */
+typedef struct ZyanArgParseDefinition_
+{
+    /**
+     * The argument name, e.g. `--help`.
+     *
+     * Must start with either one or two dashes. Single dash arguments must consist of a single
+     * character, (e.g. `-n`), double-dash arguments can be of arbitrary length.
+     */
+    const char* name;
+    /**
+     * Whether the argument is boolean or expects a value.
+     */
+    ZyanBool boolean;
+    /**
+     * Whether this argument is required (error if missing).
+     */
+    ZyanBool required;
+} ZyanArgParseDefinition;
+
+/**
+ * Configuration for argument parsing.
+ */
+typedef struct ZyanArgParseConfig_
+{
+    /**
+     * `argv` argument passed to `main` by LibC.
+     */
+    const char** argv;
+    /**
+     * `argc` argument passed to `main` by LibC.
+     */
+    ZyanUSize argc;
+    /**
+     * Minimum # of accepted unnamed / anonymous arguments.
+     */
+    ZyanUSize min_unnamed_args;
+    /**
+     * Maximum # of accepted unnamed / anonymous arguments.
+     */
+    ZyanUSize max_unnamed_args;
+    /**
+     * Argument definition array, or `ZYAN_NULL`.
+     *
+     * Expects a pointer to an array of `ZyanArgParseDefinition` instances. The array is
+     * terminated by setting the `.name` field of the last element to `ZYAN_NULL`. If no named
+     * arguments should be parsed, you can also set this to `ZYAN_NULL`.
+     */
+    ZyanArgParseDefinition* args;
+} ZyanArgParseConfig;
+
+/**
+ * Information about a parsed argument.
+ */
+typedef struct ZyanArgParseArg_
+{
+    /**
+     * Corresponding argument definition, or `ZYAN_NULL` for unnamed args.
+     *
+     * This pointer is borrowed from the `cfg` pointer passed to `ZyanArgParse`.
+     */
+    const ZyanArgParseDefinition* def;
+    /**
+     * Whether the argument has a value (is non-boolean).
+     */
+    ZyanBool has_value;
+    /**
+     * If `has_value == true`, then the argument value.
+     *
+     * This is a view into the `argv` string array passed to `ZyanArgParse` via the `cfg` argument.
+     */
+    ZyanStringView value;
+} ZyanArgParseArg;
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+#ifndef ZYAN_NO_LIBC
+
+/**
+ * Parse arguments according to a `ZyanArgParseConfig` definition.
+ *
+ * @param  cfg          Argument parser config to use.
+ * @param  parsed       Receives the parsed output. Vector of `ZyanArgParseArg`. Ownership is
+ *                      transferred to the user. Input is expected to be uninitialized. On error,
+ *                      the vector remains uninitialized.
+ * @param  error_token  On error, if it makes sense, receives the argument fragment causing the
+ *                      error. Optional, may be `ZYAN_NULL`. The pointer borrows into the `cfg`
+ *                      struct and doesn't have to be freed by the user.
+ *
+ * @return A `ZyanStatus` status determining whether the parsing succeeded.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanArgParse(const ZyanArgParseConfig *cfg, ZyanVector* parsed,
+    const char** error_token);
+
+#endif
+
+/**
+ * Parse arguments according to a `ZyanArgParseConfig` definition.
+ *
+ * This version allows specification of a custom memory allocator and thus supports no-libc.
+ *
+ * @param  cfg          Argument parser config to use.
+ * @param  parsed       Receives the parsed output. Vector of `ZyanArgParseArg`. Ownership is
+ *                      transferred to the user. Input is expected to be uninitialized. On error,
+ *                      the vector remains uninitialized.
+ * @param  error_token  On error, if it makes sense, receives the argument fragment causing the
+ *                      error. Optional, may be `ZYAN_NULL`. The pointer borrows into the `cfg`
+ *                      struct and doesn't have to be freed by the user.
+ * @param   allocator   The `ZyanAllocator` to be used for allocating the output vector's data.
+ *
+ * @return A `ZyanStatus` status determining whether the parsing succeeded.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanArgParseEx(const ZyanArgParseConfig *cfg, ZyanVector* parsed,
+    const char** error_token, ZyanAllocator* allocator);
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_ARGPARSE_H */
diff --git a/js/src/zydis/Zycore/Atomic.h b/js/src/zydis/Zycore/Atomic.h
new file mode 100644
index 0000000000..6f5073087d
--- /dev/null
+++ b/js/src/zydis/Zycore/Atomic.h
@@ -0,0 +1,236 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zyan-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Cross compiler atomic intrinsics.
+ */
+
+#ifndef ZYCORE_ATOMIC_H
+#define ZYCORE_ATOMIC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "zydis/Zycore/Defines.h"
+#include "zydis/Zycore/Types.h"
+
+/* ============================================================================================== */
+/* Enums and Types                                                                                */
+/* ============================================================================================== */
+
+/*
+ * Wraps a 32-bit value to provide atomic access.
+ */
+typedef struct ZyanAtomic32_
+{
+    ZyanU32 volatile value;
+} ZyanAtomic32;
+
+/*
+ * Wraps a 64-bit value to provide atomic access.
+ */
+typedef struct ZyanAtomic64_
+{
+    ZyanU64 volatile value;
+} ZyanAtomic64;
+
+/*
+ * Wraps a pointer-sized value to provide atomic access.
+ */
+typedef struct ZyanAtomicPointer_
+{
+    ZyanVoidPointer volatile value;
+} ZyanAtomicPointer;
+
+/* ============================================================================================== */
+/* Macros                                                                                         */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Pointer sized                                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * @copydoc ZyanAtomicCompareExchange
+ */
+#define ZYAN_ATOMIC_COMPARE_EXCHANGE(destination, comparand, value) \
+    ZyanAtomicCompareExchange((ZyanAtomicPointer*)&(destination), (comparand), (value))
+
+/**
+ * @copydoc ZyanAtomicIncrement
+ */
+#define ZYAN_ATOMIC_INCREMENT(destination) \
+    ZyanAtomicIncrement((ZyanAtomicPointer*)&(destination));
+
+/**
+ * @copydoc ZyanAtomicDecrement
+ */
+#define ZYAN_ATOMIC_DECREMENT(destination) \
+    ZyanAtomicDecrement((ZyanAtomicPointer*)&(destination));
+
+/* ---------------------------------------------------------------------------------------------- */
+/* 32-bit                                                                                         */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * @copydoc ZyanAtomicCompareExchange
+ */
+#define ZYAN_ATOMIC_COMPARE_EXCHANGE32(destination, comparand, value) \
+    ZyanAtomicCompareExchange32((ZyanAtomic32*)&(destination), (comparand), (value))
+
+/**
+ * @copydoc ZyanAtomicIncrement
+ */
+#define ZYAN_ATOMIC_INCREMENT32(destination) \
+    ZyanAtomicIncrement32((ZyanAtomic32*)&(destination));
+
+/**
+ * @copydoc ZyanAtomicDecrement
+ */
+#define ZYAN_ATOMIC_DECREMENT32(destination) \
+    ZyanAtomicDecrement32((ZyanAtomic32*)&(destination));
+
+/* ---------------------------------------------------------------------------------------------- */
+/* 64-bit                                                                                         */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * @copydoc ZyanAtomicCompareExchange
+ */
+#define ZYAN_ATOMIC_COMPARE_EXCHANGE64(destination, comparand, value) \
+    ZyanAtomicCompareExchange64((ZyanAtomic64*)&(destination), (comparand), (value))
+
+/**
+ * @copydoc ZyanAtomicIncrement
+ */
+#define ZYAN_ATOMIC_INCREMENT64(destination) \
+    ZyanAtomicIncrement64((ZyanAtomic64*)&(destination));
+
+/**
+ * @copydoc ZyanAtomicDecrement
+ */
+#define ZYAN_ATOMIC_DECREMENT64(destination) \
+    ZyanAtomicDecrement64((ZyanAtomic64*)&(destination));
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Functions                                                                                      */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Pointer sized                                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Compares two values for equality and, if they are equal, replaces the first value.
+ *
+ * @param   destination A pointer to the destination value.
+ * @param   comparand   The value to compare with.
+ * @param   value       The replacement value.
+ *
+ * @return  The original value.
+ */
+static ZyanUPointer ZyanAtomicCompareExchange(ZyanAtomicPointer* destination,
+    ZyanUPointer comparand, ZyanUPointer value);
+
+/**
+ * Increments the given value and stores the result, as an atomic operation.
+ *
+ * @param   destination A pointer to the destination value.
+ *
+ * @return  The incremented value.
+*/
+static ZyanUPointer ZyanAtomicIncrement(ZyanAtomicPointer* destination);
+
+/**
+ * Decrements the given value and stores the result, as an atomic operation.
+ *
+ * @param   destination A pointer to the destination value.
+ *
+ * @return  The decremented value.
+*/
+static ZyanUPointer ZyanAtomicDecrement(ZyanAtomicPointer* destination);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* 32-bit                                                                                         */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * @copydoc ZyanAtomicCompareExchange
+ */
+static ZyanU32 ZyanAtomicCompareExchange32(ZyanAtomic32* destination,
+    ZyanU32 comparand, ZyanU32 value);
+
+/**
+ * @copydoc ZyanAtomicIncrement
+ */
+static ZyanU32 ZyanAtomicIncrement32(ZyanAtomic32* destination);
+
+/**
+ * @copydoc ZyanAtomicDecrement
+ */
+static ZyanU32 ZyanAtomicDecrement32(ZyanAtomic32* destination);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* 64-bit                                                                                         */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * @copydoc ZyanAtomicCompareExchange
+ */
+static ZyanU64 ZyanAtomicCompareExchange64(ZyanAtomic64* destination,
+    ZyanU64 comparand, ZyanU64 value);
+
+/**
+ * @copydoc ZyanAtomicIncrement
+ */
+static ZyanU64 ZyanAtomicIncrement64(ZyanAtomic64* destination);
+
+/**
+ * @copydoc ZyanAtomicDecrement
+ */
+static ZyanU64 ZyanAtomicDecrement64(ZyanAtomic64* destination);
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#if defined(ZYAN_CLANG) || defined(ZYAN_GCC) || defined(ZYAN_ICC)
+#   include "zydis/Zycore/Internal/AtomicGNU.h"
+#elif defined(ZYAN_MSVC)
+#   include "zydis/Zycore/Internal/AtomicMSVC.h"
+#else
+#   error "Unsupported compiler detected"
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_ATOMIC_H */
diff --git a/js/src/zydis/Zycore/Bitset.c b/js/src/zydis/Zycore/Bitset.c
new file mode 100644
index 0000000000..527ea37739
--- /dev/null
+++ b/js/src/zydis/Zycore/Bitset.c
@@ -0,0 +1,670 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#include "zydis/Zycore/Bitset.h"
+#include "zydis/Zycore/LibC.h"
+
+/* ============================================================================================== */
+/* Internal constants                                                                             */
+/* ============================================================================================== */
+
+#define ZYAN_BITSET_GROWTH_FACTOR    2
+#define ZYAN_BITSET_SHRINK_THRESHOLD 2
+
+/* ============================================================================================== */
+/* Internal macros                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Computes the smallest integer value not less than `x`.
+ *
+ * @param   x   The value.
+ *
+ * @return  The smallest integer value not less than `x`.
+ */
+#define ZYAN_BITSET_CEIL(x) \
+    (((x) == ((ZyanU32)(x))) ? (ZyanU32)(x) : ((ZyanU32)(x)) + 1)
+
+/**
+ * Converts bits to bytes.
+ *
+ * @param   x   The value in bits.
+ *
+ * @return  The amount of bytes needed to fit `x` bits.
+ */
+#define ZYAN_BITSET_BITS_TO_BYTES(x) \
+    ZYAN_BITSET_CEIL((x) / 8)
+
+/**
+ * Returns the offset of the given bit.
+ *
+ * @param   index   The bit index.
+ *
+ * @return  The offset of the given bit.
+ */
+#define ZYAN_BITSET_BIT_OFFSET(index) \
+    (7 - ((index) % 8))
+
+/* ============================================================================================== */
+/* Internal functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Helper functions                                                                               */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Initializes the given `vector` with `count` "zero"-bytes.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   count   The number of bytes.
+ *
+ * @return  A zyan status code.
+ */
+static ZyanStatus ZyanBitsetInitVectorElements(ZyanVector* vector, ZyanUSize count)
+{
+    ZYAN_ASSERT(vector);
+
+    static const ZyanU8 zero = 0;
+    for (ZyanUSize i = 0; i < count; ++i)
+    {
+        ZYAN_CHECK(ZyanVectorPushBack(vector, &zero));
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Byte operations                                                                                */
+/* ---------------------------------------------------------------------------------------------- */
+
+static ZyanStatus ZyanBitsetOperationAND(ZyanU8* b1, const ZyanU8* b2)
+{
+    *b1 &= *b2;
+    return ZYAN_STATUS_SUCCESS;
+}
+
+static ZyanStatus ZyanBitsetOperationOR (ZyanU8* b1, const ZyanU8* b2)
+{
+    *b1 |= *b2;
+    return ZYAN_STATUS_SUCCESS;
+}
+
+static ZyanStatus ZyanBitsetOperationXOR(ZyanU8* b1, const ZyanU8* b2)
+{
+    *b1 ^= *b2;
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Constructor and destructor                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+ZyanStatus ZyanBitsetInit(ZyanBitset* bitset, ZyanUSize count)
+{
+    return ZyanBitsetInitEx(bitset, count, ZyanAllocatorDefault(), ZYAN_BITSET_GROWTH_FACTOR,
+        ZYAN_BITSET_SHRINK_THRESHOLD);
+}
+
+#endif // ZYAN_NO_LIBC
+
+ZyanStatus ZyanBitsetInitEx(ZyanBitset* bitset, ZyanUSize count, ZyanAllocator* allocator,
+    ZyanU8 growth_factor, ZyanU8 shrink_threshold)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    const ZyanU32 bytes = ZYAN_BITSET_BITS_TO_BYTES(count);
+
+    bitset->size = count;
+    ZYAN_CHECK(ZyanVectorInitEx(&bitset->bits, sizeof(ZyanU8), bytes, ZYAN_NULL, allocator,
+        growth_factor, shrink_threshold));
+    ZYAN_CHECK(ZyanBitsetInitVectorElements(&bitset->bits, bytes));
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanBitsetInitBuffer(ZyanBitset* bitset, ZyanUSize count, void* buffer,
+    ZyanUSize capacity)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    const ZyanU32 bytes = ZYAN_BITSET_BITS_TO_BYTES(count);
+    if (capacity < bytes)
+    {
+        return ZYAN_STATUS_INSUFFICIENT_BUFFER_SIZE;
+    }
+
+    bitset->size = count;
+    ZYAN_CHECK(ZyanVectorInitCustomBuffer(&bitset->bits, sizeof(ZyanU8), buffer, capacity,
+        ZYAN_NULL));
+    ZYAN_CHECK(ZyanBitsetInitVectorElements(&bitset->bits, bytes));
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanBitsetDestroy(ZyanBitset* bitset)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanVectorDestroy(&bitset->bits);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Logical operations                                                                             */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanBitsetPerformByteOperation(ZyanBitset* destination, const ZyanBitset* source,
+    ZyanBitsetByteOperation operation)
+{
+    if (!destination || !source || !operation)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanUSize s1;
+    ZyanUSize s2;
+    ZYAN_CHECK(ZyanVectorGetSize(&destination->bits, &s1));
+    ZYAN_CHECK(ZyanVectorGetSize(&source->bits, &s2));
+
+    const ZyanUSize min = ZYAN_MIN(s1, s2);
+    for (ZyanUSize i = 0; i < min; ++i)
+    {
+        ZyanU8* v1;
+        const ZyanU8* v2;
+        ZYAN_CHECK(ZyanVectorGetPointerMutable(&destination->bits, i, (void**)&v1));
+        ZYAN_CHECK(ZyanVectorGetPointer(&source->bits, i, (const void**)&v2));
+
+        ZYAN_ASSERT(v1);
+        ZYAN_ASSERT(v2);
+
+        ZYAN_CHECK(operation(v1, v2));
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanBitsetAND(ZyanBitset* destination, const ZyanBitset* source)
+{
+    return ZyanBitsetPerformByteOperation(destination, source, ZyanBitsetOperationAND);
+}
+
+ZyanStatus ZyanBitsetOR (ZyanBitset* destination, const ZyanBitset* source)
+{
+    return ZyanBitsetPerformByteOperation(destination, source, ZyanBitsetOperationOR );
+}
+
+ZyanStatus ZyanBitsetXOR(ZyanBitset* destination, const ZyanBitset* source)
+{
+    return ZyanBitsetPerformByteOperation(destination, source, ZyanBitsetOperationXOR);
+}
+
+ZyanStatus ZyanBitsetFlip(ZyanBitset* bitset)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanUSize size;
+    ZYAN_CHECK(ZyanVectorGetSize(&bitset->bits, &size));
+    for (ZyanUSize i = 0; i < size; ++i)
+    {
+        ZyanU8* value;
+        ZYAN_CHECK(ZyanVectorGetPointerMutable(&bitset->bits, i, (void**)&value));
+        *value = ~(*value);
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Bit access                                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanBitsetSet(ZyanBitset* bitset, ZyanUSize index)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (index >= bitset->size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZyanU8* value;
+    ZYAN_CHECK(ZyanVectorGetPointerMutable(&bitset->bits, index / 8, (void**)&value));
+
+    *value |= (1 << ZYAN_BITSET_BIT_OFFSET(index));
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanBitsetReset(ZyanBitset* bitset, ZyanUSize index)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (index >= bitset->size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZyanU8* value;
+    ZYAN_CHECK(ZyanVectorGetPointerMutable(&bitset->bits, index / 8, (void**)&value));
+    *value &= ~(1 << ZYAN_BITSET_BIT_OFFSET(index));
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanBitsetAssign(ZyanBitset* bitset, ZyanUSize index, ZyanBool value)
+{
+    if (value)
+    {
+        return ZyanBitsetSet(bitset, index);
+    }
+    return ZyanBitsetReset(bitset, index);
+}
+
+ZyanStatus ZyanBitsetToggle(ZyanBitset* bitset, ZyanUSize index)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (index >= bitset->size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZyanU8* value;
+    ZYAN_CHECK(ZyanVectorGetPointerMutable(&bitset->bits, index / 8, (void**)&value));
+    *value ^= (1 << ZYAN_BITSET_BIT_OFFSET(index));
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanBitsetTest(ZyanBitset* bitset, ZyanUSize index)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (index >= bitset->size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    const ZyanU8* value;
+    ZYAN_CHECK(ZyanVectorGetPointer(&bitset->bits, index / 8, (const void**)&value));
+    if ((*value & (1 << ZYAN_BITSET_BIT_OFFSET(index))) == 0)
+    {
+        return ZYAN_STATUS_FALSE;
+    }
+    return ZYAN_STATUS_TRUE;
+}
+
+ZyanStatus ZyanBitsetTestMSB(ZyanBitset* bitset)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanBitsetTest(bitset, bitset->size - 1);
+}
+
+ZyanStatus ZyanBitsetTestLSB(ZyanBitset* bitset)
+{
+    return ZyanBitsetTest(bitset, 0);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanBitsetSetAll(ZyanBitset* bitset)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanUSize size;
+    ZYAN_CHECK(ZyanVectorGetSize(&bitset->bits, &size));
+    for (ZyanUSize i = 0; i < size; ++i)
+    {
+        ZyanU8* value;
+        ZYAN_CHECK(ZyanVectorGetPointerMutable(&bitset->bits, i, (void**)&value));
+        *value = 0xFF;
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanBitsetResetAll(ZyanBitset* bitset)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanUSize size;
+    ZYAN_CHECK(ZyanVectorGetSize(&bitset->bits, &size));
+    for (ZyanUSize i = 0; i < size; ++i)
+    {
+        ZyanU8* value;
+        ZYAN_CHECK(ZyanVectorGetPointerMutable(&bitset->bits, i, (void**)&value));
+        *value = 0x00;
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Size management                                                                                */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanBitsetPush(ZyanBitset* bitset, ZyanBool value)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    if ((bitset->size++ % 8) == 0)
+    {
+        static const ZyanU8 zero = 0;
+        ZYAN_CHECK(ZyanVectorPushBack(&bitset->bits, &zero));
+    }
+
+    return ZyanBitsetAssign(bitset, bitset->size - 1, value);
+}
+
+ZyanStatus ZyanBitsetPop(ZyanBitset* bitset)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    if ((--bitset->size % 8) == 0)
+    {
+        return ZyanVectorPopBack(&bitset->bits);
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanBitsetClear(ZyanBitset* bitset)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    bitset->size = 0;
+    return ZyanVectorClear(&bitset->bits);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Memory management                                                                              */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanBitsetReserve(ZyanBitset* bitset, ZyanUSize count)
+{
+    return ZyanVectorReserve(&bitset->bits, ZYAN_BITSET_BITS_TO_BYTES(count));
+}
+
+ZyanStatus ZyanBitsetShrinkToFit(ZyanBitset* bitset)
+{
+    return ZyanVectorShrinkToFit(&bitset->bits);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Information                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanBitsetGetSize(const ZyanBitset* bitset, ZyanUSize* size)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *size = bitset->size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanBitsetGetCapacity(const ZyanBitset* bitset, ZyanUSize* capacity)
+{
+    ZYAN_CHECK(ZyanBitsetGetCapacityBytes(bitset, capacity));
+    *capacity *= 8;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanBitsetGetSizeBytes(const ZyanBitset* bitset, ZyanUSize* size)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanVectorGetSize(&bitset->bits, size);
+}
+
+ZyanStatus ZyanBitsetGetCapacityBytes(const ZyanBitset* bitset, ZyanUSize* capacity)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanVectorGetCapacity(&bitset->bits, capacity);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanBitsetCount(const ZyanBitset* bitset, ZyanUSize* count)
+{
+    if (!bitset || !count)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *count = 0;
+
+    ZyanUSize size;
+    ZYAN_CHECK(ZyanVectorGetSize(&bitset->bits, &size));
+    for (ZyanUSize i = 0; i < size; ++i)
+    {
+        ZyanU8* value;
+        ZYAN_CHECK(ZyanVectorGetPointer(&bitset->bits, i, (const void**)&value));
+
+        ZyanU8 popcnt = *value;
+        popcnt = (popcnt & 0x55) + ((popcnt >> 1) & 0x55);
+        popcnt = (popcnt & 0x33) + ((popcnt >> 2) & 0x33);
+        popcnt = (popcnt & 0x0F) + ((popcnt >> 4) & 0x0F);
+
+        *count += popcnt;
+    }
+
+    *count = ZYAN_MIN(*count, bitset->size);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanBitsetAll(const ZyanBitset* bitset)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanUSize size;
+    ZYAN_CHECK(ZyanVectorGetSize(&bitset->bits, &size));
+    for (ZyanUSize i = 0; i < size; ++i)
+    {
+        ZyanU8* value;
+        ZYAN_CHECK(ZyanVectorGetPointer(&bitset->bits, i, (const void**)&value));
+        if (i < (size - 1))
+        {
+            if (*value != 0xFF)
+            {
+                return ZYAN_STATUS_FALSE;
+            }
+        } else
+        {
+            const ZyanU8 mask = ~(8 - (bitset->size % 8));
+            if ((*value & mask) != mask)
+            {
+                return ZYAN_STATUS_FALSE;
+            }
+        }
+    }
+
+    return ZYAN_STATUS_TRUE;
+}
+
+ZyanStatus ZyanBitsetAny(const ZyanBitset* bitset)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanUSize size;
+    ZYAN_CHECK(ZyanVectorGetSize(&bitset->bits, &size));
+    for (ZyanUSize i = 0; i < size; ++i)
+    {
+        ZyanU8* value;
+        ZYAN_CHECK(ZyanVectorGetPointer(&bitset->bits, i, (const void**)&value));
+        if (i < (size - 1))
+        {
+            if (*value != 0x00)
+            {
+                return ZYAN_STATUS_TRUE;
+            }
+        } else
+        {
+            const ZyanU8 mask = ~(8 - (bitset->size % 8));
+            if ((*value & mask) != 0x00)
+            {
+                return ZYAN_STATUS_TRUE;
+            }
+        }
+    }
+
+    return ZYAN_STATUS_FALSE;
+}
+
+ZyanStatus ZyanBitsetNone(const ZyanBitset* bitset)
+{
+    if (!bitset)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanUSize size;
+    ZYAN_CHECK(ZyanVectorGetSize(&bitset->bits, &size));
+    for (ZyanUSize i = 0; i < size; ++i)
+    {
+        ZyanU8* value;
+        ZYAN_CHECK(ZyanVectorGetPointer(&bitset->bits, i, (const void**)&value));
+        if (i < (size - 1))
+        {
+            if (*value != 0x00)
+            {
+                return ZYAN_STATUS_FALSE;
+            }
+        } else
+        {
+            const ZyanU8 mask = ~(8 - (bitset->size % 8));
+            if ((*value & mask) != 0x00)
+            {
+                return ZYAN_STATUS_FALSE;
+            }
+        }
+    }
+
+    return ZYAN_STATUS_TRUE;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+//ZyanStatus ZyanBitsetToU32(const ZyanBitset* bitset, ZyanU32* value)
+//{
+//    if (!bitset)
+//    {
+//        return ZYAN_STATUS_INVALID_ARGUMENT;
+//    }
+//    if (bitset->size > 32)
+//    {
+//        return ZYAN_STATUS_INVALID_OPERATION;
+//    }
+//
+//    // TODO:
+//
+//    return ZYAN_STATUS_SUCCESS;
+//}
+//
+//ZyanStatus ZyanBitsetToU64(const ZyanBitset* bitset, ZyanU64* value)
+//{
+//    if (!bitset)
+//    {
+//        return ZYAN_STATUS_INVALID_ARGUMENT;
+//    }
+//    if (bitset->size > 64)
+//    {
+//        return ZYAN_STATUS_INVALID_OPERATION;
+//    }
+//
+//    // TODO:
+//
+//    return ZYAN_STATUS_SUCCESS;
+//}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
diff --git a/js/src/zydis/Zycore/Bitset.h b/js/src/zydis/Zycore/Bitset.h
new file mode 100644
index 0000000000..962f196a57
--- /dev/null
+++ b/js/src/zydis/Zycore/Bitset.h
@@ -0,0 +1,483 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Implements the bitset class.
+ */
+
+#ifndef ZYCORE_BITSET_H
+#define ZYCORE_BITSET_H
+
+#include "zydis/Zycore/Allocator.h"
+#include "zydis/Zycore/Status.h"
+#include "zydis/Zycore/Types.h"
+#include "zydis/Zycore/Vector.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ============================================================================================== */
+/* Enums and types                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Defines the `ZyanVector` struct.
+ *
+ * All fields in this struct should be considered as "private". Any changes may lead to unexpected
+ * behavior.
+ */
+typedef struct ZyanBitset_
+{
+    /**
+     * The bitset size.
+     */
+    ZyanUSize size;
+    /**
+     * The bitset data.
+     */
+    ZyanVector bits;
+} ZyanBitset;
+
+/**
+ * Defines the `ZyanBitsetByteOperation` function prototype.
+ *
+ * @param   v1  A pointer to the first byte. This value receives the result after performing the
+ *              desired operation.
+ * @param   v2  A pointer to the second byte.
+ *
+ * @return  A zyan status code.
+ *
+ * This function is used to perform byte-wise operations on two `ZyanBitset` instances.
+ */
+typedef ZyanStatus (*ZyanBitsetByteOperation)(ZyanU8* v1, const ZyanU8* v2);
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Constructor and destructor                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+/**
+ * Initializes the given `ZyanBitset` instance.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ * @param   count   The initial amount of bits.
+ *
+ * @return  A zyan status code.
+ *
+ * The space for the bitset is dynamically allocated by the default allocator using the default
+ * growth factor and the default shrink threshold.
+ */
+ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanStatus ZyanBitsetInit(ZyanBitset* bitset, ZyanUSize count);
+
+#endif // ZYAN_NO_LIBC
+
+/**
+ * Initializes the given `ZyanBitset` instance and sets a custom `allocator` and memory
+ * allocation/deallocation parameters.
+ *
+ * @param   bitset              A pointer to the `ZyanBitset` instance.
+ * @param   count               The initial amount of bits.
+ * @param   allocator           A pointer to a `ZyanAllocator` instance.
+ * @param   growth_factor       The growth factor.
+ * @param   shrink_threshold    The shrink threshold.
+ *
+ * @return  A zyan status code.
+ *
+ * A growth factor of `1` disables overallocation and a shrink threshold of `0` disables
+ * dynamic shrinking.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetInitEx(ZyanBitset* bitset, ZyanUSize count,
+    ZyanAllocator* allocator, ZyanU8 growth_factor, ZyanU8 shrink_threshold);
+
+/**
+ * Initializes the given `ZyanBitset` instance and configures it to use a custom user
+ * defined buffer with a fixed size.
+ *
+ * @param   bitset      A pointer to the `ZyanBitset` instance.
+ * @param   count       The initial amount of bits.
+ * @param   buffer      A pointer to the buffer that is used as storage for the bits.
+ * @param   capacity    The maximum capacity (number of bytes) of the buffer.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetInitBuffer(ZyanBitset* bitset, ZyanUSize count, void* buffer,
+    ZyanUSize capacity);
+
+/**
+ * Destroys the given `ZyanBitset` instance.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetDestroy(ZyanBitset* bitset);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Logical operations                                                                             */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Performs a byte-wise `operation` for every byte in the given `ZyanBitset` instances.
+ *
+ * @param   destination A pointer to the `ZyanBitset` instance that is used as the first input and
+ *                      as the destination.
+ * @param   source      A pointer to the `ZyanBitset` instance that is used as the second input.
+ * @param   operation   A pointer to the function that performs the desired operation.
+ *
+ * @return  A zyan status code.
+ *
+ * The `operation` callback is invoked once for every byte in the smallest of the `ZyanBitset`
+ * instances.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetPerformByteOperation(ZyanBitset* destination,
+    const ZyanBitset* source, ZyanBitsetByteOperation operation);
+
+/**
+ * Performs a logical `AND` operation on the given `ZyanBitset` instances.
+ *
+ * @param   destination A pointer to the `ZyanBitset` instance that is used as the first input and
+ *                      as the destination.
+ * @param   source      A pointer to the `ZyanBitset` instance that is used as the second input.
+ *
+ * @return  A zyan status code.
+ *
+ * If the destination bitmask contains more bits than the source one, the state of the remaining
+ * bits will be undefined.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetAND(ZyanBitset* destination, const ZyanBitset* source);
+
+/**
+ * Performs a logical `OR`  operation on the given `ZyanBitset` instances.
+ *
+ * @param   destination A pointer to the `ZyanBitset` instance that is used as the first input and
+ *                      as the destination.
+ * @param   source      A pointer to the `ZyanBitset` instance that is used as the second input.
+ *
+ * @return  A zyan status code.
+ *
+ * If the destination bitmask contains more bits than the source one, the state of the remaining
+ * bits will be undefined.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetOR (ZyanBitset* destination, const ZyanBitset* source);
+
+/**
+ * Performs a logical `XOR` operation on the given `ZyanBitset` instances.
+ *
+ * @param   destination A pointer to the `ZyanBitset` instance that is used as the first input and
+ *                      as the destination.
+ * @param   source      A pointer to the `ZyanBitset` instance that is used as the second input.
+ *
+ * @return  A zyan status code.
+ *
+ * If the destination bitmask contains more bits than the source one, the state of the remaining
+ * bits will be undefined.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetXOR(ZyanBitset* destination, const ZyanBitset* source);
+
+/**
+ * Flips all bits of the given `ZyanBitset` instance.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetFlip(ZyanBitset* bitset);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Bit access                                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Sets the bit at `index` of the given `ZyanBitset` instance to `1`.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ * @param   index   The bit index.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetSet(ZyanBitset* bitset, ZyanUSize index);
+
+/**
+ * Sets the bit at `index` of the given `ZyanBitset` instance to `0`.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ * @param   index   The bit index.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetReset(ZyanBitset* bitset, ZyanUSize index);
+
+/**
+ * Sets the bit at `index` of the given `ZyanBitset` instance to the specified `value`.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ * @param   index   The bit index.
