1 files changed, 116 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/asm/ASMCpuId_Idx_ECX.asm b/src/VBox/Runtime/common/asm/ASMCpuId_Idx_ECX.asm
new file mode 100644
index 00000000..ef6dd8c2
--- /dev/null
+++ b/src/VBox/Runtime/common/asm/ASMCpuId_Idx_ECX.asm
@@ -0,0 +1,116 @@
+; $Id: ASMCpuId_Idx_ECX.asm $
+;; @file
+; IPRT - ASMCpuId_Idx_ECX().
+;
+
+;
+; Copyright (C) 2012-2019 Oracle Corporation
+;
+; This file is part of VirtualBox Open Source Edition (OSE), as
+; available from http://www.virtualbox.org. This file is free software;
+; you can redistribute it and/or modify it under the terms of the GNU
+; General Public License (GPL) as published by the Free Software
+; Foundation, in version 2 as it comes in the "COPYING" file of the
+; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+;
+; The contents of this file may alternatively be used under the terms
+; of the Common Development and Distribution License Version 1.0
+; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+; VirtualBox OSE distribution, in which case the provisions of the
+; CDDL are applicable instead of those of the GPL.
+;
+; You may elect to license modified versions of this file under the
+; terms and conditions of either the GPL or the CDDL or both.
+;
+
+;*******************************************************************************
+;* Header Files                                                                *
+;*******************************************************************************
+%include "iprt/asmdefs.mac"
+
+BEGINCODE
+
+;;
+; CPUID with EAX and ECX inputs, returning ALL output registers.
+;
+; @param    uOperator   x86:ebp+8   gcc:rdi  msc:rcx
+; @param    uIdxECX     x86:ebp+c   gcc:rsi  msc:rdx
+; @param    pvEAX       x86:ebp+10  gcc:rdx  msc:r8
+; @param    pvEBX       x86:ebp+14  gcc:rcx  msc:r9
+; @param    pvECX       x86:ebp+18  gcc:r8   msc:rsp+28h
+; @param    pvEDX       x86:ebp+1c  gcc:r9   msc:rsp+30h
+;
+; @returns  void
+;
+BEGINPROC_EXPORTED ASMCpuId_Idx_ECX
+%ifdef RT_ARCH_AMD64
+        mov     r10, rbx
+
+ %ifdef ASM_CALL64_MSC
+
+        mov     eax, ecx
+        mov     ecx, edx
+        xor     ebx, ebx
+        xor     edx, edx
+
+        cpuid
+
+        mov     [r8], eax
+        mov     [r9], ebx
+        mov     rax, [rsp + 28h]
+        mov     rbx, [rsp + 30h]
+        mov     [rax], ecx
+        mov     [rbx], edx
+
+ %else
+        mov     rsi, rdx
+        mov     r11, rcx
+        mov     eax, edi
+        mov     ecx, esi
+        xor     ebx, ebx
+        xor     edx, edx
+
+        cpuid
+
+        mov     [rsi], eax
+        mov     [r11], ebx
+        mov     [r8], ecx
+        mov     [r9], edx
+
+ %endif
+
+        mov     rbx, r10
+        ret
+
+%elifdef RT_ARCH_X86
+        push    ebp
+        mov     ebp, esp
+        push    ebx
+        push    edi
+
+        xor     edx, edx
+        xor     ebx, ebx
+        mov     eax, [ebp + 08h]
+        mov     ecx, [ebp + 0ch]
+
+        cpuid
+
+        mov     edi, [ebp + 10h]
+        mov     [edi], eax
+        mov     edi, [ebp + 14h]
+        mov     [edi], ebx
+        mov     edi, [ebp + 18h]
+        mov     [edi], ecx
+        mov     edi, [ebp + 1ch]
+        mov     [edi], edx
+
+        pop     edi
+        pop     ebx
+        leave
+        ret
+%else
+ %error unsupported arch
+%endif
+ENDPROC ASMCpuId_Idx_ECX
+