diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseMemoryLibRepStr/Ia32/ScanMem8.nasm')
-rw-r--r-- | src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseMemoryLibRepStr/Ia32/ScanMem8.nasm | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseMemoryLibRepStr/Ia32/ScanMem8.nasm b/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseMemoryLibRepStr/Ia32/ScanMem8.nasm new file mode 100644 index 00000000..b8e848d0 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseMemoryLibRepStr/Ia32/ScanMem8.nasm @@ -0,0 +1,50 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR> +; SPDX-License-Identifier: BSD-2-Clause-Patent +; +; Module Name: +; +; ScanMem8.Asm +; +; Abstract: +; +; ScanMem8 function +; +; Notes: +; +; The following BaseMemoryLib instances contain the same copy of this file: +; +; BaseMemoryLibRepStr +; BaseMemoryLibMmx +; BaseMemoryLibSse2 +; BaseMemoryLibOptDxe +; BaseMemoryLibOptPei +; +;------------------------------------------------------------------------------ + + SECTION .text + +;------------------------------------------------------------------------------ +; CONST VOID * +; EFIAPI +; InternalMemScanMem8 ( +; IN CONST VOID *Buffer, +; IN UINTN Length, +; IN UINT8 Value +; ); +;------------------------------------------------------------------------------ +global ASM_PFX(InternalMemScanMem8) +ASM_PFX(InternalMemScanMem8): + push edi + mov ecx, [esp + 12] + mov edi, [esp + 8] + mov al, [esp + 16] + repne scasb + lea eax, [edi - 1] + jz .0 + mov eax, ecx +.0: + pop edi + ret + |