+ * @param   value   The new value.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetAssign(ZyanBitset* bitset, ZyanUSize index, ZyanBool value);
+
+/**
+ * Toggles the bit at `index` of the given `ZyanBitset` instance.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ * @param   index   The bit index.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetToggle(ZyanBitset* bitset, ZyanUSize index);
+
+/**
+ * Returns the value of the bit at `index`.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ * @param   index   The bit index.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the bit is set or `ZYAN_STATUS_FALSE`, if not, Another zyan
+ *          status code, if an error occurred.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetTest(ZyanBitset* bitset, ZyanUSize index);
+
+/**
+ * Returns the value of the most significant bit.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the bit is set or `ZYAN_STATUS_FALSE`, if not. Another zyan
+ *          status code, if an error occurred.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetTestMSB(ZyanBitset* bitset);
+
+/**
+ * Returns the value of the least significant bit.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the bit is set or `ZYAN_STATUS_FALSE`, if not. Another zyan
+ *          status code, if an error occurred.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetTestLSB(ZyanBitset* bitset);
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Sets all bits of the given `ZyanBitset` instance to `1`.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetSetAll(ZyanBitset* bitset);
+
+/**
+ * Sets all bits of the given `ZyanBitset` instance to `0`.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetResetAll(ZyanBitset* bitset);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Size management                                                                                */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Adds a new bit at the end of the bitset.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ * @param   value   The value of the new bit.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetPush(ZyanBitset* bitset, ZyanBool value);
+
+/**
+ * Removes the last bit of the bitset.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetPop(ZyanBitset* bitset);
+
+/**
+ * Deletes all bits of the given `ZyanBitset` instance.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetClear(ZyanBitset* bitset);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Memory management                                                                              */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Changes the capacity of the given `ZyanBitset` instance.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ * @param   count   The new capacity (number of bits).
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetReserve(ZyanBitset* bitset, ZyanUSize count);
+
+/**
+ * Shrinks the capacity of the given bitset to match it's size.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetShrinkToFit(ZyanBitset* bitset);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Information                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns the current size of the bitset in bits.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ * @param   size    Receives the size of the bitset in bits.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetGetSize(const ZyanBitset* bitset, ZyanUSize* size);
+
+/**
+ * Returns the current capacity of the bitset in bits.
+ *
+ * @param   bitset      A pointer to the `ZyanBitset` instance.
+ * @param   capacity    Receives the size of the bitset in bits.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetGetCapacity(const ZyanBitset* bitset, ZyanUSize* capacity);
+
+/**
+ * Returns the current size of the bitset in bytes.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ * @param   size    Receives the size of the bitset in bytes.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetGetSizeBytes(const ZyanBitset* bitset, ZyanUSize* size);
+
+/**
+ * Returns the current capacity of the bitset in bytes.
+ *
+ * @param   bitset      A pointer to the `ZyanBitset` instance.
+ * @param   capacity    Receives the size of the bitset in bytes.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetGetCapacityBytes(const ZyanBitset* bitset, ZyanUSize* capacity);
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns the amount of bits set in the given bitset.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ * @param   count   Receives the amount of bits set in the given bitset.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetCount(const ZyanBitset* bitset, ZyanUSize* count);
+
+/**
+ * Checks, if all bits of the given bitset are set.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if all bits are set, `ZYAN_STATUS_FALSE`, if not. Another zyan
+ *          status code, if an error occurred.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetAll(const ZyanBitset* bitset);
+
+/**
+ * Checks, if at least one bit of the given bitset is set.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if at least one bit is set, `ZYAN_STATUS_FALSE`, if not. Another
+ *          zyan status code, if an error occurred.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetAny(const ZyanBitset* bitset);
+
+/**
+ * Checks, if none bits of the given bitset are set.
+ *
+ * @param   bitset  A pointer to the `ZyanBitset` instance.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if none bits are set, `ZYAN_STATUS_FALSE`, if not. Another zyan
+ *          status code, if an error occurred.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanBitsetNone(const ZyanBitset* bitset);
+
+///* ---------------------------------------------------------------------------------------------- */
+//
+///**
+// * Returns a 32-bit unsigned integer representation of the data.
+// *
+// * @param   bitset  A pointer to the `ZyanBitset` instance.
+// * @param   value   Receives the 32-bit unsigned integer representation of the data.
+// *
+// * @return  A zyan status code.
+// */
+//ZYCORE_EXPORT ZyanStatus ZyanBitsetToU32(const ZyanBitset* bitset, ZyanU32* value);
+//
+///**
+// * Returns a 64-bit unsigned integer representation of the data.
+// *
+// * @param   bitset  A pointer to the `ZyanBitset` instance.
+// * @param   value   Receives the 64-bit unsigned integer representation of the data.
+// *
+// * @return  A zyan status code.
+// */
+//ZYCORE_EXPORT ZyanStatus ZyanBitsetToU64(const ZyanBitset* bitset, ZyanU64* value);
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_BITSET_H */
diff --git a/js/src/zydis/Zycore/Comparison.h b/js/src/zydis/Zycore/Comparison.h
new file mode 100644
index 0000000000..4e7826609a
--- /dev/null
+++ b/js/src/zydis/Zycore/Comparison.h
@@ -0,0 +1,316 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Defines prototypes of general-purpose comparison functions.
+ */
+
+#ifndef ZYCORE_COMPARISON_H
+#define ZYCORE_COMPARISON_H
+
+#include "zydis/Zycore/Defines.h"
+#include "zydis/Zycore/Types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ============================================================================================== */
+/* Enums and types                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Defines the `ZyanEqualityComparison` function prototype.
+ *
+ * @param   left    A pointer to the first element.
+ * @param   right   A pointer to the second element.
+ *
+ * @return  This function should return `ZYAN_TRUE` if the `left` element equals the `right` one
+ *          or `ZYAN_FALSE`, if not.
+ */
+typedef ZyanBool (*ZyanEqualityComparison)(const void* left, const void* right);
+
+/**
+ * Defines the `ZyanComparison` function prototype.
+ *
+ * @param   left    A pointer to the first element.
+ * @param   right   A pointer to the second element.
+ *
+ * @return  This function should return values in the following range:
+ *          `left == right -> result == 0`
+ *          `left <  right -> result  < 0`
+ *          `left >  right -> result  > 0`
+ */
+typedef ZyanI32 (*ZyanComparison)(const void* left, const void* right);
+
+/* ============================================================================================== */
+/* Macros                                                                                         */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Equality comparison functions                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Declares a generic equality comparison function for an integral data-type.
+ *
+ * @param   name    The name of the function.
+ * @param   type    The name of the integral data-type.
+ */
+#define ZYAN_DECLARE_EQUALITY_COMPARISON(name, type) \
+    ZyanBool name(const type* left, const type* right) \
+    { \
+        ZYAN_ASSERT(left); \
+        ZYAN_ASSERT(right); \
+        \
+        return (*left == *right) ? ZYAN_TRUE : ZYAN_FALSE; \
+    }
+
+/**
+ * Declares a generic equality comparison function that compares a single integral
+ *          data-type field of a struct.
+ *
+ * @param   name        The name of the function.
+ * @param   type        The name of the integral data-type.
+ * @param   field_name  The name of the struct field.
+ */
+#define ZYAN_DECLARE_EQUALITY_COMPARISON_FOR_FIELD(name, type, field_name) \
+    ZyanBool name(const type* left, const type* right) \
+    { \
+        ZYAN_ASSERT(left); \
+        ZYAN_ASSERT(right); \
+        \
+        return (left->field_name == right->field_name) ? ZYAN_TRUE : ZYAN_FALSE; \
+    }
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Comparison functions                                                                           */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Declares a generic comparison function for an integral data-type.
+ *
+ * @param   name    The name of the function.
+ * @param   type    The name of the integral data-type.
+ */
+#define ZYAN_DECLARE_COMPARISON(name, type) \
+    ZyanI32 name(const type* left, const type* right) \
+    { \
+        ZYAN_ASSERT(left); \
+        ZYAN_ASSERT(right); \
+        \
+        if (*left < *right) \
+        { \
+            return -1; \
+        } \
+        if (*left > *right) \
+        { \
+            return  1; \
+        } \
+        return 0; \
+    }
+
+/**
+ * Declares a generic comparison function that compares a single integral data-type field
+ *          of a struct.
+ *
+ * @param   name        The name of the function.
+ * @param   type        The name of the integral data-type.
+ * @param   field_name  The name of the struct field.
+ */
+#define ZYAN_DECLARE_COMPARISON_FOR_FIELD(name, type, field_name) \
+    ZyanI32 name(const type* left, const type* right) \
+    { \
+        ZYAN_ASSERT(left); \
+        ZYAN_ASSERT(right); \
+        \
+        if (left->field_name < right->field_name) \
+        { \
+            return -1; \
+        } \
+        if (left->field_name > right->field_name) \
+        { \
+            return  1; \
+        } \
+        return 0; \
+    }
+
+ /* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Default equality comparison functions                                                          */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Defines a default equality comparison function for pointer values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if
+ *          not.
+ */
+ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsPointer, void* const)
+
+/**
+ * Defines a default equality comparison function for `ZyanBool` values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if
+ *          not.
+ */
+ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsBool, ZyanBool)
+
+/**
+ * Defines a default equality comparison function for 8-bit numeric values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if
+ *          not.
+ */
+ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsNumeric8, ZyanU8)
+
+/**
+ * Defines a default equality comparison function for 16-bit numeric values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if
+ *          not.
+ */
+ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsNumeric16, ZyanU16)
+
+/**
+ * Defines a default equality comparison function for 32-bit numeric values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if
+ *          not.
+ */
+ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsNumeric32, ZyanU32)
+
+/**
+ * Defines a default equality comparison function for 64-bit numeric values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if
+ *          not.
+ */
+ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsNumeric64, ZyanU64)
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Default comparison functions                                                                   */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Defines a default comparison function for pointer values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is
+ *          less than the `right` one, or `1` if the `left` value is greater than the `right` one.
+ */
+ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanComparePointer, void* const)
+
+/**
+ * Defines a default comparison function for `ZyanBool` values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is
+ *          less than the `right` one, or `1` if the `left` value is greater than the `right` one.
+ */
+ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanCompareBool, ZyanBool)
+
+/**
+ * Defines a default comparison function for 8-bit numeric values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is
+ *          less than the `right` one, or `1` if the `left` value is greater than the `right` one.
+ */
+ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanCompareNumeric8, ZyanU8)
+
+/**
+ * Defines a default comparison function for 16-bit numeric values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is
+ *          less than the `right` one, or `1` if the `left` value is greater than the `right` one.
+ */
+ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanCompareNumeric16, ZyanU16)
+
+/**
+ * Defines a default comparison function for 32-bit numeric values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is
+ *          less than the `right` one, or `1` if the `left` value is greater than the `right` one.
+ */
+ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanCompareNumeric32, ZyanU32)
+
+/**
+ * Defines a default comparison function for 64-bit numeric values.
+ *
+ * @param   left    A pointer to the first value.
+ * @param   right   A pointer to the second value.
+ *
+ * @return  Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is
+ *          less than the `right` one, or `1` if the `left` value is greater than the `right` one.
+ */
+ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanCompareNumeric64, ZyanU64)
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_COMPARISON_H */
diff --git a/js/src/zydis/Zycore/Defines.h b/js/src/zydis/Zycore/Defines.h
new file mode 100644
index 0000000000..31d09a1613
--- /dev/null
+++ b/js/src/zydis/Zycore/Defines.h
@@ -0,0 +1,546 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd, Joel Hoener
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * General helper and platform detection macros.
+ */
+
+#ifndef ZYCORE_DEFINES_H
+#define ZYCORE_DEFINES_H
+
+/* ============================================================================================== */
+/* Meta macros                                                                                    */
+/* ============================================================================================== */
+
+/**
+ * Concatenates two values using the stringify operator (`##`).
+ *
+ * @param   x   The first value.
+ * @param   y   The second value.
+ *
+ * @return  The combined string of the given values.
+ */
+#define ZYAN_MACRO_CONCAT(x, y) x ## y
+
+/**
+ * Concatenates two values using the stringify operator (`##`) and expands the value to
+ *          be used in another macro.
+ *
+ * @param   x   The first value.
+ * @param   y   The second value.
+ *
+ * @return  The combined string of the given values.
+ */
+#define ZYAN_MACRO_CONCAT_EXPAND(x, y) ZYAN_MACRO_CONCAT(x, y)
+
+/* ============================================================================================== */
+/* Compiler detection                                                                             */
+/* ============================================================================================== */
+
+#if defined(__clang__)
+#   define ZYAN_CLANG
+#   define ZYAN_GNUC
+#elif defined(__ICC) || defined(__INTEL_COMPILER)
+#   define ZYAN_ICC
+#elif defined(__GNUC__) || defined(__GNUG__)
+#   define ZYAN_GCC
+#   define ZYAN_GNUC
+#elif defined(_MSC_VER)
+#   define ZYAN_MSVC
+#elif defined(__BORLANDC__)
+#   define ZYAN_BORLAND
+#else
+#   define ZYAN_UNKNOWN_COMPILER
+#endif
+
+/* ============================================================================================== */
+/* Platform detection                                                                             */
+/* ============================================================================================== */
+
+#if defined(_WIN32)
+#   define ZYAN_WINDOWS
+#elif defined(__EMSCRIPTEN__)
+#   define ZYAN_EMSCRIPTEN
+#elif defined(__wasi__) || defined(__WASI__)
+// via: https://reviews.llvm.org/D57155
+#   define ZYAN_WASI
+#elif defined(__APPLE__)
+#   define ZYAN_APPLE
+#   define ZYAN_POSIX
+#elif defined(__linux)
+#   define ZYAN_LINUX
+#   define ZYAN_POSIX
+#elif defined(__FreeBSD__)
+#   define ZYAN_FREEBSD
+#   define ZYAN_POSIX
+#elif defined(__NetBSD__)
+#   define ZYAN_NETBSD
+#   define ZYAN_POSIX
+#elif defined(sun) || defined(__sun)
+#   define ZYAN_SOLARIS
+#   define ZYAN_POSIX
+#elif defined(__unix) || defined(__unix__)
+#   define ZYAN_UNIX
+#   define ZYAN_POSIX
+#elif defined(__posix)
+#   define ZYAN_POSIX
+#else
+#   define ZYAN_UNKNOWN_PLATFORM
+#endif
+
+/* ============================================================================================== */
+/* Kernel mode detection                                                                          */
+/* ============================================================================================== */
+
+#if (defined(ZYAN_WINDOWS) && defined(_KERNEL_MODE)) || \
+    (defined(ZYAN_APPLE) && defined(KERNEL)) || \
+    (defined(ZYAN_LINUX) && defined(__KERNEL__)) || \
+    (defined(__FreeBSD_kernel__))
+#   define ZYAN_KERNEL
+#else
+#   define ZYAN_USER
+#endif
+
+/* ============================================================================================== */
+/* Architecture detection                                                                         */
+/* ============================================================================================== */
+
+#if defined(_M_AMD64) || defined(__x86_64__)
+#   define ZYAN_X64
+#elif defined(_M_IX86) || defined(__i386__)
+#   define ZYAN_X86
+#elif defined(_M_ARM64) || defined(__aarch64__)
+#   define ZYAN_AARCH64
+#elif defined(_M_ARM) || defined(_M_ARMT) || defined(__arm__) || defined(__thumb__)
+#   define ZYAN_ARM
+#elif defined(__EMSCRIPTEN__) || defined(__wasm__) || defined(__WASM__)
+#   define ZYAN_WASM
+#elif defined(__loongarch__)
+#   define ZYAN_LOONGARCH
+#elif defined(__powerpc64__)
+#   define ZYAN_PPC64
+#elif defined(__powerpc__)
+#   define ZYAN_PPC
+#elif defined(__riscv) && __riscv_xlen == 64
+#   define ZYAN_RISCV64
+#else
+#   error "Unsupported architecture detected"
+#endif
+
+/* ============================================================================================== */
+/* Debug/Release detection                                                                        */
+/* ============================================================================================== */
+
+#if defined(ZYAN_MSVC) || defined(ZYAN_BORLAND)
+#   ifdef _DEBUG
+#       define ZYAN_DEBUG
+#   else
+#       define ZYAN_RELEASE
+#   endif
+#elif defined(ZYAN_GNUC) || defined(ZYAN_ICC)
+#   ifdef NDEBUG
+#       define ZYAN_RELEASE
+#   else
+#       define ZYAN_DEBUG
+#   endif
+#else
+#   define ZYAN_RELEASE
+#endif
+
+/* ============================================================================================== */
+/* Deprecation hint                                                                               */
+/* ============================================================================================== */
+
+#if defined(ZYAN_GCC) || defined(ZYAN_CLANG)
+#   define ZYAN_DEPRECATED __attribute__((__deprecated__))
+#elif defined(ZYAN_MSVC)
+#   define ZYAN_DEPRECATED __declspec(deprecated)
+#else
+#   define ZYAN_DEPRECATED
+#endif
+
+/* ============================================================================================== */
+/* Generic DLL import/export helpers                                                              */
+/* ============================================================================================== */
+
+#if defined(ZYAN_MSVC)
+#   define ZYAN_DLLEXPORT __declspec(dllexport)
+#   define ZYAN_DLLIMPORT __declspec(dllimport)
+#else
+#   define ZYAN_DLLEXPORT
+#   define ZYAN_DLLIMPORT
+#endif
+
+/* ============================================================================================== */
+/* Zycore dll{export,import}                                                                      */
+/* ============================================================================================== */
+
+// This is a cut-down version of what CMake's `GenerateExportHeader` would usually generate. To
+// simplify builds without CMake, we define these things manually instead of relying on CMake
+// to generate the header.
+//
+// For static builds, our CMakeList will define `ZYCORE_STATIC_BUILD`. For shared library builds,
+// our CMake will define `ZYCORE_SHOULD_EXPORT` depending on whether the target is being imported or
+// exported. If CMake isn't used, users can manually define these to fit their use-case.
+
+// Backward compatibility: CMake would previously generate these variables names. However, because
+// they have pretty cryptic names, we renamed them when we got rid of `GenerateExportHeader`. For
+// backward compatibility for users that don't use CMake and previously manually defined these, we
+// translate the old defines here and print a warning.
+#if defined(ZYCORE_STATIC_DEFINE)
+#   pragma message("ZYCORE_STATIC_DEFINE was renamed to ZYCORE_STATIC_BUILD.")
+#   define ZYCORE_STATIC_BUILD
+#endif
+#if defined(Zycore_EXPORTS)
+#   pragma message("Zycore_EXPORTS was renamed to ZYCORE_SHOULD_EXPORT.")
+#   define ZYCORE_SHOULD_EXPORT
+#endif
+
+/**
+ * Symbol is exported in shared library builds.
+ */
+#if defined(ZYCORE_STATIC_BUILD)
+#   define ZYCORE_EXPORT
+#else
+#   if defined(ZYCORE_SHOULD_EXPORT)
+#       define ZYCORE_EXPORT ZYAN_DLLEXPORT
+#   else
+#       define ZYCORE_EXPORT ZYAN_DLLIMPORT
+#   endif
+#endif
+
+/**
+ * Symbol is not exported and for internal use only.
+ */
+#define ZYCORE_NO_EXPORT
+
+/* ============================================================================================== */
+/* Misc compatibility macros                                                                      */
+/* ============================================================================================== */
+
+#if defined(ZYAN_CLANG)
+#   define ZYAN_NO_SANITIZE(what) __attribute__((no_sanitize(what)))
+#else
+#   define ZYAN_NO_SANITIZE(what)
+#endif
+
+#if defined(ZYAN_MSVC) || defined(ZYAN_BORLAND)
+#   define ZYAN_INLINE __inline
+#else
+#   define ZYAN_INLINE static inline
+#endif
+
+#if defined(ZYAN_MSVC)
+#   define ZYAN_NOINLINE __declspec(noinline)
+#elif defined(ZYAN_GCC) || defined(ZYAN_CLANG)
+#   define ZYAN_NOINLINE __attribute__((noinline))
+#else
+#   define ZYAN_NOINLINE
+#endif
+
+/* ============================================================================================== */
+/* Debugging and optimization macros                                                              */
+/* ============================================================================================== */
+
+/**
+ * Runtime debug assertion.
+ */
+#if defined(ZYAN_NO_LIBC)
+#   define ZYAN_ASSERT(condition) (void)(condition)
+#elif defined(ZYAN_WINDOWS) && defined(ZYAN_KERNEL)
+#   include <wdm.h>
+#   define ZYAN_ASSERT(condition) NT_ASSERT(condition)
+#else
+#   include <assert.h>
+#   define ZYAN_ASSERT(condition) assert(condition)
+#endif
+
+/**
+ * Compiler-time assertion.
+ */
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__cplusplus)
+#   define ZYAN_STATIC_ASSERT(x) _Static_assert(x, #x)
+#elif (defined(__cplusplus) && __cplusplus >= 201103L) || \
+      (defined(__cplusplus) && defined (_MSC_VER) && (_MSC_VER >= 1600)) || \
+      (defined (_MSC_VER) && (_MSC_VER >= 1800))
+#   define ZYAN_STATIC_ASSERT(x) static_assert(x, #x)
+#else
+#   define ZYAN_STATIC_ASSERT(x) \
+        typedef int ZYAN_MACRO_CONCAT_EXPAND(ZYAN_SASSERT_, __COUNTER__) [(x) ? 1 : -1]
+#endif
+
+/**
+ * Marks the current code path as unreachable.
+ */
+#if defined(ZYAN_RELEASE)
+#   if defined(ZYAN_CLANG) // GCC eagerly evals && RHS, we have to use nested ifs.
+#       if __has_builtin(__builtin_unreachable)
+#           define ZYAN_UNREACHABLE __builtin_unreachable()
+#       else
+#           define ZYAN_UNREACHABLE for(;;)
+#       endif
+#   elif defined(ZYAN_GCC) && ((__GNUC__ == 4 && __GNUC_MINOR__ > 4) || __GNUC__ > 4)
+#       define ZYAN_UNREACHABLE __builtin_unreachable()
+#   elif defined(ZYAN_ICC)
+#       ifdef ZYAN_WINDOWS
+#           include <stdlib.h> // "missing return statement" workaround
+#           define ZYAN_UNREACHABLE __assume(0); (void)abort()
+#       else
+#           define ZYAN_UNREACHABLE __builtin_unreachable()
+#       endif
+#   elif defined(ZYAN_MSVC)
+#       define ZYAN_UNREACHABLE __assume(0)
+#   else
+#       define ZYAN_UNREACHABLE for(;;)
+#   endif
+#elif defined(ZYAN_NO_LIBC)
+#   define ZYAN_UNREACHABLE for(;;)
+#elif defined(ZYAN_WINDOWS) && defined(ZYAN_KERNEL)
+#   define ZYAN_UNREACHABLE { __fastfail(0); for(;;){} }
+#else
+#   include <stdlib.h>
+#   define ZYAN_UNREACHABLE { assert(0); abort(); }
+#endif
+
+/* ============================================================================================== */
+/* Utils                                                                                          */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* General purpose                                                                                */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Marks the specified parameter as unused.
+ *
+ * @param   x   The name of the unused parameter.
+ */
+#define ZYAN_UNUSED(x) (void)(x)
+
+/**
+ * Intentional fallthrough.
+ */
+#if defined(ZYAN_GCC) && __GNUC__ >= 7
+#   define ZYAN_FALLTHROUGH ; __attribute__((__fallthrough__))
+#else
+#   define ZYAN_FALLTHROUGH
+#endif
+
+/**
+ * Declares a bitfield.
+ *
+ * @param   x   The size (in bits) of the bitfield.
+ */
+#define ZYAN_BITFIELD(x) : x
+
+/**
+ * Marks functions that require libc (cannot be used with `ZYAN_NO_LIBC`).
+ */
+#define ZYAN_REQUIRES_LIBC
+
+/**
+ * Decorator for `printf`-style functions.
+ *
+ * @param   format_index    The 1-based index of the format string parameter.
+ * @param   first_to_check  The 1-based index of the format arguments parameter.
+ */
+#if defined(__RESHARPER__)
+#   define ZYAN_PRINTF_ATTR(format_index, first_to_check) \
+        [[gnu::format(printf, format_index, first_to_check)]]
+#elif defined(ZYAN_GCC)
+#   define ZYAN_PRINTF_ATTR(format_index, first_to_check) \
+        __attribute__((format(printf, format_index, first_to_check)))
+#else
+#   define ZYAN_PRINTF_ATTR(format_index, first_to_check)
+#endif
+
+/**
+ * Decorator for `wprintf`-style functions.
+ *
+ * @param   format_index    The 1-based index of the format string parameter.
+ * @param   first_to_check  The 1-based index of the format arguments parameter.
+ */
+#if defined(__RESHARPER__)
+#   define ZYAN_WPRINTF_ATTR(format_index, first_to_check) \
+        [[rscpp::format(wprintf, format_index, first_to_check)]]
+#else
+#   define ZYAN_WPRINTF_ATTR(format_index, first_to_check)
+#endif
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Arrays                                                                                         */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns the length (number of elements) of an array.
+ *
+ * @param   a   The name of the array.
+ *
+ * @return  The number of elements of the given array.
+ */
+#define ZYAN_ARRAY_LENGTH(a) (sizeof(a) / sizeof((a)[0]))
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Arithmetic                                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns the smaller value of `a` or `b`.
+ *
+ * @param   a   The first value.
+ * @param   b   The second value.
+ *
+ * @return  The smaller value of `a` or `b`.
+ */
+#define ZYAN_MIN(a, b) (((a) < (b)) ? (a) : (b))
+
+/**
+ * Returns the bigger value of `a` or `b`.
+ *
+ * @param   a   The first value.
+ * @param   b   The second value.
+ *
+ * @return  The bigger value of `a` or `b`.
+ */
+#define ZYAN_MAX(a, b) (((a) > (b)) ? (a) : (b))
+
+/**
+ * Returns the absolute value of `a`.
+ *
+ * @param   a   The value.
+ *
+ * @return  The absolute value of `a`.
+ */
+#define ZYAN_ABS(a) (((a) < 0) ? -(a) : (a))
+
+/**
+ * Checks, if the given value is a power of 2.
+ *
+ * @param   x   The value.
+ *
+ * @return  `ZYAN_TRUE`, if the given value is a power of 2 or `ZYAN_FALSE`, if not.
+ *
+ * Note that this macro always returns `ZYAN_TRUE` for `x == 0`.
+ */
+#define ZYAN_IS_POWER_OF_2(x) (((x) & ((x) - 1)) == 0)
+
+/**
+ * Checks, if the given value is properly aligned.
+ *
+ * Note that this macro only works for powers of 2.
+ */
+#define ZYAN_IS_ALIGNED_TO(x, align) (((x) & ((align) - 1)) == 0)
+
+/**
+ * Aligns the value to the nearest given alignment boundary (by rounding it up).
+ *
+ * @param   x       The value.
+ * @param   align   The desired alignment.
+ *
+ * @return  The aligned value.
+ *
+ * Note that this macro only works for powers of 2.
+ */
+#define ZYAN_ALIGN_UP(x, align) (((x) + (align) - 1) & ~((align) - 1))
+
+/**
+ * Aligns the value to the nearest given alignment boundary (by rounding it down).
+ *
+ * @param   x       The value.
+ * @param   align   The desired alignment.
+ *
+ * @return  The aligned value.
+ *
+ * Note that this macro only works for powers of 2.
+ */
+#define ZYAN_ALIGN_DOWN(x, align) (((x) - 1) & ~((align) - 1))
+
+/**
+ * Divide the 64bit integer value by the given divisor.
+ *
+ * @param   n       Variable containing the dividend that will be updated with the result of the
+ *                  division.
+ * @param   divisor The divisor.
+ */
+#if defined(ZYAN_LINUX) && defined(ZYAN_KERNEL)
+#   include <asm/div64.h> /* do_div */
+#   define ZYAN_DIV64(n, divisor) do_div(n, divisor)
+#else
+#   define ZYAN_DIV64(n, divisor) (n /= divisor)
+#endif
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Bit operations                                                                                 */
+/* ---------------------------------------------------------------------------------------------- */
+
+/*
+ * Checks, if the bit at index `b` is required to present the ordinal value `n`.
+ *
+ * @param   n   The ordinal value.
+ * @param   b   The bit index.
+ *
+ * @return  `ZYAN_TRUE`, if the bit at index `b` is required to present the ordinal value `n` or
+ *          `ZYAN_FALSE`, if not.
+ *
+ * Note that this macro always returns `ZYAN_FALSE` for `n == 0`.
+ */
+#define ZYAN_NEEDS_BIT(n, b) (((unsigned long)(n) >> (b)) > 0)
+
+/*
+ * Returns the number of bits required to represent the ordinal value `n`.
+ *
+ * @param   n   The ordinal value.
+ *
+ * @return  The number of bits required to represent the ordinal value `n`.
+ *
+ * Note that this macro returns `0` for `n == 0`.
+ */
+#define ZYAN_BITS_TO_REPRESENT(n) \
+    ( \
+        ZYAN_NEEDS_BIT(n,  0) + ZYAN_NEEDS_BIT(n,  1) + \
+        ZYAN_NEEDS_BIT(n,  2) + ZYAN_NEEDS_BIT(n,  3) + \
+        ZYAN_NEEDS_BIT(n,  4) + ZYAN_NEEDS_BIT(n,  5) + \
+        ZYAN_NEEDS_BIT(n,  6) + ZYAN_NEEDS_BIT(n,  7) + \
+        ZYAN_NEEDS_BIT(n,  8) + ZYAN_NEEDS_BIT(n,  9) + \
+        ZYAN_NEEDS_BIT(n, 10) + ZYAN_NEEDS_BIT(n, 11) + \
+        ZYAN_NEEDS_BIT(n, 12) + ZYAN_NEEDS_BIT(n, 13) + \
+        ZYAN_NEEDS_BIT(n, 14) + ZYAN_NEEDS_BIT(n, 15) + \
+        ZYAN_NEEDS_BIT(n, 16) + ZYAN_NEEDS_BIT(n, 17) + \
+        ZYAN_NEEDS_BIT(n, 18) + ZYAN_NEEDS_BIT(n, 19) + \
+        ZYAN_NEEDS_BIT(n, 20) + ZYAN_NEEDS_BIT(n, 21) + \
+        ZYAN_NEEDS_BIT(n, 22) + ZYAN_NEEDS_BIT(n, 23) + \
+        ZYAN_NEEDS_BIT(n, 24) + ZYAN_NEEDS_BIT(n, 25) + \
+        ZYAN_NEEDS_BIT(n, 26) + ZYAN_NEEDS_BIT(n, 27) + \
+        ZYAN_NEEDS_BIT(n, 28) + ZYAN_NEEDS_BIT(n, 29) + \
+        ZYAN_NEEDS_BIT(n, 30) + ZYAN_NEEDS_BIT(n, 31)   \
+    )
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#endif /* ZYCORE_DEFINES_H */
diff --git a/js/src/zydis/Zycore/Format.c b/js/src/zydis/Zycore/Format.c
new file mode 100644
index 0000000000..f59967c0ec
--- /dev/null
+++ b/js/src/zydis/Zycore/Format.c
@@ -0,0 +1,507 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#include "zydis/Zycore/Format.h"
+#include "zydis/Zycore/LibC.h"
+
+/* ============================================================================================== */
+/* Constants                                                                                      */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Defines                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+#define ZYCORE_MAXCHARS_DEC_32 10
+#define ZYCORE_MAXCHARS_DEC_64 20
+#define ZYCORE_MAXCHARS_HEX_32  8
+#define ZYCORE_MAXCHARS_HEX_64 16
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Lookup Tables                                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+static const char* const DECIMAL_LOOKUP =
+    "00010203040506070809"
+    "10111213141516171819"
+    "20212223242526272829"
+    "30313233343536373839"
+    "40414243444546474849"
+    "50515253545556575859"
+    "60616263646566676869"
+    "70717273747576777879"
+    "80818283848586878889"
+    "90919293949596979899";
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Static strings                                                                                 */
+/* ---------------------------------------------------------------------------------------------- */
+
+static const ZyanStringView STR_ADD = ZYAN_DEFINE_STRING_VIEW("+");
+static const ZyanStringView STR_SUB = ZYAN_DEFINE_STRING_VIEW("-");
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Internal macros                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Writes a terminating '\0' character at the end of the string data.
+ */
+#define ZYCORE_STRING_NULLTERMINATE(string) \
+      *(char*)((ZyanU8*)(string)->vector.data + (string)->vector.size - 1) = '\0';
+
+/* ============================================================================================== */
+/* Internal functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Decimal                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+#if defined(ZYAN_X86) || defined(ZYAN_ARM) || defined(ZYAN_EMSCRIPTEN) || defined(ZYAN_WASM) || defined(ZYAN_PPC)
+ZyanStatus ZyanStringAppendDecU32(ZyanString* string, ZyanU32 value, ZyanU8 padding_length)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    char buffer[ZYCORE_MAXCHARS_DEC_32];
+    char *buffer_end = &buffer[ZYCORE_MAXCHARS_DEC_32];
+    char *buffer_write_pointer = buffer_end;
+    while (value >= 100)
+    {
+        const ZyanU32 value_old = value;
+        buffer_write_pointer -= 2;
+        value /= 100;
+        ZYAN_MEMCPY(buffer_write_pointer, &DECIMAL_LOOKUP[(value_old - (value * 100)) * 2], 2);
+    }
+    buffer_write_pointer -= 2;
+    ZYAN_MEMCPY(buffer_write_pointer, &DECIMAL_LOOKUP[value * 2], 2);
+
+    const ZyanUSize offset_odd    = (ZyanUSize)(value < 10);
+    const ZyanUSize length_number = buffer_end - buffer_write_pointer - offset_odd;
+    const ZyanUSize length_total  = ZYAN_MAX(length_number, padding_length);
+    const ZyanUSize length_target = string->vector.size;
+
+    if (string->vector.size + length_total > string->vector.capacity)
+    {
+        ZYAN_CHECK(ZyanStringResize(string, string->vector.size + length_total - 1));
+    }
+
+    ZyanUSize offset_write = 0;
+    if (padding_length > length_number)
+    {
+        offset_write = padding_length - length_number;
+        ZYAN_MEMSET((char*)string->vector.data + length_target - 1, '0', offset_write);
+    }
+
+    ZYAN_MEMCPY((char*)string->vector.data + length_target + offset_write - 1,
+        buffer_write_pointer + offset_odd, length_number);
+    string->vector.size = length_target + length_total;
+    ZYCORE_STRING_NULLTERMINATE(string);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+#endif
+
+ZyanStatus ZyanStringAppendDecU64(ZyanString* string, ZyanU64 value, ZyanU8 padding_length)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    char buffer[ZYCORE_MAXCHARS_DEC_64];
+    char *buffer_end = &buffer[ZYCORE_MAXCHARS_DEC_64];
+    char *buffer_write_pointer = buffer_end;
+    while (value >= 100)
+    {
+        const ZyanU64 value_old = value;
+        buffer_write_pointer -= 2;
+        value /= 100;
+        ZYAN_MEMCPY(buffer_write_pointer, &DECIMAL_LOOKUP[(value_old - (value * 100)) * 2], 2);
+    }
+    buffer_write_pointer -= 2;
+    ZYAN_MEMCPY(buffer_write_pointer, &DECIMAL_LOOKUP[value * 2], 2);
+
+    const ZyanUSize offset_odd    = (ZyanUSize)(value < 10);
+    const ZyanUSize length_number = buffer_end - buffer_write_pointer - offset_odd;
+    const ZyanUSize length_total  = ZYAN_MAX(length_number, padding_length);
+    const ZyanUSize length_target = string->vector.size;
+
+    if (string->vector.size + length_total > string->vector.capacity)
+    {
+        ZYAN_CHECK(ZyanStringResize(string, string->vector.size + length_total - 1));
+    }
+
+    ZyanUSize offset_write = 0;
+    if (padding_length > length_number)
+    {
+        offset_write = padding_length - length_number;
+        ZYAN_MEMSET((char*)string->vector.data + length_target - 1, '0', offset_write);
+    }
+
+    ZYAN_MEMCPY((char*)string->vector.data + length_target + offset_write - 1,
+        buffer_write_pointer + offset_odd, length_number);
+    string->vector.size = length_target + length_total;
+    ZYCORE_STRING_NULLTERMINATE(string);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Hexadecimal                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+#if defined(ZYAN_X86) || defined(ZYAN_ARM) || defined(ZYAN_EMSCRIPTEN) || defined(ZYAN_WASM) || defined(ZYAN_PPC)
+ZyanStatus ZyanStringAppendHexU32(ZyanString* string, ZyanU32 value, ZyanU8 padding_length,
+    ZyanBool uppercase)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    const ZyanUSize len = string->vector.size;
+    ZyanUSize remaining = string->vector.capacity - string->vector.size;
+
+    if (remaining < (ZyanUSize)padding_length)
+    {
+        ZYAN_CHECK(ZyanStringResize(string, len + padding_length - 1));
+        remaining = padding_length;
+    }
+
+    if (!value)
+    {
+        const ZyanU8 n = (padding_length ? padding_length : 1);
+
+        if (remaining < (ZyanUSize)n)
+        {
+            ZYAN_CHECK(ZyanStringResize(string, string->vector.size + n - 1));
+        }
+
+        ZYAN_MEMSET((char*)string->vector.data + len - 1, '0', n);
+        string->vector.size = len + n;
+        ZYCORE_STRING_NULLTERMINATE(string);
+
+        return ZYAN_STATUS_SUCCESS;
+    }
+
+    ZyanU8 n = 0;
+    char* buffer = ZYAN_NULL;
+    for (ZyanI8 i = ZYCORE_MAXCHARS_HEX_32 - 1; i >= 0; --i)
+    {
+        const ZyanU8 v = (value >> i * 4) & 0x0F;
+        if (!n)
+        {
+            if (!v)
+            {
+                continue;
+            }
+            if (remaining <= (ZyanU8)i)
+            {
+                ZYAN_CHECK(ZyanStringResize(string, string->vector.size + i));
+            }
+            buffer = (char*)string->vector.data + len - 1;
+            if (padding_length > i)
+            {
+                n = padding_length - i - 1;
+                ZYAN_MEMSET(buffer, '0', n);
+            }
+        }
+        ZYAN_ASSERT(buffer);
+        if (uppercase)
+        {
+            buffer[n++] = "0123456789ABCDEF"[v];
+        } else
+        {
+            buffer[n++] = "0123456789abcdef"[v];
+        }
+    }
+    string->vector.size = len + n;
+    ZYCORE_STRING_NULLTERMINATE(string);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+#endif
+
+ZyanStatus ZyanStringAppendHexU64(ZyanString* string, ZyanU64 value, ZyanU8 padding_length,
+    ZyanBool uppercase)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    const ZyanUSize len = string->vector.size;
+    ZyanUSize remaining = string->vector.capacity - string->vector.size;
+
+    if (remaining < (ZyanUSize)padding_length)
+    {
+        ZYAN_CHECK(ZyanStringResize(string, len + padding_length - 1));
+        remaining = padding_length;
+    }
+
+    if (!value)
+    {
+        const ZyanU8 n = (padding_length ? padding_length : 1);
+
+        if (remaining < (ZyanUSize)n)
+        {
+            ZYAN_CHECK(ZyanStringResize(string, string->vector.size + n - 1));
+        }
+
+        ZYAN_MEMSET((char*)string->vector.data + len - 1, '0', n);
+        string->vector.size = len + n;
+        ZYCORE_STRING_NULLTERMINATE(string);
+
+        return ZYAN_STATUS_SUCCESS;
+    }
+
+    ZyanU8 n = 0;
+    char* buffer = ZYAN_NULL;
+    for (ZyanI8 i = ((value & 0xFFFFFFFF00000000) ?
+        ZYCORE_MAXCHARS_HEX_64 : ZYCORE_MAXCHARS_HEX_32) - 1; i >= 0; --i)
+    {
+        const ZyanU8 v = (value >> i * 4) & 0x0F;
+        if (!n)
+        {
+            if (!v)
+            {
+                continue;
+            }
+            if (remaining <= (ZyanU8)i)
+            {
+                ZYAN_CHECK(ZyanStringResize(string, string->vector.size + i));
+            }
+            buffer = (char*)string->vector.data + len - 1;
+            if (padding_length > i)
+            {
+                n = padding_length - i - 1;
+                ZYAN_MEMSET(buffer, '0', n);
+            }
+        }
+        ZYAN_ASSERT(buffer);
+        if (uppercase)
+        {
+            buffer[n++] = "0123456789ABCDEF"[v];
+        } else
+        {
+            buffer[n++] = "0123456789abcdef"[v];
+        }
+    }
+    string->vector.size = len + n;
+    ZYCORE_STRING_NULLTERMINATE(string);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Insertion                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+//ZyanStatus ZyanStringInsertFormat(ZyanString* string, ZyanUSize index, const char* format, ...)
+//{
+//
+//}
+//
+///* ---------------------------------------------------------------------------------------------- */
+//
+//ZyanStatus ZyanStringInsertDecU(ZyanString* string, ZyanUSize index, ZyanU64 value,
+//    ZyanUSize padding_length)
+//{
+//
+//}
+//
+//ZyanStatus ZyanStringInsertDecS(ZyanString* string, ZyanUSize index, ZyanI64 value,
+//    ZyanUSize padding_length, ZyanBool force_sign, const ZyanString* prefix)
+//{
+//
+//}
+//
+//ZyanStatus ZyanStringInsertHexU(ZyanString* string, ZyanUSize index, ZyanU64 value,
+//    ZyanUSize padding_length, ZyanBool uppercase)
+//{
+//
+//}
+//
+//ZyanStatus ZyanStringInsertHexS(ZyanString* string, ZyanUSize index, ZyanI64 value,
+//    ZyanUSize padding_length, ZyanBool uppercase, ZyanBool force_sign, const ZyanString* prefix)
+//{
+//
+//}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Appending                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+ZyanStatus ZyanStringAppendFormat(ZyanString* string, const char* format, ...)
+{
+    if (!string || !format)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanVAList arglist;
+    ZYAN_VA_START(arglist, format);
+
+    const ZyanUSize len = string->vector.size;
+
+    ZyanI32 w = ZYAN_VSNPRINTF((char*)string->vector.data + len - 1,
+        string->vector.capacity - len + 1, format, arglist);
+    if (w < 0)
+    {
+        ZYAN_VA_END(arglist);
+        return ZYAN_STATUS_FAILED;
+    }
+    if (w <= (ZyanI32)(string->vector.capacity - len))
+    {
+        string->vector.size = len + w;
+
+        ZYAN_VA_END(arglist);
+        return ZYAN_STATUS_SUCCESS;
+    }
+
+    // The remaining capacity was not sufficent to fit the formatted string. Trying to resize ..
+    const ZyanStatus status = ZyanStringResize(string, string->vector.size + w - 1);
+    if (!ZYAN_SUCCESS(status))
+    {
+        ZYAN_VA_END(arglist);
+        return status;
+    }
+
+    w = ZYAN_VSNPRINTF((char*)string->vector.data + len - 1,
+        string->vector.capacity - string->vector.size + 1, format, arglist);
+    if (w < 0)
+    {
+        ZYAN_VA_END(arglist);
+        return ZYAN_STATUS_FAILED;
+    }
+    ZYAN_ASSERT(w <= (ZyanI32)(string->vector.capacity - string->vector.size));
+
+    ZYAN_VA_END(arglist);
+    return ZYAN_STATUS_SUCCESS;
+}
+
+#endif // ZYAN_NO_LIBC
+
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanStringAppendDecU(ZyanString* string, ZyanU64 value, ZyanU8 padding_length)
+{
+#if defined(ZYAN_X64) || defined(ZYAN_AARCH64) || defined(ZYAN_PPC64) || defined(ZYAN_RISCV64) || defined(ZYAN_LOONGARCH)
+    return ZyanStringAppendDecU64(string, value, padding_length);
+#else
+    // Working with 64-bit values is slow on non 64-bit systems
+    if (value & 0xFFFFFFFF00000000)
+    {
+        return ZyanStringAppendDecU64(string, value, padding_length);
+    }
+    return ZyanStringAppendDecU32(string, (ZyanU32)value, padding_length);
+#endif
+}
+
+ZyanStatus ZyanStringAppendDecS(ZyanString* string, ZyanI64 value, ZyanU8 padding_length,
+    ZyanBool force_sign, const ZyanStringView* prefix)
+{
+    if (value < 0)
+    {
+        ZYAN_CHECK(ZyanStringAppend(string, &STR_SUB));
+        if (prefix)
+        {
+            ZYAN_CHECK(ZyanStringAppend(string, prefix));
+        }
+        return ZyanStringAppendDecU(string, ZyanAbsI64(value), padding_length);
+    }
+
+    if (force_sign)
+    {
+        ZYAN_ASSERT(value >= 0);
+        ZYAN_CHECK(ZyanStringAppend(string, &STR_ADD));
+    }
+
+    if (prefix)
+    {
+        ZYAN_CHECK(ZyanStringAppend(string, prefix));
+    }
+    return ZyanStringAppendDecU(string, value, padding_length);
+}
+
+ZyanStatus ZyanStringAppendHexU(ZyanString* string, ZyanU64 value, ZyanU8 padding_length,
+    ZyanBool uppercase)
+{
+#if defined(ZYAN_X64) || defined(ZYAN_AARCH64) || defined(ZYAN_PPC64) || defined(ZYAN_RISCV64) || defined(ZYAN_LOONGARCH)
+    return ZyanStringAppendHexU64(string, value, padding_length, uppercase);
+#else
+    // Working with 64-bit values is slow on non 64-bit systems
+    if (value & 0xFFFFFFFF00000000)
+    {
+        return ZyanStringAppendHexU64(string, value, padding_length, uppercase);
+    }
+    return ZyanStringAppendHexU32(string, (ZyanU32)value, padding_length, uppercase);
+#endif
+}
+
+ZyanStatus ZyanStringAppendHexS(ZyanString* string, ZyanI64 value, ZyanU8 padding_length,
+    ZyanBool uppercase, ZyanBool force_sign, const ZyanStringView* prefix)
+{
+    if (value < 0)
+    {
+        ZYAN_CHECK(ZyanStringAppend(string, &STR_SUB));
+        if (prefix)
+        {
+            ZYAN_CHECK(ZyanStringAppend(string, prefix));
+        }
+        return ZyanStringAppendHexU(string, ZyanAbsI64(value), padding_length, uppercase);
+    }
+
+    if (force_sign)
+    {
+        ZYAN_ASSERT(value >= 0);
+        ZYAN_CHECK(ZyanStringAppend(string, &STR_ADD));
+    }
+
+    if (prefix)
+    {
+        ZYAN_CHECK(ZyanStringAppend(string, prefix));
+    }
+    return ZyanStringAppendHexU(string, value, padding_length, uppercase);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
diff --git a/js/src/zydis/Zycore/Format.h b/js/src/zydis/Zycore/Format.h
new file mode 100644
index 0000000000..b14f8fcffb
--- /dev/null
+++ b/js/src/zydis/Zycore/Format.h
@@ -0,0 +1,285 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Provides helper functions for performant number to string conversion.
+ */
+
+#ifndef ZYCORE_FORMAT_H
+#define ZYCORE_FORMAT_H
+
+#include "zydis/Zycore/Status.h"
+#include "zydis/Zycore/String.h"
+#include "zydis/Zycore/Types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Helpers                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Get the absolute value of a 64 bit int.
+ *
+ * @param x The value to process.
+ * @return  The absolute, unsigned value.
+ *
+ * This gracefully deals with the special case of `x` being `INT_MAX`.
+ */
+ZYAN_INLINE ZyanU64 ZyanAbsI64(ZyanI64 x)
+{
+    // INT_MIN special case. Can't use the value directly because GCC thinks
+    // it's too big for an INT64 literal, however is perfectly happy to accept
+    // this expression. This is also hit INT64_MIN is defined in `stdint.h`.
+    if (x == (-0x7fffffffffffffff - 1))
+    {
+        return 0x8000000000000000u;
+    }
+
+    return (ZyanU64)(x < 0 ? -x : x);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Insertion                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Inserts formatted text in the destination string at the given `index`.
+ *
+ * @param   string  The destination string.
+ * @param   index   The insert index.
+ * @param   format  The format string.
+ * @param   ...     The format arguments.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYAN_PRINTF_ATTR(3, 4)
+ZYCORE_EXPORT ZyanStatus ZyanStringInsertFormat(ZyanString* string, ZyanUSize index,
+    const char* format, ...);
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Formats the given unsigned ordinal `value` to its decimal text-representation and
+ * inserts it to the `string`.
+ *
+ * @param   string          A pointer to the `ZyanString` instance.
+ * @param   index           The insert index.
+ * @param   value           The value.
+ * @param   padding_length  Padds the converted value with leading zeros, if the number of chars is
+ *                          less than the `padding_length`.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringInsertDecU(ZyanString* string, ZyanUSize index, ZyanU64 value,
+    ZyanU8 padding_length);
+
+/**
+ * Formats the given signed ordinal `value` to its decimal text-representation and
+ * inserts it to the `string`.
+ *
+ * @param   string          A pointer to the `ZyanString` instance.
+ * @param   index           The insert index.
+ * @param   value           The value.
+ * @param   padding_length  Padds the converted value with leading zeros, if the number of chars is
+ *                          less than the `padding_length`.
+ * @param   force_sign      Set `ZYAN_TRUE`, to force printing of the `+` sign for positive numbers.
+ * @param   prefix          The string to use as prefix or `ZYAN_NULL`, if not needed.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringInsertDecS(ZyanString* string, ZyanUSize index, ZyanI64 value,
+    ZyanU8 padding_length, ZyanBool force_sign, const ZyanString* prefix);
+
+/**
+ * Formats the given unsigned ordinal `value` to its hexadecimal text-representation and
+ * inserts it to the `string`.
+ *
+ * @param   string          A pointer to the `ZyanString` instance.
+ * @param   index           The insert index.
+ * @param   value           The value.
+ * @param   padding_length  Padds the converted value with leading zeros, if the number of chars is
+ *                          less than the `padding_length`.
+ * @param   uppercase       Set `ZYAN_TRUE` to use uppercase letters ('A'-'F') instead of lowercase
+ *                          ones ('a'-'f').
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringInsertHexU(ZyanString* string, ZyanUSize index, ZyanU64 value,
+    ZyanU8 padding_length, ZyanBool uppercase);
+
+/**
+ * Formats the given signed ordinal `value` to its hexadecimal text-representation and
+ * inserts it to the `string`.
+ *
+ * @param   string          A pointer to the `ZyanString` instance.
+ * @param   index           The insert index.
+ * @param   value           The value.
+ * @param   padding_length  Padds the converted value with leading zeros, if the number of chars is
+ *                          less than the `padding_length`.
+ * @param   uppercase       Set `ZYAN_TRUE` to use uppercase letters ('A'-'F') instead of lowercase
+ *                          ones ('a'-'f').
+ * @param   force_sign      Set `ZYAN_TRUE`, to force printing of the `+` sign for positive numbers.
+ * @param   prefix          The string to use as prefix or `ZYAN_NULL`, if not needed.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringInsertHexS(ZyanString* string, ZyanUSize index, ZyanI64 value,
+    ZyanU8 padding_length, ZyanBool uppercase, ZyanBool force_sign, const ZyanString* prefix);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Appending                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+/**
+ * Appends formatted text to the destination string.
+ *
+ * @param   string  The destination string.
+ * @param   format  The format string.
+ * @param   ...     The format arguments.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYAN_PRINTF_ATTR(2, 3)
+ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanStatus ZyanStringAppendFormat(
+    ZyanString* string, const char* format, ...);
+
+#endif // ZYAN_NO_LIBC
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Formats the given unsigned ordinal `value` to its decimal text-representation and
+ * appends it to the `string`.
+ *
+ * @param   string          A pointer to the `ZyanString` instance.
+ * @param   value           The value.
+ * @param   padding_length  Padds the converted value with leading zeros, if the number of chars is
+ *                          less than the `padding_length`.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringAppendDecU(ZyanString* string, ZyanU64 value,
+    ZyanU8 padding_length);
+
+/**
+ * Formats the given signed ordinal `value` to its decimal text-representation and
+ * appends it to the `string`.
+ *
+ * @param   string          A pointer to the `ZyanString` instance.
+ * @param   value           The value.
+ * @param   padding_length  Padds the converted value with leading zeros, if the number of chars is
+ *                          less than the `padding_length`.
+ * @param   force_sign      Set `ZYAN_TRUE`, to force printing of the `+` sign for positive numbers.
+ * @param   prefix          The string to use as prefix or `ZYAN_NULL`, if not needed.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringAppendDecS(ZyanString* string, ZyanI64 value,
+    ZyanU8 padding_length, ZyanBool force_sign, const ZyanStringView* prefix);
+
+/**
+ * Formats the given unsigned ordinal `value` to its hexadecimal text-representation and
+ * appends it to the `string`.
+ *
+ * @param   string          A pointer to the `ZyanString` instance.
+ * @param   value           The value.
+ * @param   padding_length  Padds the converted value with leading zeros, if the number of chars is
+ *                          less than the `padding_length`.
+ * @param   uppercase       Set `ZYAN_TRUE` to use uppercase letters ('A'-'F') instead of lowercase
+ *                          ones ('a'-'f').
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringAppendHexU(ZyanString* string, ZyanU64 value,
+    ZyanU8 padding_length, ZyanBool uppercase);
+
+/**
+ * Formats the given signed ordinal `value` to its hexadecimal text-representation and
+ * appends it to the `string`.
+ *
+ * @param   string          A pointer to the `ZyanString` instance.
+ * @param   value           The value.
+ * @param   padding_length  Padds the converted value with leading zeros, if the number of chars is
+ *                          less than the `padding_length`.
+ * @param   uppercase       Set `ZYAN_TRUE` to use uppercase letters ('A'-'F') instead of lowercase
+ *                          ones ('a'-'f').
+ * @param   force_sign      Set `ZYAN_TRUE`, to force printing of the `+` sign for positive numbers.
+ * @param   prefix          The string to use as prefix or `ZYAN_NULL`, if not needed.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringAppendHexS(ZyanString* string, ZyanI64 value,
+    ZyanU8 padding_length, ZyanBool uppercase, ZyanBool force_sign, const ZyanStringView* prefix);
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // ZYCORE_FORMAT_H
diff --git a/js/src/zydis/Zycore/Internal/AtomicGNU.h b/js/src/zydis/Zycore/Internal/AtomicGNU.h
new file mode 100644
index 0000000000..31fe824a02
--- /dev/null
+++ b/js/src/zydis/Zycore/Internal/AtomicGNU.h
@@ -0,0 +1,117 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zyan-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#ifndef ZYCORE_ATOMIC_GNU_H
+#define ZYCORE_ATOMIC_GNU_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "zydis/Zycore/Defines.h"
+#include "zydis/Zycore/Types.h"
+
+/* ============================================================================================== */
+/* Functions                                                                                      */
+/* ============================================================================================== */
+
+#if defined(ZYAN_CLANG) || defined(ZYAN_GCC) || defined(ZYAN_ICC)
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Pointer sized                                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZYAN_INLINE ZyanUPointer ZyanAtomicCompareExchange(ZyanAtomicPointer* destination,
+    ZyanUPointer comparand, ZyanUPointer value)
+{
+    return (ZyanUPointer)(__sync_val_compare_and_swap(
+        &destination->value, (void*)comparand, (void*)value, &destination->value));
+}
+
+ZYAN_INLINE ZyanUPointer ZyanAtomicIncrement(ZyanAtomicPointer* destination)
+{
+    return (ZyanUPointer)(__sync_fetch_and_add(&destination->value, (void*)1,
+        &destination->value)) + 1;
+}
+
+ZYAN_INLINE ZyanUPointer ZyanAtomicDecrement(ZyanAtomicPointer* destination)
+{
+    return (ZyanUPointer)(__sync_sub_and_fetch(&destination->value, (void*)1, &destination->value));
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* 32-bit                                                                                         */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZYAN_INLINE ZyanU32 ZyanAtomicCompareExchange32(ZyanAtomic32* destination,
+    ZyanU32 comparand, ZyanU32 value)
+{
+    return (ZyanU32)(__sync_val_compare_and_swap(&destination->value, comparand, value, 
+        &destination->value));
+}
+
+ZYAN_INLINE ZyanU32 ZyanAtomicIncrement32(ZyanAtomic32* destination)
+{
+    return (ZyanU32)(__sync_fetch_and_add(&destination->value, 1, &destination->value)) + 1;
+}
+
+ZYAN_INLINE ZyanU32 ZyanAtomicDecrement32(ZyanAtomic32* destination)
+{
+    return (ZyanU32)(__sync_sub_and_fetch(&destination->value, 1, &destination->value));
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* 64-bit                                                                                         */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZYAN_INLINE ZyanU64 ZyanAtomicCompareExchange64(ZyanAtomic64* destination,
+    ZyanU64 comparand, ZyanU64 value)
+{
+    return (ZyanU64)(__sync_val_compare_and_swap(&destination->value, comparand, value, 
+        &destination->value));
+}
+
+ZYAN_INLINE ZyanU64 ZyanAtomicIncrement64(ZyanAtomic64* destination)
+{
+    return (ZyanU64)(__sync_fetch_and_add(&destination->value, 1, &destination->value)) + 1;
+}
+
+ZYAN_INLINE ZyanU64 ZyanAtomicDecrement64(ZyanAtomic64* destination)
+{
+    return (ZyanU64)(__sync_sub_and_fetch(&destination->value, 1, &destination->value));
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+#endif
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_ATOMIC_GNU_H */
diff --git a/js/src/zydis/Zycore/Internal/AtomicMSVC.h b/js/src/zydis/Zycore/Internal/AtomicMSVC.h
new file mode 100644
index 0000000000..ec17918dec
--- /dev/null
+++ b/js/src/zydis/Zycore/Internal/AtomicMSVC.h
@@ -0,0 +1,141 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zyan-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#ifndef ZYCORE_ATOMIC_MSVC_H
+#define ZYCORE_ATOMIC_MSVC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <Windows.h>
+
+#include "zydis/Zycore/Defines.h"
+#include "zydis/Zycore/Types.h"
+
+/* ============================================================================================== */
+/* Functions                                                                                      */
+/* ============================================================================================== */
+
+#if defined(ZYAN_MSVC)
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Pointer sized                                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+#if defined(ZYAN_X86)
+
+static ZYAN_INLINE ZyanUPointer ZyanAtomicCompareExchange(ZyanAtomicPointer* destination,
+    ZyanUPointer comparand, ZyanUPointer value)
+{
+    return (ZyanUPointer)ZyanAtomicCompareExchange32((ZyanAtomic32*)destination, comparand, value);
+}
+
+static ZYAN_INLINE ZyanUPointer ZyanAtomicIncrement(ZyanAtomicPointer* destination)
+{
+    return (ZyanUPointer)ZyanAtomicIncrement32((ZyanAtomic32*)destination);
+}
+
+static ZYAN_INLINE ZyanUPointer ZyanAtomicDecrement(ZyanAtomicPointer* destination)
+{
+    return (ZyanUPointer)ZyanAtomicDecrement32((ZyanAtomic32*)destination);
+}
+
+#elif defined(ZYAN_X64)
+
+static ZYAN_INLINE ZyanUPointer ZyanAtomicCompareExchange(ZyanAtomicPointer* destination,
+    ZyanUPointer comparand, ZyanUPointer value)
+{
+    return (ZyanUPointer)ZyanAtomicCompareExchange64((ZyanAtomic64*)destination, comparand, value);
+}
+
+static ZYAN_INLINE ZyanUPointer ZyanAtomicIncrement(ZyanAtomicPointer* destination)
+{
+    return (ZyanUPointer)ZyanAtomicIncrement64((ZyanAtomic64*)destination);
+}
+
+static ZYAN_INLINE ZyanUPointer ZyanAtomicDecrement(ZyanAtomicPointer* destination)
+{
+    return (ZyanUPointer)ZyanAtomicDecrement64((ZyanAtomic64*)destination);
+}
+
+#else
+#   error "Unsupported architecture detected"
+#endif
+
+/* ---------------------------------------------------------------------------------------------- */
+/* 32-bit                                                                                         */
+/* ---------------------------------------------------------------------------------------------- */
+
+static ZYAN_INLINE ZyanU32 ZyanAtomicCompareExchange32(ZyanAtomic32* destination,
+    ZyanU32 comparand, ZyanU32 value)
+{
+    return (ZyanU32)(_InterlockedCompareExchange((volatile LONG*)&(destination->value),
+        (LONG)value, (LONG)comparand));
+}
+
+static ZYAN_INLINE ZyanU32 ZyanAtomicIncrement32(ZyanAtomic32* destination)
+{
+    return (ZyanU32)(_InterlockedIncrement((volatile LONG*)&(destination->value)));
+}
+
+static ZYAN_INLINE ZyanU32 ZyanAtomicDecrement32(ZyanAtomic32* destination)
+{
+    return (ZyanU32)(_InterlockedDecrement((volatile LONG*)&(destination->value)));
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* 64-bit                                                                                         */
+/* ---------------------------------------------------------------------------------------------- */
+
+static ZYAN_INLINE ZyanU64 ZyanAtomicCompareExchange64(ZyanAtomic64* destination,
+    ZyanU64 comparand, ZyanU64 value)
+{
+    return (ZyanU64)(_InterlockedCompareExchange64((volatile LONG64*)&(destination->value),
+        (LONG64)value, (LONG64)comparand));
+}
+
+static ZYAN_INLINE ZyanU64 ZyanAtomicIncrement64(ZyanAtomic64* destination)
+{
+    return (ZyanU64)(_InterlockedIncrement64((volatile LONG64*)&(destination->value)));
+}
+
+static ZYAN_INLINE ZyanU64 ZyanAtomicDecrement64(ZyanAtomic64* destination)
+{
+    return (ZyanU64)(_InterlockedDecrement64((volatile LONG64*)&(destination->value)));
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+#endif
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_ATOMIC_MSVC_H */
diff --git a/js/src/zydis/Zycore/LICENSE b/js/src/zydis/Zycore/LICENSE
new file mode 100644
index 0000000000..4d9069aee5
--- /dev/null
+++ b/js/src/zydis/Zycore/LICENSE
@@ -0,0 +1,23 @@
+The MIT License (MIT)
+
+Copyright (c) 2018-2020 Florian Bernd
+Copyright (c) 2018-2020 Joel Höner
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/js/src/zydis/Zycore/LibC.h b/js/src/zydis/Zycore/LibC.h
new file mode 100644
index 0000000000..385b96a67f
--- /dev/null
+++ b/js/src/zydis/Zycore/LibC.h
@@ -0,0 +1,512 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd, Joel Hoener
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Provides a simple LibC abstraction and fallback routines.
+ */
+
+#ifndef ZYCORE_LIBC_H
+#define ZYCORE_LIBC_H
+
+#ifndef ZYAN_CUSTOM_LIBC
+
+// Include a custom LibC header and define `ZYAN_CUSTOM_LIBC` to provide your own LibC
+// replacement functions
+
+#ifndef ZYAN_NO_LIBC
+
+/* ============================================================================================== */
+/* LibC is available                                                                              */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* errno.h                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+#include <errno.h>
+
+#define ZYAN_ERRNO  errno
+
+/* ---------------------------------------------------------------------------------------------- */
+/* stdarg.h                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+#include <stdarg.h>
+
+/**
+ * Defines the `ZyanVAList` datatype.
+ */
+typedef va_list ZyanVAList;
+
+#define ZYAN_VA_START               va_start
+#define ZYAN_VA_ARG                 va_arg
+#define ZYAN_VA_END                 va_end
+#define ZYAN_VA_COPY(dest, source)  va_copy((dest), (source))
+
+/* ---------------------------------------------------------------------------------------------- */
+/* stdio.h                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+#include <stdio.h>
+
+#define ZYAN_FPUTS      fputs
+#define ZYAN_FPUTC      fputc
+#define ZYAN_FPRINTF    fprintf
+#define ZYAN_PRINTF     printf
+#define ZYAN_PUTC       putc
+#define ZYAN_PUTS       puts
+#define ZYAN_SCANF      scanf
+#define ZYAN_SSCANF     sscanf
+#define ZYAN_VSNPRINTF  vsnprintf
+
+/**
+ * Defines the `ZyanFile` datatype.
+ */
+typedef FILE ZyanFile;
+
+#define ZYAN_STDIN      stdin
+#define ZYAN_STDOUT     stdout
+#define ZYAN_STDERR     stderr
+
+/* ---------------------------------------------------------------------------------------------- */
+/* stdlib.h                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+#include <stdlib.h>
+#define ZYAN_CALLOC     calloc
+#define ZYAN_FREE       free
+#define ZYAN_GETENV     getenv
+#define ZYAN_MALLOC     malloc
+#define ZYAN_REALLOC    realloc
+
+/* ---------------------------------------------------------------------------------------------- */
+/* string.h                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+#include <string.h>
+#define ZYAN_MEMCHR     memchr
+#define ZYAN_MEMCMP     memcmp
+#define ZYAN_MEMCPY     memcpy
+#define ZYAN_MEMMOVE    memmove
+#define ZYAN_MEMSET     memset
+#define ZYAN_STRCAT     strcat
+#define ZYAN_STRCHR     strchr
+#define ZYAN_STRCMP     strcmp
+#define ZYAN_STRCOLL    strcoll
+#define ZYAN_STRCPY     strcpy
+#define ZYAN_STRCSPN    strcspn
+#define ZYAN_STRLEN     strlen
+#define ZYAN_STRNCAT    strncat
+#define ZYAN_STRNCMP    strncmp
+#define ZYAN_STRNCPY    strncpy
+#define ZYAN_STRPBRK    strpbrk
+#define ZYAN_STRRCHR    strrchr
+#define ZYAN_STRSPN     strspn
+#define ZYAN_STRSTR     strstr
+#define ZYAN_STRTOK     strtok
+#define ZYAN_STRXFRM    strxfrm
+
+/* ---------------------------------------------------------------------------------------------- */
+
+#else  // if ZYAN_NO_LIBC
+
+/* ============================================================================================== */
+/* No LibC available, use our own functions                                                       */
+/* ============================================================================================== */
+
+#include "zydis/Zycore/Defines.h"
+#include "zydis/Zycore/Types.h"
+
+/*
+ * These implementations are by no means optimized and will be outperformed by pretty much any
+ * libc implementation out there. We do not aim towards providing competetive implementations here,
+ * but towards providing a last resort fallback for environments without a working libc.
+ */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* stdarg.h                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+#if defined(ZYAN_MSVC) || defined(ZYAN_ICC)
+
+/**
+ * Defines the `ZyanVAList` datatype.
+ */
+typedef char* ZyanVAList;
+
+#   define ZYAN_VA_START __crt_va_start
+#   define ZYAN_VA_ARG   __crt_va_arg
+#   define ZYAN_VA_END   __crt_va_end
+#   define ZYAN_VA_COPY(destination, source) ((destination) = (source))
+
+#elif defined(ZYAN_GNUC)
+
+/**
+ * Defines the `ZyanVAList` datatype.
+ */
+typedef __builtin_va_list  ZyanVAList;
+
+#   define ZYAN_VA_START(v, l)  __builtin_va_start(v, l)
+#   define ZYAN_VA_END(v)       __builtin_va_end(v)
+#   define ZYAN_VA_ARG(v, l)    __builtin_va_arg(v, l)
+#   define ZYAN_VA_COPY(d, s)   __builtin_va_copy(d, s)
+
+#else
+#   error "Unsupported compiler for no-libc mode."
+#endif
+
+/* ---------------------------------------------------------------------------------------------- */
+/* stdio.h                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+// ZYAN_INLINE int ZYAN_VSNPRINTF (char* const buffer, ZyanUSize const count,
+//     char const* const format, ZyanVAList args)
+// {
+//      // We cant provide a fallback implementation for this function
+//     ZYAN_UNUSED(buffer);
+//     ZYAN_UNUSED(count);
+//     ZYAN_UNUSED(format);
+//     ZYAN_UNUSED(args);
+//     return ZYAN_NULL;
+// }
+
+/* ---------------------------------------------------------------------------------------------- */
+/* stdlib.h                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+// ZYAN_INLINE void* ZYAN_CALLOC(ZyanUSize nitems, ZyanUSize size)
+// {
+//      // We cant provide a fallback implementation for this function
+//     ZYAN_UNUSED(nitems);
+//     ZYAN_UNUSED(size);
+//     return ZYAN_NULL;
+// }
+//
+// ZYAN_INLINE void ZYAN_FREE(void *p)
+// {
+//      // We cant provide a fallback implementation for this function
+//     ZYAN_UNUSED(p);
+// }
+//
+// ZYAN_INLINE void* ZYAN_MALLOC(ZyanUSize n)
+// {
+//     // We cant provide a fallback implementation for this function
+//     ZYAN_UNUSED(n);
+//     return ZYAN_NULL;
+// }
+//
+// ZYAN_INLINE void* ZYAN_REALLOC(void* p, ZyanUSize n)
+// {
+//      // We cant provide a fallback implementation for this function
+//     ZYAN_UNUSED(p);
+//     ZYAN_UNUSED(n);
+//     return ZYAN_NULL;
+// }
+
+/* ---------------------------------------------------------------------------------------------- */
+/* string.h                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZYAN_INLINE void* ZYAN_MEMCHR(const void* str, int c, ZyanUSize n)
+{
+    const ZyanU8* p = (ZyanU8*)str;
+    while (n--)
+    {
+        if (*p != (ZyanU8)c)
+        {
+            p++;
+        } else
+        {
+            return (void*)p;
+        }
+    }
+    return 0;
+}
+
+ZYAN_INLINE int ZYAN_MEMCMP(const void* s1, const void* s2, ZyanUSize n)
+{
+    const ZyanU8* p1 = s1, *p2 = s2;
+    while (n--)
+    {
+        if (*p1 != *p2)
+        {
+            return *p1 - *p2;
+        }
+        p1++, p2++;
+    }
+    return 0;
+}
+
+ZYAN_INLINE void* ZYAN_MEMCPY(void* dst, const void* src, ZyanUSize n)
+{
+    volatile ZyanU8* dp = dst;
+    const ZyanU8* sp = src;
+    while (n--)
+    {
+        *dp++ = *sp++;
+    }
+    return dst;
+}
+
+ZYAN_INLINE void* ZYAN_MEMMOVE(void* dst, const void* src, ZyanUSize n)
+{
+    volatile ZyanU8* pd = dst;
+    const ZyanU8* ps = src;
+    if (ps < pd)
+    {
+        for (pd += n, ps += n; n--;)
+        {
+            *--pd = *--ps;
+        }
+    } else
+    {
+        while (n--)
+        {
+            *pd++ = *ps++;
+        }
+    }
+    return dst;
+}
+
+ZYAN_INLINE void* ZYAN_MEMSET(void* dst, int val, ZyanUSize n)
+{
+    volatile ZyanU8* p = dst;
+    while (n--)
+    {
+        *p++ = (unsigned char)val;
+    }
+    return dst;
+}
+
+ZYAN_INLINE char* ZYAN_STRCAT(char* dest, const char* src)
+{
+    char* ret = dest;
+    while (*dest)
+    {
+        dest++;
+    }
+    while ((*dest++ = *src++));
+    return ret;
+}
+
+ZYAN_INLINE char* ZYAN_STRCHR(const char* s, int c)
+{
+    while (*s != (char)c)
+    {
+        if (!*s++)
+        {
+            return 0;
+        }
+    }
+    return (char*)s;
+}
+
+ZYAN_INLINE int ZYAN_STRCMP(const char* s1, const char* s2)
+{
+    while (*s1 && (*s1 == *s2))
+    {
+        s1++, s2++;
+    }
+    return *(const ZyanU8*)s1 - *(const ZyanU8*)s2;
+}
+
+ZYAN_INLINE int ZYAN_STRCOLL(const char *s1, const char *s2)
+{
+    // TODO: Implement
+
+    ZYAN_UNUSED(s1);
+    ZYAN_UNUSED(s2);
+
+    return 0;
+}
+
+ZYAN_INLINE char* ZYAN_STRCPY(char* dest, const char* src)
+{
+    char* ret = dest;
+    while ((*dest++ = *src++));
+    return ret;
+}
+
+ZYAN_INLINE ZyanUSize ZYAN_STRCSPN(const char *s1, const char *s2)
+{
+    ZyanUSize ret = 0;
+    while (*s1)
+    {
+        if (ZYAN_STRCHR(s2, *s1))
+        {
+            return ret;
+        }
+        s1++, ret++;
+    }
+    return ret;
+}
+
+ZYAN_INLINE ZyanUSize ZYAN_STRLEN(const char* str)
+{
+    const char* p = str;
+    while (*str)
+    {
+        ++str;
+    }
+    return str - p;
+}
+
+ZYAN_INLINE char* ZYAN_STRNCAT(char* dest, const char* src, ZyanUSize n)
+{
+    char* ret = dest;
+    while (*dest)
+    {
+        dest++;
+    }
+    while (n--)
+    {
+        if (!(*dest++ = *src++))
+        {
+            return ret;
+        }
+    }
+    *dest = 0;
+    return ret;
+}
+
+ZYAN_INLINE int ZYAN_STRNCMP(const char* s1, const char* s2, ZyanUSize n)
+{
+    while (n--)
+    {
+        if (*s1++ != *s2++)
+        {
+            return *(unsigned char*)(s1 - 1) - *(unsigned char*)(s2 - 1);
+        }
+    }
+    return 0;
+}
+
+ZYAN_INLINE char* ZYAN_STRNCPY(char* dest, const char* src, ZyanUSize n)
+{
+    char* ret = dest;
+    do
+    {
+        if (!n--)
+        {
+            return ret;
+        }
+    } while ((*dest++ = *src++));
+    while (n--)
+    {
+        *dest++ = 0;
+    }
+    return ret;
+}
+
+ZYAN_INLINE char* ZYAN_STRPBRK(const char* s1, const char* s2)
+{
+    while (*s1)
+    {
+        if(ZYAN_STRCHR(s2, *s1++))
+        {
+            return (char*)--s1;
+        }
+    }
+    return 0;
+}
+
+ZYAN_INLINE char* ZYAN_STRRCHR(const char* s, int c)
+{
+    char* ret = 0;
+    do
+    {
+        if (*s == (char)c)
+        {
+            ret = (char*)s;
+        }
+    } while (*s++);
+    return ret;
+}
+
+ZYAN_INLINE ZyanUSize ZYAN_STRSPN(const char* s1, const char* s2)
+{
+    ZyanUSize ret = 0;
+    while (*s1 && ZYAN_STRCHR(s2, *s1++))
+    {
+        ret++;
+    }
+    return ret;
+}
+
+ZYAN_INLINE char* ZYAN_STRSTR(const char* s1, const char* s2)
+{
+    const ZyanUSize n = ZYAN_STRLEN(s2);
+    while (*s1)
+    {
+        if (!ZYAN_MEMCMP(s1++, s2, n))
+        {
+            return (char*)(s1 - 1);
+        }
+    }
+    return 0;
+}
+
+ZYAN_INLINE char* ZYAN_STRTOK(char* str, const char* delim)
+{
+    static char* p = 0;
+    if (str)
+    {
+        p = str;
+    } else
+    if (!p)
+    {
+        return 0;
+    }
+    str = p + ZYAN_STRSPN(p, delim);
+    p = str + ZYAN_STRCSPN(str, delim);
+    if (p == str)
+    {
+        return p = 0;
+    }
+    p = *p ? *p = 0, p + 1 : 0;
+    return str;
+}
+
+ZYAN_INLINE ZyanUSize ZYAN_STRXFRM(char* dest, const char* src, ZyanUSize n)
+{
+    const ZyanUSize n2 = ZYAN_STRLEN(src);
+    if (n > n2)
+    {
+        ZYAN_STRCPY(dest, src);
+    }
+    return n2;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+#endif
+
+#endif
+
+/* ============================================================================================== */
+
+#endif /* ZYCORE_LIBC_H */
diff --git a/js/src/zydis/Zycore/List.c b/js/src/zydis/Zycore/List.c
new file mode 100644
index 0000000000..8e4f9f96b2
--- /dev/null
+++ b/js/src/zydis/Zycore/List.c
@@ -0,0 +1,673 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#include "zydis/Zycore/LibC.h"
+#include "zydis/Zycore/List.h"
+
+/* ============================================================================================== */
+/* Internal macros                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Returns a pointer to the data of the given `node`.
+ *
+ * @param   node    A pointer to the `ZyanNodeData` struct.
+ *
+ * @return  A pointer to the data of the given `node`.
+ */
+#define ZYCORE_LIST_GET_NODE_DATA(node) \
+    ((void*)(node + 1))
+
+/* ============================================================================================== */
+/* Internal functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Helper functions                                                                               */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Allocates memory for a new list node.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ * @param   node    Receives a pointer to the new `ZyanListNode` struct.
+ *
+ * @return  A zyan status code.
+ */
+static ZyanStatus ZyanListAllocateNode(ZyanList* list, ZyanListNode** node)
+{
+    ZYAN_ASSERT(list);
+    ZYAN_ASSERT(node);
+
+    const ZyanBool is_dynamic = (list->allocator != ZYAN_NULL);
+    if (is_dynamic)
+    {
+        ZYAN_ASSERT(list->allocator->allocate);
+        ZYAN_CHECK(list->allocator->allocate(list->allocator, (void**)node,
+            sizeof(ZyanListNode) + list->element_size, 1));
+    } else
+    {
+        if (list->first_unused)
+        {
+            *node = list->first_unused;
+            list->first_unused = (*node)->next;
+        } else
+        {
+            const ZyanUSize size = list->size * (sizeof(ZyanListNode) + list->element_size);
+            if (size + (sizeof(ZyanListNode) + list->element_size) > list->capacity)
+            {
+                return ZYAN_STATUS_INSUFFICIENT_BUFFER_SIZE;
+            }
+
+            *node = (ZyanListNode*)((ZyanU8*)list->buffer + size);
+        }
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/**
+ * Frees memory of a node.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ * @param   node    A pointer to the `ZyanListNode` struct.
+ *
+ * @return  A zyan status code.
+ */
+static ZyanStatus ZyanListDeallocateNode(ZyanList* list, ZyanListNode* node)
+{
+    ZYAN_ASSERT(list);
+    ZYAN_ASSERT(node);
+
+    const ZyanBool is_dynamic = (list->allocator != ZYAN_NULL);
+    if (is_dynamic)
+    {
+        ZYAN_ASSERT(list->allocator->deallocate);
+        ZYAN_CHECK(list->allocator->deallocate(list->allocator, (void*)node,
+            sizeof(ZyanListNode) + list->element_size, 1));
+    } else
+    {
+        node->next = list->first_unused;
+        list->first_unused = node;
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Constructor and destructor                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+ZYAN_REQUIRES_LIBC ZyanStatus ZyanListInit(ZyanList* list, ZyanUSize element_size,
+    ZyanMemberProcedure destructor)
+{
+    return ZyanListInitEx(list, element_size, destructor, ZyanAllocatorDefault());
+}
+
+#endif // ZYAN_NO_LIBC
+
+ZyanStatus ZyanListInitEx(ZyanList* list, ZyanUSize element_size, ZyanMemberProcedure destructor,
+    ZyanAllocator* allocator)
+{
+    if (!list || !element_size || !allocator)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    list->allocator     = allocator;
+    list->size          = 0;
+    list->element_size  = element_size;
+    list->destructor    = destructor;
+    list->head          = ZYAN_NULL;
+    list->tail          = ZYAN_NULL;
+    list->buffer        = ZYAN_NULL;
+    list->capacity      = 0;
+    list->first_unused  = ZYAN_NULL;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanListInitCustomBuffer(ZyanList* list, ZyanUSize element_size,
+    ZyanMemberProcedure destructor, void* buffer, ZyanUSize capacity)
+{
+    if (!list || !element_size || !buffer || !capacity)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    list->allocator    = ZYAN_NULL;
+    list->size         = 0;
+    list->element_size = element_size;
+    list->destructor   = destructor;
+    list->head         = ZYAN_NULL;
+    list->tail         = ZYAN_NULL;
+    list->buffer       = buffer;
+    list->capacity     = capacity;
+    list->first_unused = ZYAN_NULL;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanListDestroy(ZyanList* list)
+{
+    if (!list)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZYAN_ASSERT(list->element_size);
+
+    const ZyanBool is_dynamic = (list->allocator != ZYAN_NULL);
+    ZyanListNode* node = (is_dynamic || list->destructor) ? list->head : ZYAN_NULL;
+    while (node)
+    {
+        if (list->destructor)
+        {
+            list->destructor(ZYCORE_LIST_GET_NODE_DATA(node));
+        }
+
+        ZyanListNode* const next = node->next;
+
+        if (is_dynamic)
+        {
+            ZYAN_CHECK(list->allocator->deallocate(list->allocator, node,
+                sizeof(ZyanListNode) + list->element_size, 1));
+        }
+
+        node = next;
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Duplication                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Item access                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanListGetHeadNode(const ZyanList* list, const ZyanListNode** node)
+{
+    if (!list)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *node = list->head;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanListGetTailNode(const ZyanList* list, const ZyanListNode** node)
+{
+    if (!list)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *node = list->tail;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanListGetPrevNode(const ZyanListNode** node)
+{
+    if (!node || !*node)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *node = (*node)->prev;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanListGetNextNode(const ZyanListNode** node)
+{
+    if (!node || !*node)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *node = (*node)->next;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+const void* ZyanListGetNodeData(const ZyanListNode* node)
+{
+    if (!node)
+    {
+        return ZYAN_NULL;
+    }
+
+    return (const void*)ZYCORE_LIST_GET_NODE_DATA(node);
+}
+
+ZyanStatus ZyanListGetNodeDataEx(const ZyanListNode* node, const void** value)
+{
+    if (!node)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *value = (const void*)ZYCORE_LIST_GET_NODE_DATA(node);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+void* ZyanListGetNodeDataMutable(const ZyanListNode* node)
+{
+    if (!node)
+    {
+        return ZYAN_NULL;
+    }
+
+    return ZYCORE_LIST_GET_NODE_DATA(node);
+}
+
+ZyanStatus ZyanListGetNodeDataMutableEx(const ZyanListNode* node, void** value)
+{
+    if (!node)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *value = ZYCORE_LIST_GET_NODE_DATA(node);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanListSetNodeData(const ZyanList* list, const ZyanListNode* node, const void* value)
+{
+    if (!list || !node || !value)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    if (list->destructor)
+    {
+        list->destructor(ZYCORE_LIST_GET_NODE_DATA(node));
+    }
+
+    ZYAN_ASSERT(list->element_size);
+    ZYAN_MEMCPY(ZYCORE_LIST_GET_NODE_DATA(node), value, list->element_size);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Insertion                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanListPushBack(ZyanList* list, const void* item)
+{
+    if (!list || !item)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanListNode* node;
+    ZYAN_CHECK(ZyanListAllocateNode(list, &node));
+    node->prev = list->tail;
+    node->next = ZYAN_NULL;
+
+    ZYAN_MEMCPY(ZYCORE_LIST_GET_NODE_DATA(node), item, list->element_size);
+
+    if (!list->head)
+    {
+        list->head = node;
+        list->tail = node;
+    } else
+    {
+        list->tail->next = node;
+        list->tail = node;
+    }
+    ++list->size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanListPushFront(ZyanList* list, const void* item)
+{
+    if (!list || !item)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanListNode* node;
+    ZYAN_CHECK(ZyanListAllocateNode(list, &node));
+    node->prev = ZYAN_NULL;
+    node->next = list->head;
+
+    ZYAN_MEMCPY(ZYCORE_LIST_GET_NODE_DATA(node), item, list->element_size);
+
+    if (!list->head)
+    {
+        list->head = node;
+        list->tail = node;
+    } else
+    {
+        list->head->prev= node;
+        list->head = node;
+    }
+    ++list->size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanListEmplaceBack(ZyanList* list, void** item, ZyanMemberFunction constructor)
+{
+    if (!list || !item)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanListNode* node;
+    ZYAN_CHECK(ZyanListAllocateNode(list, &node));
+    node->prev = list->tail;
+    node->next = ZYAN_NULL;
+
+    *item = ZYCORE_LIST_GET_NODE_DATA(node);
+    if (constructor)
+    {
+        constructor(*item);
+    }
+
+    if (!list->head)
+    {
+        list->head = node;
+        list->tail = node;
+    } else
+    {
+        list->tail->next = node;
+        list->tail = node;
+    }
+    ++list->size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanListEmplaceFront(ZyanList* list, void** item, ZyanMemberFunction constructor)
+{
+    if (!list || !item)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZyanListNode* node;
+    ZYAN_CHECK(ZyanListAllocateNode(list, &node));
+    node->prev = ZYAN_NULL;
+    node->next = list->head;
+
+    *item = ZYCORE_LIST_GET_NODE_DATA(node);
+    if (constructor)
+    {
+        constructor(*item);
+    }
+
+    if (!list->head)
+    {
+        list->head = node;
+        list->tail = node;
+    } else
+    {
+        list->head->prev= node;
+        list->head = node;
+    }
+    ++list->size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Deletion                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanListPopBack(ZyanList* list)
+{
+    if (!list)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (!list->tail)
+    {
+        return ZYAN_STATUS_INVALID_OPERATION;
+    }
+
+    ZyanListNode* const node = list->tail;
+
+    if (list->destructor)
+    {
+        list->destructor(ZYCORE_LIST_GET_NODE_DATA(node));
+    }
+
+    list->tail = node->prev;
+    if (list->tail)
+    {
+        list->tail->next = ZYAN_NULL;
+    }
+    if (list->head == node)
+    {
+        list->head = list->tail;
+    }
+    --list->size;
+
+    return ZyanListDeallocateNode(list, node);
+}
+
+ZyanStatus ZyanListPopFront(ZyanList* list)
+{
+    if (!list)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (!list->head)
+    {
+        return ZYAN_STATUS_INVALID_OPERATION;
+    }
+
+    ZyanListNode* const node = list->head;
+
+    if (list->destructor)
+    {
+        list->destructor(ZYCORE_LIST_GET_NODE_DATA(node));
+    }
+
+    list->head = node->next;
+    if (list->head)
+    {
+        list->head->prev = ZYAN_NULL;
+    }
+    if (list->tail == node)
+    {
+        list->tail = list->head;
+    }
+    --list->size;
+
+    return ZyanListDeallocateNode(list, node);
+}
+
+ZyanStatus ZyanListRemove(ZyanList* list, const ZyanListNode* node)
+{
+    ZYAN_UNUSED(list);
+    ZYAN_UNUSED(node);
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanListRemoveRange(ZyanList* list, const ZyanListNode* first, const ZyanListNode* last)
+{
+    ZYAN_UNUSED(list);
+    ZYAN_UNUSED(first);
+    ZYAN_UNUSED(last);
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanListClear(ZyanList* list)
+{
+    return ZyanListResizeEx(list, 0, ZYAN_NULL);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Searching                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Memory management                                                                              */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanListResize(ZyanList* list, ZyanUSize size)
+{
+    return ZyanListResizeEx(list, size, ZYAN_NULL);
+}
+
+ZyanStatus ZyanListResizeEx(ZyanList* list, ZyanUSize size, const void* initializer)
+{
+    if (!list)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (size == list->size)
+    {
+        return ZYAN_STATUS_SUCCESS;
+    }
+
+    if (size == 0)
+    {
+        const ZyanBool is_dynamic = (list->allocator != ZYAN_NULL);
+        ZyanListNode* node = (is_dynamic || list->destructor) ? list->head : ZYAN_NULL;
+        while (node)
+        {
+            if (list->destructor)
+            {
+                list->destructor(ZYCORE_LIST_GET_NODE_DATA(node));
+            }
+
+            ZyanListNode* const next = node->next;
+
+            if (is_dynamic)
+            {
+                ZYAN_CHECK(list->allocator->deallocate(list->allocator, node,
+                    sizeof(ZyanListNode) + list->element_size, 1));
+            }
+
+            node = next;
+        }
+
+        list->size = 0;
+        list->head = 0;
+        list->tail = 0;
+        list->first_unused = ZYAN_NULL;
+
+        return ZYAN_STATUS_SUCCESS;
+    }
+
+    if (size > list->size)
+    {
+        ZyanListNode* node;
+        for (ZyanUSize i = list->size; i < size; ++i)
+        {
+            ZYAN_CHECK(ZyanListAllocateNode(list, &node));
+            node->prev = list->tail;
+            node->next = ZYAN_NULL;
+
+            if (initializer)
+            {
+                ZYAN_MEMCPY(ZYCORE_LIST_GET_NODE_DATA(node), initializer, list->element_size);
+            }
+
+            if (!list->head)
+            {
+                list->head = node;
+                list->tail = node;
+            } else
+            {
+                list->tail->next = node;
+                list->tail = node;
+            }
+
+            // `ZyanListAllocateNode` needs the list size
+            ++list->size;
+        }
+    } else
+    {
+        for (ZyanUSize i = size; i < list->size; ++i)
+        {
+            ZyanListNode* const node = list->tail;
+
+            if (list->destructor)
+            {
+                list->destructor(ZYCORE_LIST_GET_NODE_DATA(node));
+            }
+
+            list->tail = node->prev;
+            if (list->tail)
+            {
+                list->tail->next = ZYAN_NULL;
+            }
+
+            ZYAN_CHECK(ZyanListDeallocateNode(list, node));
+        }
+
+        list->size = size;
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Information                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanListGetSize(const ZyanList* list, ZyanUSize* size)
+{
+    if (!list)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *size = list->size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
diff --git a/js/src/zydis/Zycore/List.h b/js/src/zydis/Zycore/List.h
new file mode 100644
index 0000000000..0de13dc62f
--- /dev/null
+++ b/js/src/zydis/Zycore/List.h
@@ -0,0 +1,573 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Implements a doubly linked list.
+ */
+
+#ifndef ZYCORE_LIST_H
+#define ZYCORE_LIST_H
+
+#include "zydis/Zycore/Allocator.h"
+#include "zydis/Zycore/Object.h"
+#include "zydis/Zycore/Status.h"
+#include "zydis/Zycore/Types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ============================================================================================== */
+/* Enums and types                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Defines the `ZyanListNode` struct.
+ *
+ * All fields in this struct should be considered as "private". Any changes may lead to unexpected
+ * behavior.
+ */
+typedef struct ZyanListNode_
+{
+    /**
+     * A pointer to the previous list node.
+     */
+    struct ZyanListNode_* prev;
+    /**
+     * A pointer to the next list node.
+     */
+    struct ZyanListNode_* next;
+} ZyanListNode;
+
+/**
+ * Defines the `ZyanList` struct.
+ *
+ * All fields in this struct should be considered as "private". Any changes may lead to unexpected
+ * behavior.
+ */
+typedef struct ZyanList_
+{
+    /**
+     * The memory allocator.
+     */
+    ZyanAllocator* allocator;
+    /**
+     * The current number of elements in the list.
+     */
+    ZyanUSize size;
+    /**
+     * The size of a single element in bytes.
+     */
+    ZyanUSize element_size;
+    /**
+     * The element destructor callback.
+     */
+    ZyanMemberProcedure destructor;
+    /**
+     * The head node.
+     */
+    ZyanListNode* head;
+    /**
+     * The tail node.
+     */
+    ZyanListNode* tail;
+    /**
+     * The data buffer.
+     *
+     * Only used for instances created by `ZyanListInitCustomBuffer`.
+     */
+    void* buffer;
+    /**
+     * The data buffer capacity (number of bytes).
+     *
+     * Only used for instances created by `ZyanListInitCustomBuffer`.
+     */
+    ZyanUSize capacity;
+    /**
+     * The first unused node.
+     *
+     * When removing a node, the first-unused value is updated to point at the removed node and the
+     * next node of the removed node will be updated to point at the old first-unused node.
+     *
+     * When appending the memory of the first unused-node is recycled to store the new node. The
+     * value of the first-unused node is then updated to point at the reused nodes next node.
+     *
+     * If the first-unused value is `ZYAN_NULL`, any new node will be "allocated" behind the tail
+     * node (if there is enough space left in the fixed size buffer).
+     *
+     * Only used for instances created by `ZyanListInitCustomBuffer`.
+     */
+    ZyanListNode* first_unused;
+} ZyanList;
+
+/* ============================================================================================== */
+/* Macros                                                                                         */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* General                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Defines an uninitialized `ZyanList` instance.
+ */
+#define ZYAN_LIST_INITIALIZER \
+    { \
+        /* allocator        */ ZYAN_NULL, \
+        /* size             */ 0, \
+        /* element_size     */ 0, \
+        /* head             */ ZYAN_NULL, \
+        /* destructor       */ ZYAN_NULL, \
+        /* tail             */ ZYAN_NULL, \
+        /* buffer           */ ZYAN_NULL, \
+        /* capacity         */ 0, \
+        /* first_unused     */ ZYAN_NULL \
+    }
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Helper macros                                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns the data value of the given `node`.
+ *
+ * @param   type    The desired value type.
+ * @param   node    A pointer to the `ZyanListNode` struct.
+ *
+ * @result  The data value of the given `node`.
+ *
+ * Note that this function is unsafe and might dereference a null-pointer.
+ */
+#ifdef __cplusplus
+#define ZYAN_LIST_GET(type, node) \
+    (*reinterpret_cast<const type*>(ZyanListGetNodeData(node)))
+#else
+#define ZYAN_LIST_GET(type, node) \
+    (*(const type*)ZyanListGetNodeData(node))
+#endif
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Constructor and destructor                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+/**
+ * Initializes the given `ZyanList` instance.
+ *
+ * @param   list            A pointer to the `ZyanList` instance.
+ * @param   element_size    The size of a single element in bytes.
+ * @param   destructor      A destructor callback that is invoked every time an item is deleted, or
+ *                          `ZYAN_NULL` if not needed.
+ *
+ * @return  A zyan status code.
+ *
+ * The memory for the list elements is dynamically allocated by the default allocator.
+ *
+ * Finalization with `ZyanListDestroy` is required for all instances created by this function.
+ */
+ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanStatus ZyanListInit(ZyanList* list, ZyanUSize element_size,
+    ZyanMemberProcedure destructor);
+
+#endif // ZYAN_NO_LIBC
+
+/**
+ * Initializes the given `ZyanList` instance and sets a custom `allocator`.
+ *
+ * @param   list            A pointer to the `ZyanList` instance.
+ * @param   element_size    The size of a single element in bytes.
+ * @param   destructor      A destructor callback that is invoked every time an item is deleted, or
+ *                          `ZYAN_NULL` if not needed.
+ * @param   allocator       A pointer to a `ZyanAllocator` instance.
+ *
+ * @return  A zyan status code.
+ *
+ * Finalization with `ZyanListDestroy` is required for all instances created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListInitEx(ZyanList* list, ZyanUSize element_size,
+    ZyanMemberProcedure destructor, ZyanAllocator* allocator);
+
+/**
+ * Initializes the given `ZyanList` instance and configures it to use a custom user
+ * defined buffer with a fixed size.
+ *
+ * @param   list            A pointer to the `ZyanList` instance.
+ * @param   element_size    The size of a single element in bytes.
+ * @param   destructor      A destructor callback that is invoked every time an item is deleted, or
+ *                          `ZYAN_NULL` if not needed.
+ * @param   buffer          A pointer to the buffer that is used as storage for the elements.
+ * @param   capacity        The maximum capacity (number of bytes) of the buffer including the
+ *                          space required for the list-nodes.
+ *
+ * @return  A zyan status code.
+ *
+ * The buffer capacity required to store `n` elements of type `T` is be calculated by:
+ * `size = n * sizeof(ZyanListNode) + n * sizeof(T)`
+ *
+ * Finalization is not required for instances created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListInitCustomBuffer(ZyanList* list, ZyanUSize element_size,
+    ZyanMemberProcedure destructor, void* buffer, ZyanUSize capacity);
+
+/**
+ * Destroys the given `ZyanList` instance.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListDestroy(ZyanList* list);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Duplication                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+/**
+ * Initializes a new `ZyanList` instance by duplicating an existing list.
+ *
+ * @param   destination A pointer to the (uninitialized) destination `ZyanList` instance.
+ * @param   source      A pointer to the source list.
+ *
+ * @return  A zyan status code.
+ *
+ * The memory for the list is dynamically allocated by the default allocator.
+ *
+ * Finalization with `ZyanListDestroy` is required for all instances created by this function.
+ */
+ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanStatus ZyanListDuplicate(ZyanList* destination,
+    const ZyanList* source);
+
+#endif // ZYAN_NO_LIBC
+
+/**
+ * Initializes a new `ZyanList` instance by duplicating an existing list and sets a
+ * custom `allocator`.
+ *
+ * @param   destination A pointer to the (uninitialized) destination `ZyanList` instance.
+ * @param   source      A pointer to the source list.
+ * @param   allocator   A pointer to a `ZyanAllocator` instance.
+ *
+ * @return  A zyan status code.
+
+ * Finalization with `ZyanListDestroy` is required for all instances created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListDuplicateEx(ZyanList* destination, const ZyanList* source,
+    ZyanAllocator* allocator);
+
+/**
+ * Initializes a new `ZyanList` instance by duplicating an existing list and
+ * configures it to use a custom user defined buffer with a fixed size.
+ *
+ * @param   destination A pointer to the (uninitialized) destination `ZyanList` instance.
+ * @param   source      A pointer to the source list.
+ * @param   buffer      A pointer to the buffer that is used as storage for the elements.
+ * @param   capacity    The maximum capacity (number of bytes) of the buffer including the
+ *                      space required for the list-nodes.
+
+ *                      This function will fail, if the capacity of the buffer is not sufficient
+ *                      to store all elements of the source list.
+ *
+ * @return  A zyan status code.
+ *
+ * The buffer capacity required to store `n` elements of type `T` is be calculated by:
+ * `size = n * sizeof(ZyanListNode) + n * sizeof(T)`
+ *
+ * Finalization is not required for instances created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListDuplicateCustomBuffer(ZyanList* destination,
+    const ZyanList* source, void* buffer, ZyanUSize capacity);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Item access                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns a pointer to the first `ZyanListNode` struct of the given list.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ * @param   node    Receives a pointer to the first `ZyanListNode` struct of the list.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListGetHeadNode(const ZyanList* list, const ZyanListNode** node);
+
+/**
+ * Returns a pointer to the last `ZyanListNode` struct of the given list.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ * @param   node    Receives a pointer to the last `ZyanListNode` struct of the list.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListGetTailNode(const ZyanList* list, const ZyanListNode** node);
+
+/**
+ * Receives a pointer to the previous `ZyanListNode` struct linked to the passed one.
+ *
+ * @param   node    Receives a pointer to the previous `ZyanListNode` struct linked to the passed
+ *                  one.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListGetPrevNode(const ZyanListNode** node);
+
+/**
+ * Receives a pointer to the next `ZyanListNode` struct linked to the passed one.
+ *
+ * @param   node    Receives a pointer to the next `ZyanListNode` struct linked to the passed one.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListGetNextNode(const ZyanListNode** node);
+
+/**
+ * Returns a constant pointer to the data of the given `node`.
+ *
+ * @param   node    A pointer to the `ZyanListNode` struct.
+ *
+ * @return  A constant pointer to the the data of the given `node` or `ZYAN_NULL`, if an error
+ *          occured.
+ *
+ * Take a look at `ZyanListGetNodeDataEx`, if you need a function that returns a zyan status code.
+ */
+ZYCORE_EXPORT const void* ZyanListGetNodeData(const ZyanListNode* node);
+
+/**
+ * Returns a constant pointer to the data of the given `node`..
+ *
+ * @param   node    A pointer to the `ZyanListNode` struct.
+ * @param   value   Receives a constant pointer to the data of the given `node`.
+ *
+ * Take a look at `ZyanListGetNodeData`, if you need a function that directly returns a pointer.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListGetNodeDataEx(const ZyanListNode* node, const void** value);
+
+/**
+ * Returns a mutable pointer to the data of the given `node`.
+ *
+ * @param   node    A pointer to the `ZyanListNode` struct.
+ *
+ * @return  A mutable pointer to the the data of the given `node` or `ZYAN_NULL`, if an error
+ *          occured.
+ *
+ * Take a look at `ZyanListGetPointerMutableEx` instead, if you need a function that returns a
+ * zyan status code.
+ */
+ZYCORE_EXPORT void* ZyanListGetNodeDataMutable(const ZyanListNode* node);
+
+/**
+ * Returns a mutable pointer to the data of the given `node`..
+ *
+ * @param   node    A pointer to the `ZyanListNode` struct.
+ * @param   value   Receives a mutable pointer to the data of the given `node`.
+ *
+ * Take a look at `ZyanListGetNodeDataMutable`, if you need a function that directly returns a
+ * pointer.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListGetNodeDataMutableEx(const ZyanListNode* node, void** value);
+
+/**
+ * Assigns a new data value to the given `node`.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ * @param   node    A pointer to the `ZyanListNode` struct.
+ * @param   value   The value to assign.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListSetNodeData(const ZyanList* list, const ZyanListNode* node,
+    const void* value);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Insertion                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Adds a new `item` to the end of the list.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ * @param   item    A pointer to the item to add.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListPushBack(ZyanList* list, const void* item);
+
+/**
+ * Adds a new `item` to the beginning of the list.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ * @param   item    A pointer to the item to add.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListPushFront(ZyanList* list, const void* item);
+
+/**
+ * Constructs an `item` in-place at the end of the list.
+ *
+ * @param   list        A pointer to the `ZyanList` instance.
+ * @param   item        Receives a pointer to the new item.
+ * @param   constructor The constructor callback or `ZYAN_NULL`. The new item will be in
+ *                      undefined state, if no constructor was passed.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListEmplaceBack(ZyanList* list, void** item,
+    ZyanMemberFunction constructor);
+
+/**
+ * Constructs an `item` in-place at the beginning of the list.
+ *
+ * @param   list        A pointer to the `ZyanList` instance.
+ * @param   item        Receives a pointer to the new item.
+ * @param   constructor The constructor callback or `ZYAN_NULL`. The new item will be in
+ *                      undefined state, if no constructor was passed.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListEmplaceFront(ZyanList* list, void** item,
+    ZyanMemberFunction constructor);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Deletion                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Removes the last element of the list.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListPopBack(ZyanList* list);
+
+/**
+ * Removes the firstelement of the list.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListPopFront(ZyanList* list);
+
+/**
+ * Removes the given `node` from the list.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ * @param   node    A pointer to the `ZyanListNode` struct.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListRemove(ZyanList* list, const ZyanListNode* node);
+
+/**
+ * Removes multiple nodes from the list.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ * @param   first   A pointer to the first node.
+ * @param   last    A pointer to the last node.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListRemoveRange(ZyanList* list, const ZyanListNode* first,
+    const ZyanListNode* last);
+
+/**
+ * Erases all elements of the list.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListClear(ZyanList* list);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Searching                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+// TODO:
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Memory management                                                                              */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Resizes the given `ZyanList` instance.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ * @param   size    The new size of the list.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListResize(ZyanList* list, ZyanUSize size);
+
+/**
+ * Resizes the given `ZyanList` instance.
+ *
+ * @param   list        A pointer to the `ZyanList` instance.
+ * @param   size        The new size of the list.
+ * @param   initializer A pointer to a value to be used as initializer for new items.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListResizeEx(ZyanList* list, ZyanUSize size, const void* initializer);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Information                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns the current size of the list.
+ *
+ * @param   list    A pointer to the `ZyanList` instance.
+ * @param   size    Receives the size of the list.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanListGetSize(const ZyanList* list, ZyanUSize* size);
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_VECTOR_H */
diff --git a/js/src/zydis/Zycore/Object.h b/js/src/zydis/Zycore/Object.h
new file mode 100644
index 0000000000..aaa6811a4a
--- /dev/null
+++ b/js/src/zydis/Zycore/Object.h
@@ -0,0 +1,84 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Defines some generic object-related datatypes.
+ */
+
+#ifndef ZYCORE_OBJECT_H
+#define ZYCORE_OBJECT_H
+
+#include "zydis/Zycore/Status.h"
+#include "zydis/Zycore/Types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ============================================================================================== */
+/* Enums and types                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Defines the `ZyanMemberProcedure` function prototype.
+ *
+ * @param   object  A pointer to the object.
+ */
+typedef void (*ZyanMemberProcedure)(void* object);
+
+/**
+ * Defines the `ZyanConstMemberProcedure` function prototype.
+ *
+ * @param   object  A pointer to the object.
+ */
+typedef void (*ZyanConstMemberProcedure)(const void* object);
+
+/**
+ * Defines the `ZyanMemberFunction` function prototype.
+ *
+ * @param   object  A pointer to the object.
+ *
+ * @return  A zyan status code.
+ */
+typedef ZyanStatus (*ZyanMemberFunction)(void* object);
+
+/**
+ * Defines the `ZyanConstMemberFunction` function prototype.
+ *
+ * @param   object  A pointer to the object.
+ *
+ * @return  A zyan status code.
+ */
+typedef ZyanStatus (*ZyanConstMemberFunction)(const void* object);
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_OBJECT_H */
diff --git a/js/src/zydis/Zycore/Status.h b/js/src/zydis/Zycore/Status.h
new file mode 100644
index 0000000000..9c8a2d8987
--- /dev/null
+++ b/js/src/zydis/Zycore/Status.h
@@ -0,0 +1,287 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zyan-C)
+
+  Original Author : Florian Bernd, Joel Hoener
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Status code definitions and check macros.
+ */
+
+#ifndef ZYCORE_STATUS_H
+#define ZYCORE_STATUS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "zydis/Zycore/Types.h"
+
+/* ============================================================================================== */
+/* Enums and types                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Defines the `ZyanStatus` data type.
+ */
+typedef ZyanU32 ZyanStatus;
+
+/* ============================================================================================== */
+/* Macros                                                                                         */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Definition                                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Defines a zyan status code.
+ *
+ * @param   error   `1`, if the status code signals an error or `0`, if not.
+ * @param   module  The module id.
+ * @param   code    The actual code.
+ *
+ * @return  The zyan status code.
+ */
+#define ZYAN_MAKE_STATUS(error, module, code) \
+    (ZyanStatus)((((error) & 0x01u) << 31u) | (((module) & 0x7FFu) << 20u) | ((code) & 0xFFFFFu))
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Checks                                                                                         */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Checks if a zyan operation was successful.
+ *
+ * @param   status  The zyan status-code to check.
+ *
+ * @return  `ZYAN_TRUE`, if the operation succeeded or `ZYAN_FALSE`, if not.
+ */
+#define ZYAN_SUCCESS(status) \
+    (!((status) & 0x80000000u))
+
+/**
+ * Checks if a zyan operation failed.
+ *
+ * @param   status  The zyan status-code to check.
+ *
+ * @return  `ZYAN_TRUE`, if the operation failed or `ZYAN_FALSE`, if not.
+ */
+#define ZYAN_FAILED(status) \
+    ((status) & 0x80000000u)
+
+/**
+ * Checks if a zyan operation was successful and returns with the status-code, if not.
+ *
+ * @param   status  The zyan status-code to check.
+ */
+#define ZYAN_CHECK(status) \
+    do \
+    { \
+        const ZyanStatus status_047620348 = (status); \
+        if (!ZYAN_SUCCESS(status_047620348)) \
+        { \
+            return status_047620348; \
+        } \
+    } while (0)
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Information                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+ /**
+ * Returns the module id of a zyan status-code.
+ *
+ * @param   status  The zyan status-code.
+ *
+ * @return  The module id of the zyan status-code.
+ */
+#define ZYAN_STATUS_MODULE(status) \
+    (((status) >> 20) & 0x7FFu)
+
+ /**
+ * Returns the code of a zyan status-code.
+ *
+ * @param   status  The zyan status-code.
+ *
+ * @return  The code of the zyan status-code.
+ */
+#define ZYAN_STATUS_CODE(status) \
+    ((status) & 0xFFFFFu)
+
+/* ============================================================================================== */
+/* Status codes                                                                                   */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Module IDs                                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * The zycore generic module id.
+ */
+#define ZYAN_MODULE_ZYCORE      0x001u
+
+/**
+ * The zycore arg-parse submodule id.
+ */
+#define ZYAN_MODULE_ARGPARSE    0x003u
+
+/**
+ * The base module id for user-defined status codes.
+ */
+#define ZYAN_MODULE_USER        0x3FFu
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Status codes (general purpose)                                                                 */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * The operation completed successfully.
+ */
+#define ZYAN_STATUS_SUCCESS \
+    ZYAN_MAKE_STATUS(0u, ZYAN_MODULE_ZYCORE, 0x00u)
+
+/**
+ * The operation failed with an generic error.
+ */
+#define ZYAN_STATUS_FAILED \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ZYCORE, 0x01u)
+
+/**
+ * The operation completed successfully and returned `ZYAN_TRUE`.
+ */
+#define ZYAN_STATUS_TRUE \
+    ZYAN_MAKE_STATUS(0u, ZYAN_MODULE_ZYCORE, 0x02u)
+
+/**
+ * The operation completed successfully and returned `ZYAN_FALSE`.
+ */
+#define ZYAN_STATUS_FALSE \
+    ZYAN_MAKE_STATUS(0u, ZYAN_MODULE_ZYCORE, 0x03u)
+
+/**
+ * An invalid argument was passed to a function.
+ */
+#define ZYAN_STATUS_INVALID_ARGUMENT \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ZYCORE, 0x04u)
+
+/**
+ * An attempt was made to perform an invalid operation.
+ */
+#define ZYAN_STATUS_INVALID_OPERATION \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ZYCORE, 0x05u)
+
+/**
+ * Insufficient privileges to perform the requested operation.
+ */
+#define ZYAN_STATUS_ACCESS_DENIED \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ZYCORE, 0x06u)
+
+/**
+ * The requested entity was not found.
+ */
+#define ZYAN_STATUS_NOT_FOUND \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ZYCORE, 0x07u)
+
+/**
+ * An index passed to a function was out of bounds.
+ */
+#define ZYAN_STATUS_OUT_OF_RANGE \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ZYCORE, 0x08u)
+
+/**
+ * A buffer passed to a function was too small to complete the requested operation.
+ */
+#define ZYAN_STATUS_INSUFFICIENT_BUFFER_SIZE \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ZYCORE, 0x09u)
+
+/**
+ * Insufficient memory to perform the operation.
+ */
+#define ZYAN_STATUS_NOT_ENOUGH_MEMORY \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ZYCORE, 0x0Au)
+
+/**
+ * An unknown error occurred during a system function call.
+ */
+#define ZYAN_STATUS_BAD_SYSTEMCALL \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ZYCORE, 0x0Bu)
+
+/**
+ * The process ran out of resources while performing an operation.
+ */
+#define ZYAN_STATUS_OUT_OF_RESOURCES \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ZYCORE, 0x0Cu)
+
+/**
+ * A dependency library was not found or does have an unexpected version number or
+ * feature-set.
+ */
+#define ZYAN_STATUS_MISSING_DEPENDENCY \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ZYCORE, 0x0Du)
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Status codes (arg parse)                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Argument was not expected.
+ */
+#define ZYAN_STATUS_ARG_NOT_UNDERSTOOD \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ARGPARSE, 0x00u)
+
+/**
+ * Too few arguments were provided.
+ */
+#define ZYAN_STATUS_TOO_FEW_ARGS \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ARGPARSE, 0x01u)
+
+/**
+ * Too many arguments were provided.
+ */
+#define ZYAN_STATUS_TOO_MANY_ARGS \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ARGPARSE, 0x02u)
+
+/**
+ * An argument that expected a value misses its value.
+ */
+#define ZYAN_STATUS_ARG_MISSES_VALUE \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ARGPARSE, 0x03u)
+
+/**
+* A required argument is missing.
+*/
+#define ZYAN_STATUS_REQUIRED_ARG_MISSING \
+    ZYAN_MAKE_STATUS(1u, ZYAN_MODULE_ARGPARSE, 0x04u)
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_STATUS_H */
diff --git a/js/src/zydis/Zycore/String.h b/js/src/zydis/Zycore/String.h
new file mode 100644
index 0000000000..f25ad7e94c
--- /dev/null
+++ b/js/src/zydis/Zycore/String.h
@@ -0,0 +1,1011 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Implements a string type.
+ */
+
+#ifndef ZYCORE_STRING_H
+#define ZYCORE_STRING_H
+
+#include "zydis/Zycore/Allocator.h"
+#include "zydis/Zycore/Status.h"
+#include "zydis/Zycore/Types.h"
+#include "zydis/Zycore/Vector.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ============================================================================================== */
+/* Constants                                                                                      */
+/* ============================================================================================== */
+
+/**
+ * The initial minimum capacity (number of characters) for all dynamically allocated
+ * string instances - not including the terminating '\0'-character.
+ */
+#define ZYAN_STRING_MIN_CAPACITY                32
+
+/**
+ * The default growth factor for all string instances.
+ */
+#define ZYAN_STRING_DEFAULT_GROWTH_FACTOR       2
+
+/**
+ * The default shrink threshold for all string instances.
+ */
+#define ZYAN_STRING_DEFAULT_SHRINK_THRESHOLD    4
+
+/* ============================================================================================== */
+/* Enums and types                                                                                */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* String flags                                                                                   */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Defines the `ZyanStringFlags` data-type.
+ */
+typedef ZyanU8 ZyanStringFlags;
+
+/**
+ * The string uses a custom user-defined buffer with a fixed capacity.
+ */
+#define ZYAN_STRING_HAS_FIXED_CAPACITY  0x01 // (1 << 0)
+
+/* ---------------------------------------------------------------------------------------------- */
+/* String                                                                                         */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Defines the `ZyanString` struct.
+ *
+ * The `ZyanString` type is implemented as a size-prefixed string - which allows for a lot of
+ * performance optimizations.
+ * Nevertheless null-termination is guaranteed at all times to provide maximum compatibility with
+ * default C-style strings (use `ZyanStringGetData` to access the C-style string).
+ *
+ * All fields in this struct should be considered as "private". Any changes may lead to unexpected
+ * behavior.
+ */
+typedef struct ZyanString_
+{
+    /**
+     * String flags.
+     */
+    ZyanStringFlags flags;
+    /**
+     * The vector that contains the actual string.
+     */
+    ZyanVector vector;
+} ZyanString;
+
+/* ---------------------------------------------------------------------------------------------- */
+/* View                                                                                           */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Defines the `ZyanStringView` struct.
+ *
+ * The `ZyanStringView` type provides a view inside a string (`ZyanString` instances, null-
+ * terminated C-style strings, or even not-null-terminated custom strings). A view is immutable
+ * by design and can't be directly converted to a C-style string.
+ *
+ * Views might become invalid (e.g. pointing to invalid memory), if the underlying string gets
+ * destroyed or resized.
+ *
+ * The `ZYAN_STRING_TO_VIEW` macro can be used to cast a `ZyanString` to a `ZyanStringView` pointer
+ * without any runtime overhead.
+ * Casting a view to a normal string is not supported and will lead to unexpected behavior (use
+ * `ZyanStringDuplicate` to create a deep-copy instead).
+ *
+ * All fields in this struct should be considered as "private". Any changes may lead to unexpected
+ * behavior.
+ */
+typedef struct ZyanStringView_
+{
+    /**
+     * The string data.
+     *
+     * The view internally re-uses the normal string struct to allow casts without any runtime
+     * overhead.
+     */
+    ZyanString string;
+} ZyanStringView;
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Macros                                                                                         */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* General                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Defines an uninitialized `ZyanString` instance.
+ */
+#define ZYAN_STRING_INITIALIZER \
+    { \
+        /* flags  */ 0, \
+        /* vector */ ZYAN_VECTOR_INITIALIZER \
+    }
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Helper macros                                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Casts a `ZyanString` pointer to a constant `ZyanStringView` pointer.
+ */
+#define ZYAN_STRING_TO_VIEW(string) (const ZyanStringView*)(string)
+
+/**
+ * Defines a `ZyanStringView` struct that provides a view into a static C-style string.
+ *
+ * @param   string  The C-style string.
+ */
+#define ZYAN_DEFINE_STRING_VIEW(string) \
+    { \
+        /* string */ \
+        { \
+            /* flags  */ 0, \
+            /* vector */ \
+            { \
+                /* allocator        */ ZYAN_NULL, \
+                /* growth_factor    */ 1, \
+                /* shrink_threshold */ 0, \
+                /* size             */ sizeof(string), \
+                /* capacity         */ sizeof(string), \
+                /* element_size     */ sizeof(char), \
+                /* destructor       */ ZYAN_NULL, \
+                /* data             */ (char*)(string) \
+            } \
+        } \
+    }
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Constructor and destructor                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+/**
+ * Initializes the given `ZyanString` instance.
+ *
+ * @param   string          A pointer to the `ZyanString` instance.
+ * @param   capacity        The initial capacity (number of characters).
+ *
+ * @return  A zyan status code.
+ *
+ * The memory for the string is dynamically allocated by the default allocator using the default
+ * growth factor and the default shrink threshold.
+ *
+ * The allocated buffer will be at least one character larger than the given `capacity`, to reserve
+ * space for the terminating '\0'.
+ *
+ * Finalization with `ZyanStringDestroy` is required for all strings created by this function.
+ */
+ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanStatus ZyanStringInit(ZyanString* string, ZyanUSize capacity);
+
+#endif // ZYAN_NO_LIBC
+
+/**
+ * Initializes the given `ZyanString` instance and sets a custom `allocator` and memory
+ * allocation/deallocation parameters.
+ *
+ * @param   string              A pointer to the `ZyanString` instance.
+ * @param   capacity            The initial capacity (number of characters).
+ * @param   allocator           A pointer to a `ZyanAllocator` instance.
+ * @param   growth_factor       The growth factor.
+ * @param   shrink_threshold    The shrink threshold.
+ *
+ * @return  A zyan status code.
+ *
+ * A growth factor of `1` disables overallocation and a shrink threshold of `0` disables
+ * dynamic shrinking.
+ *
+ * The allocated buffer will be at least one character larger than the given `capacity`, to reserve
+ * space for the terminating '\0'.
+ *
+ * Finalization with `ZyanStringDestroy` is required for all strings created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringInitEx(ZyanString* string, ZyanUSize capacity,
+    ZyanAllocator* allocator, ZyanU8 growth_factor, ZyanU8 shrink_threshold);
+
+/**
+ * Initializes the given `ZyanString` instance and configures it to use a custom user
+ * defined buffer with a fixed size.
+ *
+ * @param   string          A pointer to the `ZyanString` instance.
+ * @param   buffer          A pointer to the buffer that is used as storage for the string.
+ * @param   capacity        The maximum capacity (number of characters) of the buffer, including
+ *                          the terminating '\0'.
+ *
+ * @return  A zyan status code.
+ *
+ * Finalization is not required for strings created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringInitCustomBuffer(ZyanString* string, char* buffer,
+    ZyanUSize capacity);
+
+/**
+ * Destroys the given `ZyanString` instance.
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ *
+ * @return  A zyan status code.
+ *
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringDestroy(ZyanString* string);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Duplication                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+/**
+ * Initializes a new `ZyanString` instance by duplicating an existing string.
+ *
+ * @param   destination A pointer to the (uninitialized) destination `ZyanString` instance.
+ * @param   source      A pointer to the source string.
+ * @param   capacity    The initial capacity (number of characters).
+ *
+ *                      This value is automatically adjusted to the size of the source string, if
+ *                      a smaller value was passed.
+ *
+ * @return  A zyan status code.
+ *
+ * The behavior of this function is undefined, if `source` is a view into the `destination`
+ * string or `destination` points to an already initialized `ZyanString` instance.
+ *
+ * The memory for the string is dynamically allocated by the default allocator using the default
+ * growth factor and the default shrink threshold.
+ *
+ * The allocated buffer will be at least one character larger than the given `capacity`, to reserve
+ * space for the terminating '\0'.
+ *
+ * Finalization with `ZyanStringDestroy` is required for all strings created by this function.
+ */
+ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanStatus ZyanStringDuplicate(ZyanString* destination,
+    const ZyanStringView* source, ZyanUSize capacity);
+
+#endif // ZYAN_NO_LIBC
+
+/**
+ * Initializes a new `ZyanString` instance by duplicating an existing string and sets a
+ * custom `allocator` and memory allocation/deallocation parameters.
+ *
+ * @param   destination         A pointer to the (uninitialized) destination `ZyanString` instance.
+ * @param   source              A pointer to the source string.
+ * @param   capacity            The initial capacity (number of characters).
+
+ *                              This value is automatically adjusted to the size of the source
+ *                              string, if a smaller value was passed.
+ * @param   allocator           A pointer to a `ZyanAllocator` instance.
+ * @param   growth_factor       The growth factor.
+ * @param   shrink_threshold    The shrink threshold.
+ *
+ * @return  A zyan status code.
+ *
+ * The behavior of this function is undefined, if `source` is a view into the `destination`
+ * string or `destination` points to an already initialized `ZyanString` instance.
+ *
+ * A growth factor of `1` disables overallocation and a shrink threshold of `0` disables
+ * dynamic shrinking.
+ *
+ * The allocated buffer will be at least one character larger than the given `capacity`, to reserve
+ * space for the terminating '\0'.
+ *
+ * Finalization with `ZyanStringDestroy` is required for all strings created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringDuplicateEx(ZyanString* destination,
+    const ZyanStringView* source, ZyanUSize capacity, ZyanAllocator* allocator,
+    ZyanU8 growth_factor, ZyanU8 shrink_threshold);
+
+/**
+ * Initializes a new `ZyanString` instance by duplicating an existing string and
+ * configures it to use a custom user defined buffer with a fixed size.
+ *
+ * @param   destination A pointer to the (uninitialized) destination `ZyanString` instance.
+ * @param   source      A pointer to the source string.
+ * @param   buffer      A pointer to the buffer that is used as storage for the string.
+ * @param   capacity    The maximum capacity (number of characters) of the buffer, including the
+ *                      terminating '\0'.
+
+ *                      This function will fail, if the capacity of the buffer is less or equal to
+ *                      the size of the source string.
+ *
+ * @return  A zyan status code.
+ *
+ * The behavior of this function is undefined, if `source` is a view into the `destination`
+ * string or `destination` points to an already initialized `ZyanString` instance.
+ *
+ * Finalization is not required for strings created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringDuplicateCustomBuffer(ZyanString* destination,
+    const ZyanStringView* source, char* buffer, ZyanUSize capacity);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Concatenation                                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+/**
+ * Initializes a new `ZyanString` instance by concatenating two existing strings.
+ *
+ * @param   destination A pointer to the (uninitialized) destination `ZyanString` instance.
+ *
+ *                      This function will fail, if the destination `ZyanString` instance equals
+ *                      one of the source strings.
+ * @param   s1          A pointer to the first source string.
+ * @param   s2          A pointer to the second source string.
+ * @param   capacity    The initial capacity (number of characters).
+
+ *                      This value is automatically adjusted to the combined size of the source
+ *                      strings, if a smaller value was passed.
+ *
+ * @return  A zyan status code.
+ *
+ * The behavior of this function is undefined, if `s1` or `s2` are views into the `destination`
+ * string or `destination` points to an already initialized `ZyanString` instance.
+ *
+ * The memory for the string is dynamically allocated by the default allocator using the default
+ * growth factor and the default shrink threshold.
+ *
+ * The allocated buffer will be at least one character larger than the given `capacity`, to reserve
+ * space for the terminating '\0'.
+ *
+ * Finalization with `ZyanStringDestroy` is required for all strings created by this function.
+ */
+ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanStatus ZyanStringConcat(ZyanString* destination,
+    const ZyanStringView* s1, const ZyanStringView* s2, ZyanUSize capacity);
+
+#endif // ZYAN_NO_LIBC
+
+/**
+ * Initializes a new `ZyanString` instance by concatenating two existing strings and sets
+ * a custom `allocator` and memory allocation/deallocation parameters.
+ *
+ * @param   destination         A pointer to the (uninitialized) destination `ZyanString` instance.
+ *
+ *                              This function will fail, if the destination `ZyanString` instance
+ *                              equals one of the source strings.
+ * @param   s1                  A pointer to the first source string.
+ * @param   s2                  A pointer to the second source string.
+ * @param   capacity            The initial capacity (number of characters).
+ *
+ *                              This value is automatically adjusted to the combined size of the
+ *                              source strings, if a smaller value was passed.
+ * @param   allocator           A pointer to a `ZyanAllocator` instance.
+ * @param   growth_factor       The growth factor.
+ * @param   shrink_threshold    The shrink threshold.
+ *
+ * @return  A zyan status code.
+ *
+ * The behavior of this function is undefined, if `s1` or `s2` are views into the `destination`
+ * string or `destination` points to an already initialized `ZyanString` instance.
+ *
+ * A growth factor of `1` disables overallocation and a shrink threshold of `0` disables
+ * dynamic shrinking.
+ *
+ * The allocated buffer will be at least one character larger than the given `capacity`, to reserve
+ * space for the terminating '\0'.
+ *
+ * Finalization with `ZyanStringDestroy` is required for all strings created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringConcatEx(ZyanString* destination, const ZyanStringView* s1,
+    const ZyanStringView* s2, ZyanUSize capacity, ZyanAllocator* allocator, ZyanU8 growth_factor,
+    ZyanU8 shrink_threshold);
+
+/**
+ * Initializes a new `ZyanString` instance by concatenating two existing strings and
+ * configures it to use a custom user defined buffer with a fixed size.
+ *
+ * @param   destination A pointer to the (uninitialized) destination `ZyanString` instance.
+ *
+ *                      This function will fail, if the destination `ZyanString` instance equals
+ *                      one of the source strings.
+ * @param   s1          A pointer to the first source string.
+ * @param   s2          A pointer to the second source string.
+ * @param   buffer      A pointer to the buffer that is used as storage for the string.
+ * @param   capacity    The maximum capacity (number of characters) of the buffer.
+ *
+ *                      This function will fail, if the capacity of the buffer is less or equal to
+ *                      the combined size of the source strings.
+ *
+ * @return  A zyan status code.
+ *
+ * The behavior of this function is undefined, if `s1` or `s2` are views into the `destination`
+ * string or `destination` points to an already initialized `ZyanString` instance.
+ *
+ * Finalization is not required for strings created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringConcatCustomBuffer(ZyanString* destination,
+    const ZyanStringView* s1, const ZyanStringView* s2, char* buffer, ZyanUSize capacity);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Views                                                                                          */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns a view inside an existing view/string.
+ *
+ * @param   view    A pointer to the `ZyanStringView` instance.
+ * @param   source  A pointer to the source string.
+ *
+ * @return  A zyan status code.
+ *
+ * The `ZYAN_STRING_TO_VEW` macro can be used to pass any `ZyanString` instance as value for the
+ * `source` string.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringViewInsideView(ZyanStringView* view,
+    const ZyanStringView* source);
+
+/**
+ * Returns a view inside an existing view/string starting from the given `index`.
+ *
+ * @param   view    A pointer to the `ZyanStringView` instance.
+ * @param   source  A pointer to the source string.
+ * @param   index   The start index.
+ * @param   count   The number of characters.
+ *
+ * @return  A zyan status code.
+ *
+ * The `ZYAN_STRING_TO_VEW` macro can be used to pass any `ZyanString` instance as value for the
+ * `source` string.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringViewInsideViewEx(ZyanStringView* view,
+    const ZyanStringView* source, ZyanUSize index, ZyanUSize count);
+
+/**
+ * Returns a view inside a null-terminated C-style string.
+ *
+ * @param   view    A pointer to the `ZyanStringView` instance.
+ * @param   string  The C-style string.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringViewInsideBuffer(ZyanStringView* view, const char* string);
+
+/**
+ * Returns a view inside a character buffer with custom length.
+ *
+ * @param   view    A pointer to the `ZyanStringView` instance.
+ * @param   buffer  A pointer to the buffer containing the string characters.
+ * @param   length  The length of the string (number of characters).
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringViewInsideBufferEx(ZyanStringView* view, const char* buffer,
+    ZyanUSize length);
+
+/**
+ * Returns the size (number of characters) of the view.
+ *
+ * @param   view    A pointer to the `ZyanStringView` instance.
+ * @param   size    Receives the size (number of characters) of the view.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringViewGetSize(const ZyanStringView* view, ZyanUSize* size);
+
+/**
+ * Returns the C-style string of the given `ZyanString` instance.
+ *
+ * @warning The string is not guaranteed to be null terminated!
+ *
+ * @param   view    A pointer to the `ZyanStringView` instance.
+ * @param   buffer  Receives a pointer to the C-style string.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringViewGetData(const ZyanStringView* view, const char** buffer);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Character access                                                                               */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns the character at the given `index`.
+ *
+ * @param   string  A pointer to the `ZyanStringView` instance.
+ * @param   index   The character index.
+ * @param   value   Receives the desired character of the string.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringGetChar(const ZyanStringView* string, ZyanUSize index,
+    char* value);
+
+/**
+ * Returns a pointer to the character at the given `index`.
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ * @param   index   The character index.
+ * @param   value   Receives a pointer to the desired character in the string.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringGetCharMutable(ZyanString* string, ZyanUSize index,
+    char** value);
+
+/**
+ * Assigns a new value to the character at the given `index`.
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ * @param   index   The character index.
+ * @param   value   The character to assign.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringSetChar(ZyanString* string, ZyanUSize index, char value);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Insertion                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Inserts the content of the source string in the destination string at the given `index`.
+ *
+ * @param   destination The destination string.
+ * @param   index       The insert index.
+ * @param   source      The source string.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringInsert(ZyanString* destination, ZyanUSize index,
+    const ZyanStringView* source);
+
+/**
+ * Inserts `count` characters of the source string in the destination string at the given
+ * `index`.
+ *
+ * @param   destination         The destination string.
+ * @param   destination_index   The insert index.
+ * @param   source              The source string.
+ * @param   source_index        The index of the first character to be inserted from the source
+ *                              string.
+ * @param   count               The number of chars to insert from the source string.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringInsertEx(ZyanString* destination, ZyanUSize destination_index,
+    const ZyanStringView* source, ZyanUSize source_index, ZyanUSize count);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Appending                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Appends the content of the source string to the end of the destination string.
+ *
+ * @param   destination The destination string.
+ * @param   source      The source string.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringAppend(ZyanString* destination, const ZyanStringView* source);
+
+/**
+ * Appends `count` characters of the source string to the end of the destination string.
+ *
+ * @param   destination     The destination string.
+ * @param   source          The source string.
+ * @param   source_index    The index of the first character to be appended from the source string.
+ * @param   count           The number of chars to append from the source string.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringAppendEx(ZyanString* destination, const ZyanStringView* source,
+    ZyanUSize source_index, ZyanUSize count);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Deletion                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Deletes characters from the given string, starting at `index`.
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ * @param   index   The index of the first character to delete.
+ * @param   count   The number of characters to delete.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringDelete(ZyanString* string, ZyanUSize index, ZyanUSize count);
+
+/**
+ * Deletes all remaining characters from the given string, starting at `index`.
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ * @param   index   The index of the first character to delete.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringTruncate(ZyanString* string, ZyanUSize index);
+
+/**
+ * Erases the given string.
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringClear(ZyanString* string);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Searching                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Searches for the first occurrence of `needle` in the given `haystack` starting from the
+ * left.
+ *
+ * @param   haystack    The string to search in.
+ * @param   needle      The sub-string to search for.
+ * @param   found_index A pointer to a variable that receives the index of the first occurrence of
+ *                      `needle`.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the needle was found, `ZYAN_STATUS_FALSE`, if not, or another
+ *          zyan status code, if an error occured.
+ *
+ * The `found_index` is set to `-1`, if the needle was not found.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringLPos(const ZyanStringView* haystack,
+    const ZyanStringView* needle, ZyanISize* found_index);
+
+/**
+ * Searches for the first occurrence of `needle` in the given `haystack` starting from the
+ * left.
+ *
+ * @param   haystack    The string to search in.
+ * @param   needle      The sub-string to search for.
+ * @param   found_index A pointer to a variable that receives the index of the first occurrence of
+ *                      `needle`.
+ * @param   index       The start index.
+ * @param   count       The maximum number of characters to iterate, beginning from the start
+ *                      `index`.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the needle was found, `ZYAN_STATUS_FALSE`, if not, or another
+ *          zyan status code, if an error occured.
+ *
+ * The `found_index` is set to `-1`, if the needle was not found.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringLPosEx(const ZyanStringView* haystack,
+    const ZyanStringView* needle, ZyanISize* found_index, ZyanUSize index, ZyanUSize count);
+
+/**
+ * Performs a case-insensitive search for the first occurrence of `needle` in the given
+ * `haystack` starting from the left.
+ *
+ * @param   haystack    The string to search in.
+ * @param   needle      The sub-string to search for.
+ * @param   found_index A pointer to a variable that receives the index of the first occurrence of
+ *                      `needle`.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the needle was found, `ZYAN_STATUS_FALSE`, if not, or another
+ *          zyan status code, if an error occured.
+ *
+ * The `found_index` is set to `-1`, if the needle was not found.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringLPosI(const ZyanStringView* haystack,
+    const ZyanStringView* needle, ZyanISize* found_index);
+
+/**
+ * Performs a case-insensitive search for the first occurrence of `needle` in the given
+ * `haystack` starting from the left.
+ *
+ * @param   haystack    The string to search in.
+ * @param   needle      The sub-string to search for.
+ * @param   found_index A pointer to a variable that receives the index of the first occurrence of
+ *                      `needle`.
+ * @param   index       The start index.
+ * @param   count       The maximum number of characters to iterate, beginning from the start
+ *                      `index`.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the needle was found, `ZYAN_STATUS_FALSE`, if not, or another
+ *          zyan status code, if an error occurred.
+ *
+ * The `found_index` is set to `-1`, if the needle was not found.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringLPosIEx(const ZyanStringView* haystack,
+    const ZyanStringView* needle, ZyanISize* found_index, ZyanUSize index, ZyanUSize count);
+
+/**
+ * Searches for the first occurrence of `needle` in the given `haystack` starting from the
+ * right.
+ *
+ * @param   haystack    The string to search in.
+ * @param   needle      The sub-string to search for.
+ * @param   found_index A pointer to a variable that receives the index of the first occurrence of
+ *                      `needle`.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the needle was found, `ZYAN_STATUS_FALSE`, if not, or another
+ *          zyan status code, if an error occurred.
+ *
+ * The `found_index` is set to `-1`, if the needle was not found.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringRPos(const ZyanStringView* haystack,
+    const ZyanStringView* needle, ZyanISize* found_index);
+
+/**
+ * Searches for the first occurrence of `needle` in the given `haystack` starting from the
+ *          right.
+ *
+ * @param   haystack    The string to search in.
+ * @param   needle      The sub-string to search for.
+ * @param   found_index A pointer to a variable that receives the index of the first occurrence of
+ *                      `needle`.
+ * @param   index       The start index.
+ * @param   count       The maximum number of characters to iterate, beginning from the start
+ *                      `index`.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the needle was found, `ZYAN_STATUS_FALSE`, if not, or another
+ *          zyan status code, if an error occurred.
+ *
+ * The `found_index` is set to `-1`, if the needle was not found.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringRPosEx(const ZyanStringView* haystack,
+    const ZyanStringView* needle, ZyanISize* found_index, ZyanUSize index, ZyanUSize count);
+
+/**
+ * Performs a case-insensitive search for the first occurrence of `needle` in the given
+ * `haystack` starting from the right.
+ *
+ * @param   haystack    The string to search in.
+ * @param   needle      The sub-string to search for.
+ * @param   found_index A pointer to a variable that receives the index of the first occurrence of
+ *                      `needle`.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the needle was found, `ZYAN_STATUS_FALSE`, if not, or another
+ *          zyan status code, if an error occurred.
+ *
+ * The `found_index` is set to `-1`, if the needle was not found.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringRPosI(const ZyanStringView* haystack,
+    const ZyanStringView* needle, ZyanISize* found_index);
+
+/**
+ * Performs a case-insensitive search for the first occurrence of `needle` in the given
+ * `haystack` starting from the right.
+ *
+ * @param   haystack    The string to search in.
+ * @param   needle      The sub-string to search for.
+ * @param   found_index A pointer to a variable that receives the index of the first occurrence of
+ *                      `needle`.
+ * @param   index       The start index.
+ * @param   count       The maximum number of characters to iterate, beginning from the start
+ *                      `index`.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the needle was found, `ZYAN_STATUS_FALSE`, if not, or another
+ *          zyan status code, if an error occurred.
+ *
+ * The `found_index` is set to `-1`, if the needle was not found.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringRPosIEx(const ZyanStringView* haystack,
+    const ZyanStringView* needle, ZyanISize* found_index, ZyanUSize index, ZyanUSize count);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Comparing                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Compares two strings.
+ *
+ * @param   s1      The first string
+ * @param   s2      The second string.
+ * @param   result  Receives the comparison result.
+ *
+ *                  Values:
+ *                  - `result  < 0` -> The first character that does not match has a lower value
+ *                    in `s1` than in `s2`.
+ *                  - `result == 0` -> The contents of both strings are equal.
+ *                  - `result  > 0` -> The first character that does not match has a greater value
+ *                    in `s1` than in `s2`.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the strings are equal, `ZYAN_STATUS_FALSE`, if not, or another
+ *          zyan status code, if an error occurred.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringCompare(const ZyanStringView* s1, const ZyanStringView* s2,
+    ZyanI32* result);
+
+/**
+ * Performs a case-insensitive comparison of two strings.
+ *
+ * @param   s1      The first string
+ * @param   s2      The second string.
+ * @param   result  Receives the comparison result.
+ *
+ *                  Values:
+ *                  - `result  < 0` -> The first character that does not match has a lower value
+ *                    in `s1` than in `s2`.
+ *                  - `result == 0` -> The contents of both strings are equal.
+ *                  - `result  > 0` -> The first character that does not match has a greater value
+ *                    in `s1` than in `s2`.
+ *
+ * @return  `ZYAN_STATUS_TRUE`, if the strings are equal, `ZYAN_STATUS_FALSE`, if not, or another
+ *          zyan status code, if an error occurred.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringCompareI(const ZyanStringView* s1, const ZyanStringView* s2,
+    ZyanI32* result);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Case conversion                                                                                */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Converts the given string to lowercase letters.
+ *
+ * @param   string      A pointer to the `ZyanString` instance.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringToLowerCase(ZyanString* string);
+
+/**
+ * Converts `count` characters of the given string to lowercase letters.
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ * @param   index   The start index.
+ * @param   count   The number of characters to convert, beginning from the start `index`.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringToLowerCaseEx(ZyanString* string, ZyanUSize index,
+    ZyanUSize count);
+
+/**
+ * Converts the given string to uppercase letters.
+ *
+ * @param   string      A pointer to the `ZyanString` instance.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringToUpperCase(ZyanString* string);
+
+/**
+ * Converts `count` characters of the given string to uppercase letters.
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ * @param   index   The start index.
+ * @param   count   The number of characters to convert, beginning from the start `index`.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringToUpperCaseEx(ZyanString* string, ZyanUSize index,
+    ZyanUSize count);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Memory management                                                                              */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Resizes the given `ZyanString` instance.
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ * @param   size    The new size of the string.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringResize(ZyanString* string, ZyanUSize size);
+
+/**
+ * Changes the capacity of the given `ZyanString` instance.
+ *
+ * @param   string      A pointer to the `ZyanString` instance.
+ * @param   capacity    The new minimum capacity of the string.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringReserve(ZyanString* string, ZyanUSize capacity);
+
+/**
+ * Shrinks the capacity of the given string to match it's size.
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ *
+ * @return  A zyan status code.
+ *
+ * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified
+ * `ZyanString` instance.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringShrinkToFit(ZyanString* string);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Information                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns the current capacity of the string.
+ *
+ * @param   string      A pointer to the `ZyanString` instance.
+ * @param   capacity    Receives the size of the string.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringGetCapacity(const ZyanString* string, ZyanUSize* capacity);
+
+/**
+ * Returns the current size (number of characters) of the string (excluding the
+ * terminating zero character).
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ * @param   size    Receives the size (number of characters) of the string.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringGetSize(const ZyanString* string, ZyanUSize* size);
+
+/**
+ * Returns the C-style string of the given `ZyanString` instance.
+ *
+ * @param   string  A pointer to the `ZyanString` instance.
+ * @param   value   Receives a pointer to the C-style string.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanStringGetData(const ZyanString* string, const char** value);
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // ZYCORE_STRING_H
diff --git a/js/src/zydis/Zycore/Types.h b/js/src/zydis/Zycore/Types.h
new file mode 100644
index 0000000000..5f22b74dc0
--- /dev/null
+++ b/js/src/zydis/Zycore/Types.h
@@ -0,0 +1,340 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zyan-C)
+
+  Original Author : Florian Bernd, Joel Hoener
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Includes and defines some default data types.
+ */
+
+#ifndef ZYCORE_TYPES_H
+#define ZYCORE_TYPES_H
+
+#include "zydis/Zycore/Defines.h"
+
+/* ============================================================================================== */
+/* Integer types                                                                                  */
+/* ============================================================================================== */
+
+#if defined(ZYAN_NO_LIBC) || \
+    (defined(ZYAN_MSVC) && defined(ZYAN_KERNEL)) // The WDK LibC lacks stdint.h.
+    // No LibC mode, use compiler built-in types / macros.
+#   if defined(ZYAN_MSVC) || defined(ZYAN_ICC)
+        typedef unsigned __int8                 ZyanU8;
+        typedef unsigned __int16                ZyanU16;
+        typedef unsigned __int32                ZyanU32;
+        typedef unsigned __int64                ZyanU64;
+        typedef   signed __int8                 ZyanI8;
+        typedef   signed __int16                ZyanI16;
+        typedef   signed __int32                ZyanI32;
+        typedef   signed __int64                ZyanI64;
+#       if _WIN64
+           typedef ZyanU64                      ZyanUSize;
+           typedef ZyanI64                      ZyanISize;
+           typedef ZyanU64                      ZyanUPointer;
+           typedef ZyanI64                      ZyanIPointer;
+#       else
+           typedef ZyanU32                      ZyanUSize;
+           typedef ZyanI32                      ZyanISize;
+           typedef ZyanU32                      ZyanUPointer;
+           typedef ZyanI32                      ZyanIPointer;
+#       endif
+#   elif defined(ZYAN_GNUC)
+#       ifdef __UINT8_TYPE__
+            typedef __UINT8_TYPE__              ZyanU8;
+#       else
+            typedef unsigned char               ZyanU8;
+#       endif
+#       ifdef __UINT16_TYPE__
+            typedef __UINT16_TYPE__             ZyanU16;
+#       else
+            typedef unsigned short int          ZyanU16;
+#       endif
+#       ifdef __UINT32_TYPE__
+            typedef __UINT32_TYPE__             ZyanU32;
+#       else
+            typedef unsigned int                ZyanU32;
+#       endif
+#       ifdef __UINT64_TYPE__
+            typedef __UINT64_TYPE__             ZyanU64;
+#       else
+#           if defined(__x86_64__) && !defined(__ILP32__)
+                typedef unsigned long int       ZyanU64;
+#           else
+                typedef unsigned long long int  ZyanU64;
+#           endif
+#       endif
+#       ifdef __INT8_TYPE__
+            typedef __INT8_TYPE__               ZyanI8;
+#       else
+            typedef signed char                 ZyanI8;
+#       endif
+#       ifdef __INT16_TYPE__
+            typedef __INT16_TYPE__              ZyanI16;
+#       else
+            typedef signed short int            ZyanI16;
+#       endif
+#       ifdef __INT32_TYPE__
+            typedef __INT32_TYPE__              ZyanI32;
+#       else
+            typedef signed int                  ZyanI32;
+#       endif
+#       ifdef __INT64_TYPE__
+            typedef __INT64_TYPE__              ZyanI64;
+#       else
+#           if defined(__x86_64__) && !defined( __ILP32__)
+                typedef signed long int         ZyanI64;
+#           else
+                typedef signed long long int    ZyanI64;
+#           endif
+#       endif
+#       ifdef __SIZE_TYPE__
+            typedef __SIZE_TYPE__               ZyanUSize;
+#       else
+            typedef long unsigned int           ZyanUSize;
+#       endif
+#       ifdef __PTRDIFF_TYPE__
+            typedef __PTRDIFF_TYPE__            ZyanISize;
+#       else
+            typedef long int                    ZyanISize;
+#       endif
+#       ifdef __UINTPTR_TYPE__
+            typedef __UINTPTR_TYPE__            ZyanUPointer;
+#       else
+#           if defined(__x86_64__) && !defined( __ILP32__)
+                typedef unsigned long int       ZyanUPointer;
+#           else
+                typedef unsigned int            ZyanUPointer;
+#           endif
+#       endif
+#       ifdef __INTPTR_TYPE__
+            typedef __INTPTR_TYPE__             ZyanIPointer;
+#       else
+#           if defined(__x86_64__) && !defined( __ILP32__)
+                typedef long int                ZyanIPointer;
+#           else
+                typedef int                     ZyanIPointer;
+#           endif
+#       endif
+#   else
+#       error "Unsupported compiler for no-libc mode."
+#   endif
+
+#   if defined(ZYAN_MSVC)
+#       define ZYAN_INT8_MIN            (-127i8 - 1)
+#       define ZYAN_INT16_MIN           (-32767i16 - 1)
+#       define ZYAN_INT32_MIN           (-2147483647i32 - 1)
+#       define ZYAN_INT64_MIN           (-9223372036854775807i64 - 1)
+#       define ZYAN_INT8_MAX            127i8
+#       define ZYAN_INT16_MAX           32767i16
+#       define ZYAN_INT32_MAX           2147483647i32
+#       define ZYAN_INT64_MAX           9223372036854775807i64
+#       define ZYAN_UINT8_MAX           0xffui8
+#       define ZYAN_UINT16_MAX          0xffffui16
+#       define ZYAN_UINT32_MAX          0xffffffffui32
+#       define ZYAN_UINT64_MAX          0xffffffffffffffffui64
+#   else
+#       ifdef __INT8_MAX__
+#           define ZYAN_INT8_MAX        __INT8_MAX__
+#       else
+#           define ZYAN_INT8_MAX        (127)
+#       endif
+#       define ZYAN_INT8_MIN            (-ZYAN_INT8_MAX - 1)
+#       ifdef __INT16_MAX__
+#           define ZYAN_INT16_MAX       __INT16_MAX__
+#       else
+#           define ZYAN_INT16_MAX       (32767)
+#       endif
+#       define ZYAN_INT16_MIN           (-ZYAN_INT16_MAX - 1)
+#       ifdef __INT32_MAX__
+#           define ZYAN_INT32_MAX       __INT32_MAX__
+#       else
+#           define ZYAN_INT32_MAX       (2147483647)
+#       endif
+#       define ZYAN_INT32_MIN           (-ZYAN_INT32_MAX - 1)
+#       ifdef __INT64_MAX__
+#           define ZYAN_INT64_MAX       __INT64_MAX__
+#       else
+#           if defined(__x86_64__) && !defined( __ILP32__)
+#               define ZYAN_INT64_MAX   (9223372036854775807L)
+#           else
+#               define ZYAN_INT64_MAX   (9223372036854775807LL)
+#           endif
+#       endif
+#       define ZYAN_INT64_MIN           (-ZYAN_INT64_MAX - 1)
+#       ifdef __UINT8_MAX__
+#           define ZYAN_UINT8_MAX       __UINT8_MAX__
+#       else
+#           define ZYAN_UINT8_MAX       (255)
+#       endif
+#       ifdef __UINT16_MAX__
+#           define ZYAN_UINT16_MAX      __UINT16_MAX__
+#       else
+#           define ZYAN_UINT16_MAX      (65535)
+#       endif
+#       ifdef __UINT32_MAX__
+#           define ZYAN_UINT32_MAX      __UINT32_MAX__
+#       else
+#           define ZYAN_UINT32_MAX      (4294967295U)
+#       endif
+#       ifdef __UINT64_MAX__
+#           define ZYAN_UINT64_MAX      __UINT64_MAX__
+#       else
+#           if defined(__x86_64__) && !defined( __ILP32__)
+#               define ZYAN_UINT64_MAX  (18446744073709551615UL)
+#           else
+#               define ZYAN_UINT64_MAX  (18446744073709551615ULL)
+#           endif
+#       endif
+#   endif
+#else
+    // If is LibC present, we use stdint types.
+#   include <stdint.h>
+#   include <stddef.h>
+    typedef uint8_t   ZyanU8;
+    typedef uint16_t  ZyanU16;
+    typedef uint32_t  ZyanU32;
+    typedef uint64_t  ZyanU64;
+    typedef int8_t    ZyanI8;
+    typedef int16_t   ZyanI16;
+    typedef int32_t   ZyanI32;
+    typedef int64_t   ZyanI64;
+    typedef size_t    ZyanUSize;
+    typedef ptrdiff_t ZyanISize;
+    typedef uintptr_t ZyanUPointer;
+    typedef intptr_t  ZyanIPointer;
+
+#   define ZYAN_INT8_MIN         INT8_MIN
+#   define ZYAN_INT16_MIN        INT16_MIN
+#   define ZYAN_INT32_MIN        INT32_MIN
+#   define ZYAN_INT64_MIN        INT64_MIN
+#   define ZYAN_INT8_MAX         INT8_MAX
+#   define ZYAN_INT16_MAX        INT16_MAX
+#   define ZYAN_INT32_MAX        INT32_MAX
+#   define ZYAN_INT64_MAX        INT64_MAX
+#   define ZYAN_UINT8_MAX        UINT8_MAX
+#   define ZYAN_UINT16_MAX       UINT16_MAX
+#   define ZYAN_UINT32_MAX       UINT32_MAX
+#   define ZYAN_UINT64_MAX       UINT64_MAX
+#endif
+
+// Verify size assumptions.
+ZYAN_STATIC_ASSERT(sizeof(ZyanU8      ) == 1            );
+ZYAN_STATIC_ASSERT(sizeof(ZyanU16     ) == 2            );
+ZYAN_STATIC_ASSERT(sizeof(ZyanU32     ) == 4            );
+ZYAN_STATIC_ASSERT(sizeof(ZyanU64     ) == 8            );
+ZYAN_STATIC_ASSERT(sizeof(ZyanI8      ) == 1            );
+ZYAN_STATIC_ASSERT(sizeof(ZyanI16     ) == 2            );
+ZYAN_STATIC_ASSERT(sizeof(ZyanI32     ) == 4            );
+ZYAN_STATIC_ASSERT(sizeof(ZyanI64     ) == 8            );
+ZYAN_STATIC_ASSERT(sizeof(ZyanUSize   ) == sizeof(void*)); // TODO: This one is incorrect!
+ZYAN_STATIC_ASSERT(sizeof(ZyanISize   ) == sizeof(void*)); // TODO: This one is incorrect!
+ZYAN_STATIC_ASSERT(sizeof(ZyanUPointer) == sizeof(void*));
+ZYAN_STATIC_ASSERT(sizeof(ZyanIPointer) == sizeof(void*));
+
+// Verify signedness assumptions (relies on size checks above).
+ZYAN_STATIC_ASSERT((ZyanI8 )-1 >> 1 < (ZyanI8 )((ZyanU8 )-1 >> 1));
+ZYAN_STATIC_ASSERT((ZyanI16)-1 >> 1 < (ZyanI16)((ZyanU16)-1 >> 1));
+ZYAN_STATIC_ASSERT((ZyanI32)-1 >> 1 < (ZyanI32)((ZyanU32)-1 >> 1));
+ZYAN_STATIC_ASSERT((ZyanI64)-1 >> 1 < (ZyanI64)((ZyanU64)-1 >> 1));
+
+/* ============================================================================================== */
+/* Pointer                                                                                        */
+/* ============================================================================================== */
+
+/**
+ * Defines the `ZyanVoidPointer` data-type.
+ */
+typedef void* ZyanVoidPointer;
+
+/**
+ * Defines the `ZyanConstVoidPointer` data-type.
+ */
+typedef const void* ZyanConstVoidPointer;
+
+#define ZYAN_NULL ((void*)0)
+
+/* ============================================================================================== */
+/* Logic types                                                                                    */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Boolean                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+#define ZYAN_FALSE 0u
+#define ZYAN_TRUE  1u
+
+/**
+ * Defines the `ZyanBool` data-type.
+ *
+ * Represents a default boolean data-type where `0` is interpreted as `false` and all other values
+ * as `true`.
+ */
+typedef ZyanU8 ZyanBool;
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Ternary                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Defines the `ZyanTernary` data-type.
+ *
+ * The `ZyanTernary` is a balanced ternary type that uses three truth values indicating `true`,
+ * `false` and an indeterminate third value.
+ */
+typedef ZyanI8 ZyanTernary;
+
+#define ZYAN_TERNARY_FALSE    (-1)
+#define ZYAN_TERNARY_UNKNOWN  0x00
+#define ZYAN_TERNARY_TRUE     0x01
+
+/* ============================================================================================== */
+/* String types                                                                                   */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* C-style strings                                                                                */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Defines the `ZyanCharPointer` data-type.
+ *
+ * This type is most often used to represent null-terminated strings aka. C-style strings.
+ */
+typedef char* ZyanCharPointer;
+
+/**
+ * Defines the `ZyanConstCharPointer` data-type.
+ *
+ * This type is most often used to represent null-terminated strings aka. C-style strings.
+ */
+typedef const char* ZyanConstCharPointer;
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#endif /* ZYCORE_TYPES_H */
diff --git a/js/src/zydis/Zycore/Vector.c b/js/src/zydis/Zycore/Vector.c
new file mode 100644
index 0000000000..a2ef20e3e9
--- /dev/null
+++ b/js/src/zydis/Zycore/Vector.c
@@ -0,0 +1,846 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#include "zydis/Zycore/LibC.h"
+#include "zydis/Zycore/Vector.h"
+
+/* ============================================================================================== */
+/* Internal macros                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Checks, if the passed vector should grow.
+ *
+ * @param   size        The desired size of the vector.
+ * @param   capacity    The current capacity of the vector.
+ *
+ * @return  `ZYAN_TRUE`, if the vector should grow or `ZYAN_FALSE`, if not.
+ */
+#define ZYCORE_VECTOR_SHOULD_GROW(size, capacity) \
+    ((size) > (capacity))
+
+/**
+ * Checks, if the passed vector should shrink.
+ *
+ * @param   size        The desired size of the vector.
+ * @param   capacity    The current capacity of the vector.
+ * @param   threshold   The shrink threshold.
+ *
+ * @return  `ZYAN_TRUE`, if the vector should shrink or `ZYAN_FALSE`, if not.
+ */
+#define ZYCORE_VECTOR_SHOULD_SHRINK(size, capacity, threshold) \
+    (((threshold) != 0) && ((size) * (threshold) < (capacity)))
+
+/**
+ * Returns the offset of the element at the given `index`.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   index   The element index.
+ *
+ * @return  The offset of the element at the given `index`.
+ */
+#define ZYCORE_VECTOR_OFFSET(vector, index) \
+    ((void*)((ZyanU8*)(vector)->data + ((index) * (vector)->element_size)))
+
+/* ============================================================================================== */
+/* Internal functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Helper functions                                                                               */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Reallocates the internal buffer of the vector.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   capacity    The new capacity.
+ *
+ * @return  A zyan status code.
+ */
+static ZyanStatus ZyanVectorReallocate(ZyanVector* vector, ZyanUSize capacity)
+{
+    ZYAN_ASSERT(vector);
+    ZYAN_ASSERT(vector->capacity >= ZYAN_VECTOR_MIN_CAPACITY);
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    if (!vector->allocator)
+    {
+        if (vector->capacity < capacity)
+        {
+            return ZYAN_STATUS_INSUFFICIENT_BUFFER_SIZE;
+        }
+        return ZYAN_STATUS_SUCCESS;
+    }
+
+    ZYAN_ASSERT(vector->allocator);
+    ZYAN_ASSERT(vector->allocator->reallocate);
+
+    if (capacity < ZYAN_VECTOR_MIN_CAPACITY)
+    {
+        if (vector->capacity > ZYAN_VECTOR_MIN_CAPACITY)
+        {
+            capacity = ZYAN_VECTOR_MIN_CAPACITY;
+        } else
+        {
+            return ZYAN_STATUS_SUCCESS;
+        }
+    }
+
+    vector->capacity = capacity;
+    ZYAN_CHECK(vector->allocator->reallocate(vector->allocator, &vector->data,
+        vector->element_size, vector->capacity));
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/**
+ * Shifts all elements starting at the specified `index` by the amount of `count` to the left.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   index   The start index.
+ * @param   count   The amount of shift operations.
+ *
+ * @return  A zyan status code.
+ */
+static ZyanStatus ZyanVectorShiftLeft(ZyanVector* vector, ZyanUSize index, ZyanUSize count)
+{
+    ZYAN_ASSERT(vector);
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+    ZYAN_ASSERT(count > 0);
+    //ZYAN_ASSERT((ZyanISize)count - (ZyanISize)index + 1 >= 0);
+
+    const void* const source = ZYCORE_VECTOR_OFFSET(vector, index + count);
+    void* const dest         = ZYCORE_VECTOR_OFFSET(vector, index);
+    const ZyanUSize size     = (vector->size - index - count) * vector->element_size;
+    ZYAN_MEMMOVE(dest, source, size);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/**
+ * Shifts all elements starting at the specified `index` by the amount of `count` to the right.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   index   The start index.
+ * @param   count   The amount of shift operations.
+ *
+ * @return  A zyan status code.
+ */
+static ZyanStatus ZyanVectorShiftRight(ZyanVector* vector, ZyanUSize index, ZyanUSize count)
+{
+    ZYAN_ASSERT(vector);
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+    ZYAN_ASSERT(count > 0);
+    ZYAN_ASSERT(vector->size + count <= vector->capacity);
+
+    const void* const source = ZYCORE_VECTOR_OFFSET(vector, index);
+    void* const dest         = ZYCORE_VECTOR_OFFSET(vector, index + count);
+    const ZyanUSize size     = (vector->size - index) * vector->element_size;
+    ZYAN_MEMMOVE(dest, source, size);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Constructor and destructor                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+ZyanStatus ZyanVectorInit(ZyanVector* vector, ZyanUSize element_size, ZyanUSize capacity,
+    ZyanMemberProcedure destructor)
+{
+    return ZyanVectorInitEx(vector, element_size, capacity, destructor, ZyanAllocatorDefault(),
+        ZYAN_VECTOR_DEFAULT_GROWTH_FACTOR, ZYAN_VECTOR_DEFAULT_SHRINK_THRESHOLD);
+}
+
+#endif // ZYAN_NO_LIBC
+
+ZyanStatus ZyanVectorInitEx(ZyanVector* vector, ZyanUSize element_size, ZyanUSize capacity,
+    ZyanMemberProcedure destructor, ZyanAllocator* allocator, ZyanU8 growth_factor,
+    ZyanU8 shrink_threshold)
+{
+    if (!vector || !element_size || !allocator || (growth_factor < 1))
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZYAN_ASSERT(allocator->allocate);
+
+    vector->allocator        = allocator;
+    vector->growth_factor    = growth_factor;
+    vector->shrink_threshold = shrink_threshold;
+    vector->size             = 0;
+    vector->capacity         = ZYAN_MAX(ZYAN_VECTOR_MIN_CAPACITY, capacity);
+    vector->element_size     = element_size;
+    vector->destructor       = destructor;
+    vector->data             = ZYAN_NULL;
+
+    return allocator->allocate(vector->allocator, &vector->data, vector->element_size,
+        vector->capacity);
+}
+
+ZyanStatus ZyanVectorInitCustomBuffer(ZyanVector* vector, ZyanUSize element_size,
+    void* buffer, ZyanUSize capacity, ZyanMemberProcedure destructor)
+{
+    if (!vector || !element_size || !buffer || !capacity)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    vector->allocator        = ZYAN_NULL;
+    vector->growth_factor    = 1;
+    vector->shrink_threshold = 0;
+    vector->size             = 0;
+    vector->capacity         = capacity;
+    vector->element_size     = element_size;
+    vector->destructor       = destructor;
+    vector->data             = buffer;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanVectorDestroy(ZyanVector* vector)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    if (vector->destructor)
+    {
+        for (ZyanUSize i = 0; i < vector->size; ++i)
+        {
+            vector->destructor(ZYCORE_VECTOR_OFFSET(vector, i));
+        }
+    }
+
+    if (vector->allocator && vector->capacity)
+    {
+        ZYAN_ASSERT(vector->allocator->deallocate);
+        ZYAN_CHECK(vector->allocator->deallocate(vector->allocator, vector->data,
+            vector->element_size, vector->capacity));
+    }
+
+    vector->data = ZYAN_NULL;
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Duplication                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+ZyanStatus ZyanVectorDuplicate(ZyanVector* destination, const ZyanVector* source,
+    ZyanUSize capacity)
+{
+    return ZyanVectorDuplicateEx(destination, source, capacity, ZyanAllocatorDefault(),
+        ZYAN_VECTOR_DEFAULT_GROWTH_FACTOR, ZYAN_VECTOR_DEFAULT_SHRINK_THRESHOLD);
+}
+
+#endif // ZYAN_NO_LIBC
+
+ZyanStatus ZyanVectorDuplicateEx(ZyanVector* destination, const ZyanVector* source,
+    ZyanUSize capacity, ZyanAllocator* allocator, ZyanU8 growth_factor, ZyanU8 shrink_threshold)
+{
+    if (!source)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    const ZyanUSize len = source->size;
+
+    capacity = ZYAN_MAX(capacity, len);
+    ZYAN_CHECK(ZyanVectorInitEx(destination, source->element_size, capacity, source->destructor,
+        allocator, growth_factor, shrink_threshold));
+    ZYAN_ASSERT(destination->capacity >= len);
+
+    ZYAN_MEMCPY(destination->data, source->data, len * source->element_size);
+    destination->size = len;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanVectorDuplicateCustomBuffer(ZyanVector* destination, const ZyanVector* source,
+    void* buffer, ZyanUSize capacity)
+{
+    if (!source)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    const ZyanUSize len = source->size;
+
+    if (capacity < len)
+    {
+        return ZYAN_STATUS_INSUFFICIENT_BUFFER_SIZE;
+    }
+
+    ZYAN_CHECK(ZyanVectorInitCustomBuffer(destination, source->element_size, buffer, capacity,
+        source->destructor));
+    ZYAN_ASSERT(destination->capacity >= len);
+
+    ZYAN_MEMCPY(destination->data, source->data, len * source->element_size);
+    destination->size = len;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Element access                                                                                 */
+/* ---------------------------------------------------------------------------------------------- */
+
+const void* ZyanVectorGet(const ZyanVector* vector, ZyanUSize index)
+{
+    if (!vector || (index >= vector->size))
+    {
+        return ZYAN_NULL;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    return ZYCORE_VECTOR_OFFSET(vector, index);
+}
+
+void* ZyanVectorGetMutable(const ZyanVector* vector, ZyanUSize index)
+{
+    if (!vector || (index >= vector->size))
+    {
+        return ZYAN_NULL;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    return ZYCORE_VECTOR_OFFSET(vector, index);
+}
+
+ZyanStatus ZyanVectorGetPointer(const ZyanVector* vector, ZyanUSize index, const void** value)
+{
+    if (!vector || !value)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (index >= vector->size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    *value = (const void*)ZYCORE_VECTOR_OFFSET(vector, index);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanVectorGetPointerMutable(const ZyanVector* vector, ZyanUSize index, void** value)
+{
+    if (!vector || !value)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (index >= vector->size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    *value = ZYCORE_VECTOR_OFFSET(vector, index);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanVectorSet(ZyanVector* vector, ZyanUSize index, const void* value)
+{
+    if (!vector || !value)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (index >= vector->size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    void* const offset = ZYCORE_VECTOR_OFFSET(vector, index);
+    if (vector->destructor)
+    {
+        vector->destructor(offset);
+    }
+    ZYAN_MEMCPY(offset, value, vector->element_size);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Insertion                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanVectorPushBack(ZyanVector* vector, const void* element)
+{
+    if (!vector || !element)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    if (ZYCORE_VECTOR_SHOULD_GROW(vector->size + 1, vector->capacity))
+    {
+        ZYAN_CHECK(ZyanVectorReallocate(vector,
+            ZYAN_MAX(1, (ZyanUSize)((vector->size + 1) * vector->growth_factor))));
+    }
+
+    void* const offset = ZYCORE_VECTOR_OFFSET(vector, vector->size);
+    ZYAN_MEMCPY(offset, element, vector->element_size);
+
+    ++vector->size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanVectorInsert(ZyanVector* vector, ZyanUSize index, const void* element)
+{
+    return ZyanVectorInsertRange(vector, index, element, 1);
+}
+
+ZyanStatus ZyanVectorInsertRange(ZyanVector* vector, ZyanUSize index, const void* elements,
+    ZyanUSize count)
+{
+    if (!vector || !elements || !count)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (index > vector->size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    if (ZYCORE_VECTOR_SHOULD_GROW(vector->size + count, vector->capacity))
+    {
+        ZYAN_CHECK(ZyanVectorReallocate(vector,
+            ZYAN_MAX(1, (ZyanUSize)((vector->size + count) * vector->growth_factor))));
+    }
+
+    if (index < vector->size)
+    {
+        ZYAN_CHECK(ZyanVectorShiftRight(vector, index, count));
+    }
+
+    void* const offset = ZYCORE_VECTOR_OFFSET(vector, index);
+    ZYAN_MEMCPY(offset, elements, count * vector->element_size);
+    vector->size += count;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanVectorEmplace(ZyanVector* vector, void** element, ZyanMemberFunction constructor)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanVectorEmplaceEx(vector, vector->size, element, constructor);
+}
+
+ZyanStatus ZyanVectorEmplaceEx(ZyanVector* vector, ZyanUSize index, void** element,
+    ZyanMemberFunction constructor)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (index > vector->size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    if (ZYCORE_VECTOR_SHOULD_GROW(vector->size + 1, vector->capacity))
+    {
+        ZYAN_CHECK(ZyanVectorReallocate(vector,
+            ZYAN_MAX(1, (ZyanUSize)((vector->size + 1) * vector->growth_factor))));
+    }
+
+    if (index < vector->size)
+    {
+        ZYAN_CHECK(ZyanVectorShiftRight(vector, index, 1));
+    }
+
+    *element = ZYCORE_VECTOR_OFFSET(vector, index);
+    if (constructor)
+    {
+        ZYAN_CHECK(constructor(*element));
+    }
+
+    ++vector->size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Utils                                                                                          */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanVectorSwapElements(ZyanVector* vector, ZyanUSize index_first, ZyanUSize index_second)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if ((index_first >= vector->size) || (index_second >= vector->size))
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    if (vector->size == vector->capacity)
+    {
+        return ZYAN_STATUS_INSUFFICIENT_BUFFER_SIZE;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    ZyanU64* const t = ZYCORE_VECTOR_OFFSET(vector, vector->size);
+    ZyanU64* const a = ZYCORE_VECTOR_OFFSET(vector, index_first);
+    ZyanU64* const b = ZYCORE_VECTOR_OFFSET(vector, index_second);
+    ZYAN_MEMCPY(t, a, vector->element_size);
+    ZYAN_MEMCPY(a, b, vector->element_size);
+    ZYAN_MEMCPY(b, t, vector->element_size);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Deletion                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanVectorDelete(ZyanVector* vector, ZyanUSize index)
+{
+    return ZyanVectorDeleteRange(vector, index, 1);
+}
+
+ZyanStatus ZyanVectorDeleteRange(ZyanVector* vector, ZyanUSize index, ZyanUSize count)
+{
+    if (!vector || !count)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (index + count > vector->size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    if (vector->destructor)
+    {
+        for (ZyanUSize i = index; i < index + count; ++i)
+        {
+            vector->destructor(ZYCORE_VECTOR_OFFSET(vector, i));
+        }
+    }
+
+    if (index + count < vector->size)
+    {
+        ZYAN_CHECK(ZyanVectorShiftLeft(vector, index, count));
+    }
+
+    vector->size -= count;
+    if (ZYCORE_VECTOR_SHOULD_SHRINK(vector->size, vector->capacity, vector->shrink_threshold))
+    {
+        return ZyanVectorReallocate(vector,
+            ZYAN_MAX(1, (ZyanUSize)(vector->size * vector->growth_factor)));
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanVectorPopBack(ZyanVector* vector)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (vector->size == 0)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    if (vector->destructor)
+    {
+         vector->destructor(ZYCORE_VECTOR_OFFSET(vector, vector->size - 1));
+    }
+
+    --vector->size;
+    if (ZYCORE_VECTOR_SHOULD_SHRINK(vector->size, vector->capacity, vector->shrink_threshold))
+    {
+        return ZyanVectorReallocate(vector,
+            ZYAN_MAX(1, (ZyanUSize)(vector->size * vector->growth_factor)));
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanVectorClear(ZyanVector* vector)
+{
+    return ZyanVectorResizeEx(vector, 0, ZYAN_NULL);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Searching                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanVectorFind(const ZyanVector* vector, const void* element, ZyanISize* found_index,
+    ZyanEqualityComparison comparison)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanVectorFindEx(vector, element, found_index, comparison, 0, vector->size);
+}
+
+ZyanStatus ZyanVectorFindEx(const ZyanVector* vector, const void* element, ZyanISize* found_index,
+    ZyanEqualityComparison comparison, ZyanUSize index, ZyanUSize count)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if ((index + count > vector->size) || (index == vector->size))
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    if (!count)
+    {
+        *found_index = -1;
+        return ZYAN_STATUS_FALSE;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    for (ZyanUSize i = index; i < index + count; ++i)
+    {
+        if (comparison(ZYCORE_VECTOR_OFFSET(vector, i), element))
+        {
+            *found_index = i;
+            return ZYAN_STATUS_TRUE;
+        }
+    }
+
+    *found_index = -1;
+    return ZYAN_STATUS_FALSE;
+}
+
+ZyanStatus ZyanVectorBinarySearch(const ZyanVector* vector, const void* element,
+    ZyanUSize* found_index, ZyanComparison comparison)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanVectorBinarySearchEx(vector, element, found_index, comparison, 0, vector->size);
+}
+
+ZyanStatus ZyanVectorBinarySearchEx(const ZyanVector* vector, const void* element,
+    ZyanUSize* found_index, ZyanComparison comparison, ZyanUSize index, ZyanUSize count)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (((index >= vector->size) && (count > 0)) || (index + count > vector->size))
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    if (!count)
+    {
+        *found_index = index;
+        return ZYAN_STATUS_FALSE;
+    }
+
+    ZYAN_ASSERT(vector->element_size);
+    ZYAN_ASSERT(vector->data);
+
+    ZyanStatus status = ZYAN_STATUS_FALSE;
+    ZyanISize l = index;
+    ZyanISize h = index + count - 1;
+    while (l <= h)
+    {
+        const ZyanUSize mid = l + ((h - l) >> 1);
+        const ZyanI32 cmp = comparison(ZYCORE_VECTOR_OFFSET(vector, mid), element);
+        if (cmp < 0)
+        {
+            l = mid + 1;
+        } else
+        {
+            h = mid - 1;
+            if (cmp == 0)
+            {
+                status = ZYAN_STATUS_TRUE;
+            }
+        }
+    }
+
+    *found_index = l;
+    return status;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Memory management                                                                              */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanVectorResize(ZyanVector* vector, ZyanUSize size)
+{
+    return ZyanVectorResizeEx(vector, size, ZYAN_NULL);
+}
+
+ZyanStatus ZyanVectorResizeEx(ZyanVector* vector, ZyanUSize size, const void* initializer)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (size == vector->size)
+    {
+        return ZYAN_STATUS_SUCCESS;
+    }
+
+    if (vector->destructor && (size < vector->size))
+    {
+        for (ZyanUSize i = size; i < vector->size; ++i)
+        {
+            vector->destructor(ZYCORE_VECTOR_OFFSET(vector, i));
+        }
+    }
+
+    if (ZYCORE_VECTOR_SHOULD_GROW(size, vector->capacity) ||
+        ZYCORE_VECTOR_SHOULD_SHRINK(size, vector->capacity, vector->shrink_threshold))
+    {
+        ZYAN_ASSERT(vector->growth_factor >= 1);
+        ZYAN_CHECK(ZyanVectorReallocate(vector, (ZyanUSize)(size * vector->growth_factor)));
+    }
+
+    if (initializer && (size > vector->size))
+    {
+        for (ZyanUSize i = vector->size; i < size; ++i)
+        {
+            ZYAN_MEMCPY(ZYCORE_VECTOR_OFFSET(vector, i), initializer, vector->element_size);
+        }
+    }
+
+    vector->size = size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanVectorReserve(ZyanVector* vector, ZyanUSize capacity)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    if (capacity > vector->capacity)
+    {
+        ZYAN_CHECK(ZyanVectorReallocate(vector, capacity));
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanVectorShrinkToFit(ZyanVector* vector)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanVectorReallocate(vector, vector->size);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Information                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanVectorGetCapacity(const ZyanVector* vector, ZyanUSize* capacity)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *capacity = vector->capacity;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanVectorGetSize(const ZyanVector* vector, ZyanUSize* size)
+{
+    if (!vector)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *size = vector->size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
diff --git a/js/src/zydis/Zycore/Vector.h b/js/src/zydis/Zycore/Vector.h
new file mode 100644
index 0000000000..98d07b2a1f
--- /dev/null
+++ b/js/src/zydis/Zycore/Vector.h
@@ -0,0 +1,722 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Implements the vector container class.
+ */
+
+#ifndef ZYCORE_VECTOR_H
+#define ZYCORE_VECTOR_H
+
+#include "zydis/Zycore/Allocator.h"
+#include "zydis/Zycore/Comparison.h"
+#include "zydis/Zycore/Object.h"
+#include "zydis/Zycore/Status.h"
+#include "zydis/Zycore/Types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ============================================================================================== */
+/* Constants                                                                                      */
+/* ============================================================================================== */
+
+/**
+ * The initial minimum capacity (number of elements) for all dynamically allocated vector
+ * instances.
+ */
+#define ZYAN_VECTOR_MIN_CAPACITY                1
+
+/**
+ * The default growth factor for all vector instances.
+ */
+#define ZYAN_VECTOR_DEFAULT_GROWTH_FACTOR       2
+
+/**
+ * The default shrink threshold for all vector instances.
+ */
+#define ZYAN_VECTOR_DEFAULT_SHRINK_THRESHOLD    4
+
+/* ============================================================================================== */
+/* Enums and types                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Defines the `ZyanVector` struct.
+ *
+ * All fields in this struct should be considered as "private". Any changes may lead to unexpected
+ * behavior.
+ */
+typedef struct ZyanVector_
+{
+    /**
+     * The memory allocator.
+     */
+    ZyanAllocator* allocator;
+    /**
+     * The growth factor.
+     */
+    ZyanU8 growth_factor;
+    /**
+     * The shrink threshold.
+     */
+    ZyanU8 shrink_threshold;
+    /**
+     * The current number of elements in the vector.
+     */
+    ZyanUSize size;
+    /**
+     * The maximum capacity (number of elements).
+     */
+    ZyanUSize capacity;
+    /**
+     * The size of a single element in bytes.
+     */
+    ZyanUSize element_size;
+    /**
+     * The element destructor callback.
+     */
+    ZyanMemberProcedure destructor;
+    /**
+     * The data pointer.
+     */
+    void* data;
+} ZyanVector;
+
+/* ============================================================================================== */
+/* Macros                                                                                         */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* General                                                                                        */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Defines an uninitialized `ZyanVector` instance.
+ */
+#define ZYAN_VECTOR_INITIALIZER \
+    { \
+        /* allocator        */ ZYAN_NULL, \
+        /* growth_factor    */ 0, \
+        /* shrink_threshold */ 0, \
+        /* size             */ 0, \
+        /* capacity         */ 0, \
+        /* element_size     */ 0, \
+        /* destructor       */ ZYAN_NULL, \
+        /* data             */ ZYAN_NULL \
+    }
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Helper macros                                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns the value of the element at the given `index`.
+ *
+ * @param   type    The desired value type.
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   index   The element index.
+ *
+ * @result  The value of the desired element in the vector.
+ *
+ * Note that this function is unsafe and might dereference a null-pointer.
+ */
+#ifdef __cplusplus
+#define ZYAN_VECTOR_GET(type, vector, index) \
+    (*reinterpret_cast<const type*>(ZyanVectorGet(vector, index)))
+#else
+#define ZYAN_VECTOR_GET(type, vector, index) \
+    (*(const type*)ZyanVectorGet(vector, index))
+#endif
+
+/**
+ * Loops through all elements of the vector.
+ *
+ * @param   type        The desired value type.
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   item_name   The name of the iterator item.
+ * @param   body        The body to execute for each item in the vector.
+ */
+#define ZYAN_VECTOR_FOREACH(type, vector, item_name, body) \
+    { \
+        const ZyanUSize ZYAN_MACRO_CONCAT_EXPAND(size_d50d3303, item_name) = (vector)->size; \
+        for (ZyanUSize ZYAN_MACRO_CONCAT_EXPAND(i_bfd62679, item_name) = 0; \
+            ZYAN_MACRO_CONCAT_EXPAND(i_bfd62679, item_name) < \
+            ZYAN_MACRO_CONCAT_EXPAND(size_d50d3303, item_name); \
+            ++ZYAN_MACRO_CONCAT_EXPAND(i_bfd62679, item_name)) \
+        { \
+            const type item_name = ZYAN_VECTOR_GET(type, vector, \
+                ZYAN_MACRO_CONCAT_EXPAND(i_bfd62679, item_name)); \
+            body \
+        } \
+    }
+
+/**
+ * Loops through all elements of the vector.
+ *
+ * @param   type        The desired value type.
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   item_name   The name of the iterator item.
+ * @param   body        The body to execute for each item in the vector.
+ */
+#define ZYAN_VECTOR_FOREACH_MUTABLE(type, vector, item_name, body) \
+    { \
+        const ZyanUSize ZYAN_MACRO_CONCAT_EXPAND(size_d50d3303, item_name) = (vector)->size; \
+        for (ZyanUSize ZYAN_MACRO_CONCAT_EXPAND(i_bfd62679, item_name) = 0; \
+            ZYAN_MACRO_CONCAT_EXPAND(i_bfd62679, item_name) < \
+            ZYAN_MACRO_CONCAT_EXPAND(size_d50d3303, item_name); \
+            ++ZYAN_MACRO_CONCAT_EXPAND(i_bfd62679, item_name)) \
+        { \
+            type* const item_name = ZyanVectorGetMutable(vector, \
+                ZYAN_MACRO_CONCAT_EXPAND(i_bfd62679, item_name)); \
+            body \
+        } \
+    }
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Constructor and destructor                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+/**
+ * Initializes the given `ZyanVector` instance.
+ *
+ * @param   vector          A pointer to the `ZyanVector` instance.
+ * @param   element_size    The size of a single element in bytes.
+ * @param   capacity        The initial capacity (number of elements).
+ * @param   destructor      A destructor callback that is invoked every time an item is deleted, or
+ *                          `ZYAN_NULL` if not needed.
+ *
+ * @return  A zyan status code.
+ *
+ * The memory for the vector elements is dynamically allocated by the default allocator using the
+ * default growth factor and the default shrink threshold.
+ *
+ * Finalization with `ZyanVectorDestroy` is required for all instances created by this function.
+ */
+ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanStatus ZyanVectorInit(ZyanVector* vector,
+    ZyanUSize element_size, ZyanUSize capacity, ZyanMemberProcedure destructor);
+
+#endif // ZYAN_NO_LIBC
+
+/**
+ * Initializes the given `ZyanVector` instance and sets a custom `allocator` and memory
+ * allocation/deallocation parameters.
+ *
+ * @param   vector              A pointer to the `ZyanVector` instance.
+ * @param   element_size        The size of a single element in bytes.
+ * @param   capacity            The initial capacity (number of elements).
+ * @param   destructor          A destructor callback that is invoked every time an item is deleted,
+ *                              or `ZYAN_NULL` if not needed.
+ * @param   allocator           A pointer to a `ZyanAllocator` instance.
+ * @param   growth_factor       The growth factor.
+ * @param   shrink_threshold    The shrink threshold.
+ *
+ * @return  A zyan status code.
+ *
+ * A growth factor of `1` disables overallocation and a shrink threshold of `0` disables
+ * dynamic shrinking.
+ *
+ * Finalization with `ZyanVectorDestroy` is required for all instances created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorInitEx(ZyanVector* vector, ZyanUSize element_size,
+    ZyanUSize capacity, ZyanMemberProcedure destructor, ZyanAllocator* allocator,
+    ZyanU8 growth_factor, ZyanU8 shrink_threshold);
+
+/**
+ * Initializes the given `ZyanVector` instance and configures it to use a custom user
+ * defined buffer with a fixed size.
+ *
+ * @param   vector          A pointer to the `ZyanVector` instance.
+ * @param   element_size    The size of a single element in bytes.
+ * @param   buffer          A pointer to the buffer that is used as storage for the elements.
+ * @param   capacity        The maximum capacity (number of elements) of the buffer.
+ * @param   destructor      A destructor callback that is invoked every time an item is deleted, or
+ *                          `ZYAN_NULL` if not needed.
+ *
+ * @return  A zyan status code.
+ *
+ * Finalization is not required for instances created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorInitCustomBuffer(ZyanVector* vector, ZyanUSize element_size,
+    void* buffer, ZyanUSize capacity, ZyanMemberProcedure destructor);
+
+/**
+ * Destroys the given `ZyanVector` instance.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance..
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorDestroy(ZyanVector* vector);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Duplication                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+/**
+ * Initializes a new `ZyanVector` instance by duplicating an existing vector.
+ *
+ * @param   destination A pointer to the (uninitialized) destination `ZyanVector` instance.
+ * @param   source      A pointer to the source vector.
+ * @param   capacity    The initial capacity (number of elements).
+ *
+ *                      This value is automatically adjusted to the size of the source vector, if
+ *                      a smaller value was passed.
+ *
+ * @return  A zyan status code.
+ *
+ * The memory for the vector is dynamically allocated by the default allocator using the default
+ * growth factor and the default shrink threshold.
+ *
+ * Finalization with `ZyanVectorDestroy` is required for all instances created by this function.
+ */
+ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanStatus ZyanVectorDuplicate(ZyanVector* destination,
+    const ZyanVector* source, ZyanUSize capacity);
+
+#endif // ZYAN_NO_LIBC
+
+/**
+ * Initializes a new `ZyanVector` instance by duplicating an existing vector and sets a
+ * custom `allocator` and memory allocation/deallocation parameters.
+ *
+ * @param   destination         A pointer to the (uninitialized) destination `ZyanVector` instance.
+ * @param   source              A pointer to the source vector.
+ * @param   capacity            The initial capacity (number of elements).
+
+ *                              This value is automatically adjusted to the size of the source
+ *                              vector, if a smaller value was passed.
+ * @param   allocator           A pointer to a `ZyanAllocator` instance.
+ * @param   growth_factor       The growth factor.
+ * @param   shrink_threshold    The shrink threshold.
+ *
+ * @return  A zyan status code.
+ *
+ * A growth factor of `1` disables overallocation and a shrink threshold of `0` disables
+ * dynamic shrinking.
+ *
+ * Finalization with `ZyanVectorDestroy` is required for all instances created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorDuplicateEx(ZyanVector* destination, const ZyanVector* source,
+    ZyanUSize capacity, ZyanAllocator* allocator, ZyanU8 growth_factor, ZyanU8 shrink_threshold);
+
+/**
+ * Initializes a new `ZyanVector` instance by duplicating an existing vector and
+ * configures it to use a custom user defined buffer with a fixed size.
+ *
+ * @param   destination A pointer to the (uninitialized) destination `ZyanVector` instance.
+ * @param   source      A pointer to the source vector.
+ * @param   buffer      A pointer to the buffer that is used as storage for the elements.
+ * @param   capacity    The maximum capacity (number of elements) of the buffer.
+
+ *                      This function will fail, if the capacity of the buffer is less than the
+ *                      size of the source vector.
+ *
+ * @return  A zyan status code.
+ *
+ * Finalization is not required for instances created by this function.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorDuplicateCustomBuffer(ZyanVector* destination,
+    const ZyanVector* source, void* buffer, ZyanUSize capacity);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Element access                                                                                 */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns a constant pointer to the element at the given `index`.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   index       The element index.
+ *
+ * @return  A constant pointer to the desired element in the vector or `ZYAN_NULL`, if an error
+ *          occurred.
+ *
+ * Note that the returned pointer might get invalid when the vector is resized by either a manual
+ * call to the memory-management functions or implicitly by inserting or removing elements.
+ *
+ * Take a look at `ZyanVectorGetPointer` instead, if you need a function that returns a zyan status
+ * code.
+ */
+ZYCORE_EXPORT const void* ZyanVectorGet(const ZyanVector* vector, ZyanUSize index);
+
+/**
+ * Returns a mutable pointer to the element at the given `index`.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   index       The element index.
+ *
+ * @return  A mutable pointer to the desired element in the vector or `ZYAN_NULL`, if an error
+ *          occurred.
+ *
+ * Note that the returned pointer might get invalid when the vector is resized by either a manual
+ * call to the memory-management functions or implicitly by inserting or removing elements.
+ *
+ * Take a look at `ZyanVectorGetPointerMutable` instead, if you need a function that returns a
+ * zyan status code.
+ */
+ZYCORE_EXPORT void* ZyanVectorGetMutable(const ZyanVector* vector, ZyanUSize index);
+
+/**
+ * Returns a constant pointer to the element at the given `index`.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   index   The element index.
+ * @param   value   Receives a constant pointer to the desired element in the vector.
+ *
+ * Note that the returned pointer might get invalid when the vector is resized by either a manual
+ * call to the memory-management functions or implicitly by inserting or removing elements.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorGetPointer(const ZyanVector* vector, ZyanUSize index,
+    const void** value);
+
+/**
+ * Returns a mutable pointer to the element at the given `index`.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   index   The element index.
+ * @param   value Receives a mutable pointer to the desired element in the vector.
+ *
+ * Note that the returned pointer might get invalid when the vector is resized by either a manual
+ * call to the memory-management functions or implicitly by inserting or removing elements.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorGetPointerMutable(const ZyanVector* vector, ZyanUSize index,
+    void** value);
+
+/**
+ * Assigns a new value to the element at the given `index`.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   index   The value index.
+ * @param   value   The value to assign.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorSet(ZyanVector* vector, ZyanUSize index,
+    const void* value);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Insertion                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Adds a new `element` to the end of the vector.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   element A pointer to the element to add.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorPushBack(ZyanVector* vector, const void* element);
+
+/**
+ * Inserts an `element` at the given `index` of the vector.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   index   The insert index.
+ * @param   element A pointer to the element to insert.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorInsert(ZyanVector* vector, ZyanUSize index,
+    const void* element);
+
+/**
+ * Inserts multiple `elements` at the given `index` of the vector.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   index       The insert index.
+ * @param   elements    A pointer to the first element.
+ * @param   count       The number of elements to insert.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorInsertRange(ZyanVector* vector, ZyanUSize index,
+    const void* elements, ZyanUSize count);
+
+/**
+ * Constructs an `element` in-place at the end of the vector.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   element     Receives a pointer to the new element.
+ * @param   constructor The constructor callback or `ZYAN_NULL`. The new element will be in
+ *                      undefined state, if no constructor was passed.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorEmplace(ZyanVector* vector, void** element,
+    ZyanMemberFunction constructor);
+
+/**
+ * Constructs an `element` in-place and inserts it at the given `index` of the vector.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   index       The insert index.
+ * @param   element     Receives a pointer to the new element.
+ * @param   constructor The constructor callback or `ZYAN_NULL`. The new element will be in
+ *                      undefined state, if no constructor was passed.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorEmplaceEx(ZyanVector* vector, ZyanUSize index,
+    void** element, ZyanMemberFunction constructor);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Utils                                                                                          */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Swaps the element at `index_first` with the element at `index_second`.
+ *
+ * @param   vector          A pointer to the `ZyanVector` instance.
+ * @param   index_first     The index of the first element.
+ * @param   index_second    The index of the second element.
+ *
+ * @return  A zyan status code.
+ *
+ * This function requires the vector to have spare capacity for one temporary element. Call
+ * `ZyanVectorReserve` before this function to increase capacity, if needed.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorSwapElements(ZyanVector* vector, ZyanUSize index_first,
+    ZyanUSize index_second);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Deletion                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Deletes the element at the given `index` of the vector.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   index   The element index.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorDelete(ZyanVector* vector, ZyanUSize index);
+
+/**
+ * Deletes multiple elements from the given vector, starting at `index`.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   index   The index of the first element to delete.
+ * @param   count   The number of elements to delete.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorDeleteRange(ZyanVector* vector, ZyanUSize index,
+    ZyanUSize count);
+
+/**
+ * Removes the last element of the vector.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorPopBack(ZyanVector* vector);
+
+/**
+ * Erases all elements of the given vector.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorClear(ZyanVector* vector);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Searching                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Sequentially searches for the first occurrence of `element` in the given vector.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   element     A pointer to the element to search for.
+ * @param   found_index A pointer to a variable that receives the index of the found element.
+ * @param   comparison  The comparison function to use.
+ *
+ * @return  `ZYAN_STATUS_TRUE` if the element was found, `ZYAN_STATUS_FALSE` if not or a generic
+ *          zyan status code if an error occurred.
+ *
+ * The `found_index` is set to `-1`, if the element was not found.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorFind(const ZyanVector* vector, const void* element,
+    ZyanISize* found_index, ZyanEqualityComparison comparison);
+
+/**
+ * Sequentially searches for the first occurrence of `element` in the given vector.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   element     A pointer to the element to search for.
+ * @param   found_index A pointer to a variable that receives the index of the found element.
+ * @param   comparison  The comparison function to use.
+ * @param   index       The start index.
+ * @param   count       The maximum number of elements to iterate, beginning from the start `index`.
+ *
+ * @return  `ZYAN_STATUS_TRUE` if the element was found, `ZYAN_STATUS_FALSE` if not or a generic
+ *          zyan status code if an error occurred.
+ *
+ * The `found_index` is set to `-1`, if the element was not found.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorFindEx(const ZyanVector* vector, const void* element,
+    ZyanISize* found_index, ZyanEqualityComparison comparison, ZyanUSize index, ZyanUSize count);
+
+/**
+ * Searches for the first occurrence of `element` in the given vector using a binary-
+ * search algorithm.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   element     A pointer to the element to search for.
+ * @param   found_index A pointer to a variable that receives the index of the found element.
+ * @param   comparison  The comparison function to use.
+ *
+ * @return  `ZYAN_STATUS_TRUE` if the element was found, `ZYAN_STATUS_FALSE` if not or a generic
+ *          zyan status code if an error occurred.
+ *
+ * If found, `found_index` contains the zero-based index of `element`. If not found, `found_index`
+ * contains the index of the first entry larger than `element`.
+ *
+ * This function requires all elements in the vector to be strictly ordered (sorted).
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorBinarySearch(const ZyanVector* vector, const void* element,
+    ZyanUSize* found_index, ZyanComparison comparison);
+
+/**
+ * Searches for the first occurrence of `element` in the given vector using a binary-
+ * search algorithm.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   element     A pointer to the element to search for.
+ * @param   found_index A pointer to a variable that receives the index of the found element.
+ * @param   comparison  The comparison function to use.
+ * @param   index       The start index.
+ * @param   count       The maximum number of elements to iterate, beginning from the start `index`.
+ *
+ * @return  `ZYAN_STATUS_TRUE` if the element was found, `ZYAN_STATUS_FALSE` if not or a generic
+ *          zyan status code if an error occurred.
+ *
+ * If found, `found_index` contains the zero-based index of `element`. If not found, `found_index`
+ * contains the index of the first entry larger than `element`.
+ *
+ * This function requires all elements in the vector to be strictly ordered (sorted).
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorBinarySearchEx(const ZyanVector* vector, const void* element,
+    ZyanUSize* found_index, ZyanComparison comparison, ZyanUSize index, ZyanUSize count);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Memory management                                                                              */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Resizes the given `ZyanVector` instance.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   size    The new size of the vector.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorResize(ZyanVector* vector, ZyanUSize size);
+
+/**
+ * Resizes the given `ZyanVector` instance.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   size        The new size of the vector.
+ * @param   initializer A pointer to a value to be used as initializer for new items.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorResizeEx(ZyanVector* vector, ZyanUSize size,
+    const void* initializer);
+
+/**
+ * Changes the capacity of the given `ZyanVector` instance.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   capacity    The new minimum capacity of the vector.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorReserve(ZyanVector* vector, ZyanUSize capacity);
+
+/**
+ * Shrinks the capacity of the given vector to match it's size.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorShrinkToFit(ZyanVector* vector);
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Information                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Returns the current capacity of the vector.
+ *
+ * @param   vector      A pointer to the `ZyanVector` instance.
+ * @param   capacity    Receives the size of the vector.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorGetCapacity(const ZyanVector* vector, ZyanUSize* capacity);
+
+/**
+ * Returns the current size of the vector.
+ *
+ * @param   vector  A pointer to the `ZyanVector` instance.
+ * @param   size    Receives the size of the vector.
+ *
+ * @return  A zyan status code.
+ */
+ZYCORE_EXPORT ZyanStatus ZyanVectorGetSize(const ZyanVector* vector, ZyanUSize* size);
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_VECTOR_H */
diff --git a/js/src/zydis/Zycore/Zycore.c b/js/src/zydis/Zycore/Zycore.c
new file mode 100644
index 0000000000..b938d3ae2f
--- /dev/null
+++ b/js/src/zydis/Zycore/Zycore.c
@@ -0,0 +1,38 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#include "zydis/Zycore/Zycore.h"
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+ZyanU64 ZycoreGetVersion(void)
+{
+    return ZYCORE_VERSION;
+}
+
+/* ============================================================================================== */
diff --git a/js/src/zydis/Zycore/Zycore.h b/js/src/zydis/Zycore/Zycore.h
new file mode 100644
index 0000000000..fe3f445efd
--- /dev/null
+++ b/js/src/zydis/Zycore/Zycore.h
@@ -0,0 +1,110 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+/**
+ * @file
+ * Master include file, including everything else.
+ */
+
+#ifndef ZYCORE_H
+#define ZYCORE_H
+
+#include "zydis/Zycore/Types.h"
+
+// TODO:
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ============================================================================================== */
+/* Macros                                                                                         */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Constants                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * A macro that defines the zycore version.
+ */
+#define ZYCORE_VERSION (ZyanU64)0x0001000500000000
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Helper macros                                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+/**
+ * Extracts the major-part of the zycore version.
+ *
+ * @param   version The zycore version value
+ */
+#define ZYCORE_VERSION_MAJOR(version) (ZyanU16)((version & 0xFFFF000000000000) >> 48)
+
+/**
+ * Extracts the minor-part of the zycore version.
+ *
+ * @param   version The zycore version value
+ */
+#define ZYCORE_VERSION_MINOR(version) (ZyanU16)((version & 0x0000FFFF00000000) >> 32)
+
+/**
+ * Extracts the patch-part of the zycore version.
+ *
+ * @param   version The zycore version value
+ */
+#define ZYCORE_VERSION_PATCH(version) (ZyanU16)((version & 0x00000000FFFF0000) >> 16)
+
+/**
+ * Extracts the build-part of the zycore version.
+ *
+ * @param   version The zycore version value
+ */
+#define ZYCORE_VERSION_BUILD(version) (ZyanU16)(version & 0x000000000000FFFF)
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/**
+ * Returns the zycore version.
+ *
+ * @return  The zycore version.
+ *
+ * Use the macros provided in this file to extract the major, minor, patch and build part from the
+ * returned version value.
+ */
+ZYCORE_EXPORT ZyanU64 ZycoreGetVersion(void);
+
+/* ============================================================================================== */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZYCORE_H */
diff --git a/js/src/zydis/Zycore/ZycoreString.c b/js/src/zydis/Zycore/ZycoreString.c
new file mode 100644
index 0000000000..4f11719e78
--- /dev/null
+++ b/js/src/zydis/Zycore/ZycoreString.c
@@ -0,0 +1,1098 @@
+/***************************************************************************************************
+
+  Zyan Core Library (Zycore-C)
+
+  Original Author : Florian Bernd
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+
+***************************************************************************************************/
+
+#include "zydis/Zycore/String.h"
+#include "zydis/Zycore/LibC.h"
+
+/* ============================================================================================== */
+/* Internal macros                                                                                */
+/* ============================================================================================== */
+
+/**
+ * Writes a terminating '\0' character at the end of the string data.
+ */
+#define ZYCORE_STRING_NULLTERMINATE(string) \
+      *(char*)((ZyanU8*)(string)->vector.data + (string)->vector.size - 1) = '\0';
+
+/**
+ * Checks for a terminating '\0' character at the end of the string data.
+ */
+#define ZYCORE_STRING_ASSERT_NULLTERMINATION(string) \
+      ZYAN_ASSERT(*(char*)((ZyanU8*)(string)->vector.data + (string)->vector.size - 1) == '\0');
+
+/* ============================================================================================== */
+/* Exported functions                                                                             */
+/* ============================================================================================== */
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Constructor and destructor                                                                     */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+ZyanStatus ZyanStringInit(ZyanString* string, ZyanUSize capacity)
+{
+    return ZyanStringInitEx(string, capacity, ZyanAllocatorDefault(),
+        ZYAN_STRING_DEFAULT_GROWTH_FACTOR, ZYAN_STRING_DEFAULT_SHRINK_THRESHOLD);
+}
+
+#endif // ZYAN_NO_LIBC
+
+ZyanStatus ZyanStringInitEx(ZyanString* string, ZyanUSize capacity, ZyanAllocator* allocator,
+    ZyanU8 growth_factor, ZyanU8 shrink_threshold)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    string->flags = 0;
+    capacity = ZYAN_MAX(ZYAN_STRING_MIN_CAPACITY, capacity) + 1;
+    ZYAN_CHECK(ZyanVectorInitEx(&string->vector, sizeof(char), capacity, ZYAN_NULL, allocator,
+        growth_factor, shrink_threshold));
+    ZYAN_ASSERT(string->vector.capacity >= capacity);
+    // Some of the string code relies on `sizeof(char) == 1`
+    ZYAN_ASSERT(string->vector.element_size == 1);
+
+    *(char*)string->vector.data = '\0';
+    ++string->vector.size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringInitCustomBuffer(ZyanString* string, char* buffer, ZyanUSize capacity)
+{
+    if (!string || !capacity)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    string->flags = ZYAN_STRING_HAS_FIXED_CAPACITY;
+    ZYAN_CHECK(ZyanVectorInitCustomBuffer(&string->vector, sizeof(char), (void*)buffer, capacity,
+        ZYAN_NULL));
+    ZYAN_ASSERT(string->vector.capacity == capacity);
+    // Some of the string code relies on `sizeof(char) == 1`
+    ZYAN_ASSERT(string->vector.element_size == 1);
+
+    *(char*)string->vector.data = '\0';
+    ++string->vector.size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringDestroy(ZyanString* string)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+    if (string->flags & ZYAN_STRING_HAS_FIXED_CAPACITY)
+    {
+        return ZYAN_STATUS_SUCCESS;
+    }
+
+    return ZyanVectorDestroy(&string->vector);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Duplication                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+ZyanStatus ZyanStringDuplicate(ZyanString* destination, const ZyanStringView* source,
+    ZyanUSize capacity)
+{
+    return ZyanStringDuplicateEx(destination, source, capacity, ZyanAllocatorDefault(),
+        ZYAN_STRING_DEFAULT_GROWTH_FACTOR, ZYAN_STRING_DEFAULT_SHRINK_THRESHOLD);
+}
+
+#endif // ZYAN_NO_LIBC
+
+ZyanStatus ZyanStringDuplicateEx(ZyanString* destination, const ZyanStringView* source,
+    ZyanUSize capacity, ZyanAllocator* allocator, ZyanU8 growth_factor, ZyanU8 shrink_threshold)
+{
+    if (!source || !source->string.vector.size)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    const ZyanUSize len = source->string.vector.size;
+    capacity = ZYAN_MAX(capacity, len - 1);
+    ZYAN_CHECK(ZyanStringInitEx(destination, capacity, allocator, growth_factor, shrink_threshold));
+    ZYAN_ASSERT(destination->vector.capacity >= len);
+
+    ZYAN_MEMCPY(destination->vector.data, source->string.vector.data,
+        source->string.vector.size - 1);
+    destination->vector.size = len;
+    ZYCORE_STRING_NULLTERMINATE(destination);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringDuplicateCustomBuffer(ZyanString* destination, const ZyanStringView* source,
+    char* buffer, ZyanUSize capacity)
+{
+    if (!source || !source->string.vector.size)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    const ZyanUSize len = source->string.vector.size;
+    if (capacity < len)
+    {
+        return ZYAN_STATUS_INSUFFICIENT_BUFFER_SIZE;
+    }
+
+    ZYAN_CHECK(ZyanStringInitCustomBuffer(destination, buffer, capacity));
+    ZYAN_ASSERT(destination->vector.capacity >= len);
+
+    ZYAN_MEMCPY(destination->vector.data, source->string.vector.data,
+        source->string.vector.size - 1);
+    destination->vector.size = len;
+    ZYCORE_STRING_NULLTERMINATE(destination);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Concatenation                                                                                  */
+/* ---------------------------------------------------------------------------------------------- */
+
+#ifndef ZYAN_NO_LIBC
+
+ZyanStatus ZyanStringConcat(ZyanString* destination, const ZyanStringView* s1,
+    const ZyanStringView* s2, ZyanUSize capacity)
+{
+    return ZyanStringConcatEx(destination, s1, s2, capacity, ZyanAllocatorDefault(),
+        ZYAN_STRING_DEFAULT_GROWTH_FACTOR, ZYAN_STRING_DEFAULT_SHRINK_THRESHOLD);
+}
+
+#endif // ZYAN_NO_LIBC
+
+ZyanStatus ZyanStringConcatEx(ZyanString* destination, const ZyanStringView* s1,
+    const ZyanStringView* s2, ZyanUSize capacity, ZyanAllocator* allocator, ZyanU8 growth_factor,
+    ZyanU8 shrink_threshold)
+{
+    if (!s1 || !s2 || !s1->string.vector.size || !s2->string.vector.size)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    const ZyanUSize len = s1->string.vector.size + s2->string.vector.size - 1;
+    capacity = ZYAN_MAX(capacity, len - 1);
+    ZYAN_CHECK(ZyanStringInitEx(destination, capacity, allocator, growth_factor, shrink_threshold));
+    ZYAN_ASSERT(destination->vector.capacity >= len);
+
+    ZYAN_MEMCPY(destination->vector.data, s1->string.vector.data, s1->string.vector.size - 1);
+    ZYAN_MEMCPY((char*)destination->vector.data + s1->string.vector.size - 1,
+        s2->string.vector.data, s2->string.vector.size - 1);
+    destination->vector.size = len;
+    ZYCORE_STRING_NULLTERMINATE(destination);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringConcatCustomBuffer(ZyanString* destination, const ZyanStringView* s1,
+    const ZyanStringView* s2, char* buffer, ZyanUSize capacity)
+{
+    if (!s1 || !s2 || !s1->string.vector.size || !s2->string.vector.size)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    const ZyanUSize len = s1->string.vector.size + s2->string.vector.size - 1;
+    if (capacity < len)
+    {
+        return ZYAN_STATUS_INSUFFICIENT_BUFFER_SIZE;
+    }
+
+    ZYAN_CHECK(ZyanStringInitCustomBuffer(destination, buffer, capacity));
+    ZYAN_ASSERT(destination->vector.capacity >= len);
+
+    ZYAN_MEMCPY(destination->vector.data, s1->string.vector.data, s1->string.vector.size - 1);
+    ZYAN_MEMCPY((char*)destination->vector.data + s1->string.vector.size - 1,
+        s2->string.vector.data, s2->string.vector.size - 1);
+    destination->vector.size = len;
+    ZYCORE_STRING_NULLTERMINATE(destination);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Views                                                                                          */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanStringViewInsideView(ZyanStringView* view, const ZyanStringView* source)
+{
+    if (!view || !source)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    view->string.vector.data = source->string.vector.data;
+    view->string.vector.size = source->string.vector.size;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringViewInsideViewEx(ZyanStringView* view, const ZyanStringView* source,
+    ZyanUSize index, ZyanUSize count)
+{
+    if (!view || !source)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    if (index + count >= source->string.vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    view->string.vector.data = (void*)((char*)source->string.vector.data + index);
+    view->string.vector.size = count;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringViewInsideBuffer(ZyanStringView* view, const char* string)
+{
+    if (!view || !string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    view->string.vector.data = (void*)string;
+    view->string.vector.size = ZYAN_STRLEN(string) + 1;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringViewInsideBufferEx(ZyanStringView* view, const char* buffer, ZyanUSize length)
+{
+    if (!view || !buffer || !length)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    view->string.vector.data = (void*)buffer;
+    view->string.vector.size = length + 1;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringViewGetSize(const ZyanStringView* view, ZyanUSize* size)
+{
+    if (!view || !size)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZYAN_ASSERT(view->string.vector.size >= 1);
+    *size = view->string.vector.size - 1;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZYCORE_EXPORT ZyanStatus ZyanStringViewGetData(const ZyanStringView* view, const char** buffer)
+{
+    if (!view || !buffer)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *buffer = view->string.vector.data;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Character access                                                                               */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanStringGetChar(const ZyanStringView* string, ZyanUSize index, char* value)
+{
+    if (!string || !value)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow direct access to the terminating '\0' character
+    if (index + 1 >= string->string.vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    const char* chr;
+    ZYAN_CHECK(ZyanVectorGetPointer(&string->string.vector, index, (const void**)&chr));
+    *value = *chr;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringGetCharMutable(ZyanString* string, ZyanUSize index, char** value)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow direct access to the terminating '\0' character
+    if (index + 1 >= string->vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    return ZyanVectorGetPointerMutable(&string->vector, index, (void**)value);
+}
+
+ZyanStatus ZyanStringSetChar(ZyanString* string, ZyanUSize index, char value)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow direct access to the terminating '\0' character
+    if (index + 1 >= string->vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    return ZyanVectorSet(&string->vector, index, (void*)&value);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Insertion                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanStringInsert(ZyanString* destination, ZyanUSize index, const ZyanStringView* source)
+{
+    if (!destination || !source || !source->string.vector.size)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    if (index == destination->vector.size)
+    {
+        return ZyanStringAppend(destination, source);
+    }
+
+    // Don't allow insertion after the terminating '\0' character
+    if (index >= destination->vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZYAN_CHECK(ZyanVectorInsertRange(&destination->vector, index, source->string.vector.data,
+        source->string.vector.size - 1));
+    ZYCORE_STRING_ASSERT_NULLTERMINATION(destination);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringInsertEx(ZyanString* destination, ZyanUSize destination_index,
+    const ZyanStringView* source, ZyanUSize source_index, ZyanUSize count)
+{
+    if (!destination || !source || !source->string.vector.size)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    if (destination_index == destination->vector.size)
+    {
+        return ZyanStringAppendEx(destination, source, source_index, count);
+    }
+
+    // Don't allow insertion after the terminating '\0' character
+    if (destination_index >= destination->vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    // Don't allow access to the terminating '\0' character
+    if (source_index + count >= source->string.vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZYAN_CHECK(ZyanVectorInsertRange(&destination->vector, destination_index,
+        (char*)source->string.vector.data + source_index, count));
+    ZYCORE_STRING_ASSERT_NULLTERMINATION(destination);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Appending                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanStringAppend(ZyanString* destination, const ZyanStringView* source)
+{
+    if (!destination || !source || !source->string.vector.size)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    const ZyanUSize len = destination->vector.size;
+    ZYAN_CHECK(ZyanVectorResize(&destination->vector, len + source->string.vector.size - 1));
+    ZYAN_MEMCPY((char*)destination->vector.data + len - 1, source->string.vector.data,
+        source->string.vector.size - 1);
+    ZYCORE_STRING_NULLTERMINATE(destination);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringAppendEx(ZyanString* destination, const ZyanStringView* source,
+    ZyanUSize source_index, ZyanUSize count)
+{
+    if (!destination || !source || !source->string.vector.size)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow access to the terminating '\0' character
+    if (source_index + count >= source->string.vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    const ZyanUSize len = destination->vector.size;
+    ZYAN_CHECK(ZyanVectorResize(&destination->vector, len + count));
+    ZYAN_MEMCPY((char*)destination->vector.data + len - 1,
+        (const char*)source->string.vector.data + source_index, count);
+    ZYCORE_STRING_NULLTERMINATE(destination);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Deletion                                                                                       */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanStringDelete(ZyanString* string, ZyanUSize index, ZyanUSize count)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow removal of the terminating '\0' character
+    if (index + count >= string->vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZYAN_CHECK(ZyanVectorDeleteRange(&string->vector, index, count));
+    ZYCORE_STRING_NULLTERMINATE(string);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringTruncate(ZyanString* string, ZyanUSize index)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow removal of the terminating '\0' character
+    if (index >= string->vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    ZYAN_CHECK(ZyanVectorDeleteRange(&string->vector, index, string->vector.size - index - 1));
+    ZYCORE_STRING_NULLTERMINATE(string);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringClear(ZyanString* string)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZYAN_CHECK(ZyanVectorClear(&string->vector));
+    // `ZyanVector` guarantees a minimum capacity of 1 element/character
+    ZYAN_ASSERT(string->vector.capacity >= 1);
+
+    *(char*)string->vector.data = '\0';
+    string->vector.size++;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Searching                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanStringLPos(const ZyanStringView* haystack, const ZyanStringView* needle,
+    ZyanISize* found_index)
+{
+    if (!haystack)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanStringLPosEx(haystack, needle, found_index, 0, haystack->string.vector.size - 1);
+}
+
+ZyanStatus ZyanStringLPosEx(const ZyanStringView* haystack, const ZyanStringView* needle,
+    ZyanISize* found_index, ZyanUSize index, ZyanUSize count)
+{
+    if (!haystack || !needle || !found_index)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow access to the terminating '\0' character
+    if (index + count >= haystack->string.vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    if ((haystack->string.vector.size == 1) || (needle->string.vector.size == 1) ||
+        (haystack->string.vector.size < needle->string.vector.size))
+    {
+        *found_index = -1;
+        return ZYAN_STATUS_FALSE;
+    }
+
+    const char* s = (const char*)haystack->string.vector.data + index;
+    const char* b = (const char*)needle->string.vector.data;
+    for (; s + 1 < (const char*)haystack->string.vector.data + haystack->string.vector.size; ++s)
+    {
+        if (*s != *b)
+        {
+            continue;
+        }
+        const char* a = s;
+        for (;;)
+        {
+            if ((ZyanUSize)(a - (const char*)haystack->string.vector.data) > index + count)
+            {
+                *found_index = -1;
+                return ZYAN_STATUS_FALSE;
+            }
+            if (*b == 0)
+            {
+                *found_index = (ZyanISize)(s - (const char*)haystack->string.vector.data);
+                return ZYAN_STATUS_TRUE;
+            }
+            if (*a++ != *b++)
+            {
+                break;
+            }
+        }
+        b = (char*)needle->string.vector.data;
+    }
+
+    *found_index = -1;
+    return ZYAN_STATUS_FALSE;
+}
+
+ZyanStatus ZyanStringLPosI(const ZyanStringView* haystack, const ZyanStringView* needle,
+    ZyanISize* found_index)
+{
+    if (!haystack)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanStringLPosIEx(haystack, needle, found_index, 0, haystack->string.vector.size - 1);
+}
+
+ZyanStatus ZyanStringLPosIEx(const ZyanStringView* haystack, const ZyanStringView* needle,
+    ZyanISize* found_index, ZyanUSize index, ZyanUSize count)
+{
+    // This solution assumes that characters are represented using ASCII representation, i.e.,
+    // codes for 'a', 'b', 'c', .. 'z' are 97, 98, 99, .. 122 respectively. And codes for 'A',
+    // 'B', 'C', .. 'Z' are 65, 66, .. 95 respectively.
+
+    if (!haystack || !needle || !found_index)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow access to the terminating '\0' character
+    if (index + count >= haystack->string.vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    if ((haystack->string.vector.size == 1) || (needle->string.vector.size == 1) ||
+        (haystack->string.vector.size < needle->string.vector.size))
+    {
+        *found_index = -1;
+        return ZYAN_STATUS_FALSE;
+    }
+
+    const char* s = (const char*)haystack->string.vector.data + index;
+    const char* b = (const char*)needle->string.vector.data;
+    for (; s + 1 < (const char*)haystack->string.vector.data + haystack->string.vector.size; ++s)
+    {
+        if ((*s != *b) && ((*s ^ 32) != *b))
+        {
+            continue;
+        }
+        const char* a = s;
+        for (;;)
+        {
+            if ((ZyanUSize)(a - (const char*)haystack->string.vector.data) > index + count)
+            {
+                *found_index = -1;
+                return ZYAN_STATUS_FALSE;
+            }
+            if (*b == 0)
+            {
+                *found_index = (ZyanISize)(s - (const char*)haystack->string.vector.data);
+                return ZYAN_STATUS_TRUE;
+            }
+            const char c1 = *a++;
+            const char c2 = *b++;
+            if ((c1 != c2) && ((c1 ^ 32) != c2))
+            {
+                break;
+            }
+        }
+        b = (char*)needle->string.vector.data;
+    }
+
+    *found_index = -1;
+    return ZYAN_STATUS_FALSE;
+}
+
+ZyanStatus ZyanStringRPos(const ZyanStringView* haystack, const ZyanStringView* needle,
+    ZyanISize* found_index)
+{
+    if (!haystack)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanStringRPosEx(haystack, needle, found_index, haystack->string.vector.size - 1,
+        haystack->string.vector.size - 1);
+}
+
+ZyanStatus ZyanStringRPosEx(const ZyanStringView* haystack, const ZyanStringView* needle,
+    ZyanISize* found_index, ZyanUSize index, ZyanUSize count)
+{
+    if (!haystack || !needle || !found_index)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow access to the terminating '\0' character
+    if ((index >= haystack->string.vector.size) || (count > index))
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    if (!index || !count ||
+        (haystack->string.vector.size == 1) || (needle->string.vector.size == 1) ||
+        (haystack->string.vector.size < needle->string.vector.size))
+    {
+        *found_index = -1;
+        return ZYAN_STATUS_FALSE;
+    }
+
+    const char* s = (const char*)haystack->string.vector.data + index - 1;
+    const char* b = (const char*)needle->string.vector.data + needle->string.vector.size - 2;
+    for (; s >= (const char*)haystack->string.vector.data; --s)
+    {
+        if (*s != *b)
+        {
+            continue;
+        }
+        const char* a = s;
+        for (;;)
+        {
+            if (b < (const char*)needle->string.vector.data)
+            {
+                *found_index = (ZyanISize)(a - (const char*)haystack->string.vector.data + 1);
+                return ZYAN_STATUS_TRUE;
+            }
+            if (a < (const char*)haystack->string.vector.data + index - count)
+            {
+                *found_index = -1;
+                return ZYAN_STATUS_FALSE;
+            }
+            if (*a-- != *b--)
+            {
+                break;
+            }
+        }
+        b = (char*)needle->string.vector.data + needle->string.vector.size - 2;
+    }
+
+    *found_index = -1;
+    return ZYAN_STATUS_FALSE;
+}
+
+ZyanStatus ZyanStringRPosI(const ZyanStringView* haystack, const ZyanStringView* needle,
+    ZyanISize* found_index)
+{
+    if (!haystack)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanStringRPosIEx(haystack, needle, found_index, haystack->string.vector.size - 1,
+        haystack->string.vector.size - 1);
+}
+
+ZyanStatus ZyanStringRPosIEx(const ZyanStringView* haystack, const ZyanStringView* needle,
+    ZyanISize* found_index, ZyanUSize index, ZyanUSize count)
+{
+    // This solution assumes that characters are represented using ASCII representation, i.e.,
+    // codes for 'a', 'b', 'c', .. 'z' are 97, 98, 99, .. 122 respectively. And codes for 'A',
+    // 'B', 'C', .. 'Z' are 65, 66, .. 95 respectively.
+
+    if (!haystack || !needle || !found_index)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow access to the terminating '\0' character
+    if ((index >= haystack->string.vector.size) || (count > index))
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    if (!index || !count ||
+        (haystack->string.vector.size == 1) || (needle->string.vector.size == 1) ||
+        (haystack->string.vector.size < needle->string.vector.size))
+    {
+        *found_index = -1;
+        return ZYAN_STATUS_FALSE;
+    }
+
+    const char* s = (const char*)haystack->string.vector.data + index - 1;
+    const char* b = (const char*)needle->string.vector.data + needle->string.vector.size - 2;
+    for (; s >= (const char*)haystack->string.vector.data; --s)
+    {
+        if ((*s != *b) && ((*s ^ 32) != *b))
+        {
+            continue;
+        }
+        const char* a = s;
+        for (;;)
+        {
+            if (b < (const char*)needle->string.vector.data)
+            {
+                *found_index = (ZyanISize)(a - (const char*)haystack->string.vector.data + 1);
+                return ZYAN_STATUS_TRUE;
+            }
+            if (a < (const char*)haystack->string.vector.data + index - count)
+            {
+                *found_index = -1;
+                return ZYAN_STATUS_FALSE;
+            }
+            const char c1 = *a--;
+            const char c2 = *b--;
+            if ((c1 != c2) && ((c1 ^ 32) != c2))
+            {
+                break;
+            }
+        }
+        b = (char*)needle->string.vector.data + needle->string.vector.size - 2;
+    }
+
+    *found_index = -1;
+    return ZYAN_STATUS_FALSE;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Comparing                                                                                      */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanStringCompare(const ZyanStringView* s1, const ZyanStringView* s2, ZyanI32* result)
+{
+    if (!s1 || !s2)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    if (s1->string.vector.size < s2->string.vector.size)
+    {
+        *result = -1;
+        return ZYAN_STATUS_FALSE;
+    }
+    if (s1->string.vector.size > s2->string.vector.size)
+    {
+        *result =  1;
+        return ZYAN_STATUS_FALSE;
+    }
+
+    const char* const a = (char*)s1->string.vector.data;
+    const char* const b = (char*)s2->string.vector.data;
+    ZyanUSize i;
+    for (i = 0; (i + 1 < s1->string.vector.size) && (i + 1 < s2->string.vector.size); ++i)
+    {
+        if (a[i] == b[i])
+        {
+            continue;
+        }
+        break;
+    }
+
+    if (a[i] == b[i])
+    {
+        *result = 0;
+        return ZYAN_STATUS_TRUE;
+    }
+
+    if ((a[i] | 32) < (b[i] | 32))
+    {
+        *result = -1;
+        return ZYAN_STATUS_FALSE;
+    }
+
+    *result = 1;
+    return ZYAN_STATUS_FALSE;
+}
+
+ZyanStatus ZyanStringCompareI(const ZyanStringView* s1, const ZyanStringView* s2, ZyanI32* result)
+{
+    // This solution assumes that characters are represented using ASCII representation, i.e.,
+    // codes for 'a', 'b', 'c', .. 'z' are 97, 98, 99, .. 122 respectively. And codes for 'A',
+    // 'B', 'C', .. 'Z' are 65, 66, .. 95 respectively.
+
+    if (!s1 || !s2)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    if (s1->string.vector.size < s2->string.vector.size)
+    {
+        *result = -1;
+        return ZYAN_STATUS_FALSE;
+    }
+    if (s1->string.vector.size > s2->string.vector.size)
+    {
+        *result =  1;
+        return ZYAN_STATUS_FALSE;
+    }
+
+    const char* const a = (char*)s1->string.vector.data;
+    const char* const b = (char*)s2->string.vector.data;
+    ZyanUSize i;
+    for (i = 0; (i + 1 < s1->string.vector.size) && (i + 1 < s2->string.vector.size); ++i)
+    {
+        if ((a[i] == b[i]) || ((a[i] ^ 32) == b[i]))
+        {
+            continue;
+        }
+        break;
+    }
+
+    if (a[i] == b[i])
+    {
+        *result = 0;
+        return ZYAN_STATUS_TRUE;
+    }
+
+    if ((a[i] | 32) < (b[i] | 32))
+    {
+        *result = -1;
+        return ZYAN_STATUS_FALSE;
+    }
+
+    *result = 1;
+    return ZYAN_STATUS_FALSE;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Case conversion                                                                                */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanStringToLowerCase(ZyanString* string)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanStringToLowerCaseEx(string, 0, string->vector.size - 1);
+}
+
+ZyanStatus ZyanStringToLowerCaseEx(ZyanString* string, ZyanUSize index, ZyanUSize count)
+{
+    // This solution assumes that characters are represented using ASCII representation, i.e.,
+    // codes for 'a', 'b', 'c', .. 'z' are 97, 98, 99, .. 122 respectively. And codes for 'A',
+    // 'B', 'C', .. 'Z' are 65, 66, .. 95 respectively.
+
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow access to the terminating '\0' character
+    if (index + count >= string->vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    char* s = (char*)string->vector.data + index;
+    for (ZyanUSize i = index; i < index + count; ++i)
+    {
+        const char c = *s;
+        if ((c >= 'A') && (c <= 'Z'))
+        {
+            *s = c | 32;
+        }
+        ++s;
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringToUpperCase(ZyanString* string)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanStringToUpperCaseEx(string, 0, string->vector.size - 1);
+}
+
+ZyanStatus ZyanStringToUpperCaseEx(ZyanString* string, ZyanUSize index, ZyanUSize count)
+{
+    // This solution assumes that characters are represented using ASCII representation, i.e.,
+    // codes for 'a', 'b', 'c', .. 'z' are 97, 98, 99, .. 122 respectively. And codes for 'A',
+    // 'B', 'C', .. 'Z' are 65, 66, .. 95 respectively.
+
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    // Don't allow access to the terminating '\0' character
+    if (index + count >= string->vector.size)
+    {
+        return ZYAN_STATUS_OUT_OF_RANGE;
+    }
+
+    char* s = (char*)string->vector.data + index;
+    for (ZyanUSize i = index; i < index + count; ++i)
+    {
+        const char c = *s;
+        if ((c >= 'a') && (c <= 'z'))
+        {
+            *s = c & ~32;
+        }
+        ++s;
+    }
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Memory management                                                                              */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanStringResize(ZyanString* string, ZyanUSize size)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZYAN_CHECK(ZyanVectorResize(&string->vector, size + 1));
+    ZYCORE_STRING_NULLTERMINATE(string);
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringReserve(ZyanString* string, ZyanUSize capacity)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanVectorReserve(&string->vector, capacity);
+}
+
+ZyanStatus ZyanStringShrinkToFit(ZyanString* string)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    return ZyanVectorShrinkToFit(&string->vector);
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+/* Information                                                                                    */
+/* ---------------------------------------------------------------------------------------------- */
+
+ZyanStatus ZyanStringGetCapacity(const ZyanString* string, ZyanUSize* capacity)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZYAN_ASSERT(string->vector.capacity >= 1);
+    *capacity = string->vector.capacity - 1;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringGetSize(const ZyanString* string, ZyanUSize* size)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    ZYAN_ASSERT(string->vector.size >= 1);
+    *size = string->vector.size - 1;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+ZyanStatus ZyanStringGetData(const ZyanString* string, const char** value)
+{
+    if (!string)
+    {
+        return ZYAN_STATUS_INVALID_ARGUMENT;
+    }
+
+    *value = string->vector.data;
+
+    return ZYAN_STATUS_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------------------------- */
+
+/* ============================================================================================== */
diff --git a/js/src/zydis/Zycore/moz.yaml b/js/src/zydis/Zycore/moz.yaml
new file mode 100644
index 0000000000..57fbaf5621
--- /dev/null
+++ b/js/src/zydis/Zycore/moz.yaml
@@ -0,0 +1,52 @@
+schema: 1
+
+bugzilla:
+  product: Core
+  component: "JavaScript Engine"
+
+origin:
+  name: zycore-c
+  description: library providing platform independent types, macros and a fallback for environments without LibC
+
+  url: https://github.com/zyantific/zycore-c
+
+  release: 74620eefd233bec20daeb66e78e744ff06e273b7 (2024-02-04T21:04:02Z).
+  revision: 74620eefd233bec20daeb66e78e744ff06e273b7
+
+  license: MIT
+
+vendoring:
+  url: https://github.com/zyantific/zycore-c
+  source-hosting: github
+  tracking: commit
+
+  exclude:
+    - "*"
+    - src/API/Synchronization.c
+    - src/API/Terminal.c
+    - src/API/Thread.c
+    - include/Zycore/API/Synchronization.h
+    - include/Zycore/API/Terminal.h
+    - include/Zycore/API/Thread.h
+    - tests
+    - cmake
+    - examples
+    - Internal
+    - resources
+
+  keep:
+    - LICENSE
+
+  update-actions:
+    - action: move-dir
+      from: '{vendor_dir}/src'
+      to: '{vendor_dir}'
+    - action: move-dir
+      from: '{vendor_dir}/include/Zycore'
+      to: '{vendor_dir}'
+    - action: move-file
+      from: '{vendor_dir}/String.c'
+      to: '{vendor_dir}/ZycoreString.c'
+    - action: run-script
+      script: "{vendor_dir}/../patch-include-headers.sh"
+      cwd: "{vendor_dir}"