From 878ddf1fc3540a715f63594ed22b6929e881afb4 Mon Sep 17 00:00:00 2001 From: bbahnsen Date: Fri, 21 Apr 2006 22:54:32 +0000 Subject: Initial import. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524 --- .../BaseMemoryLibRepStr/Ia32/CompareMem.asm | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 MdePkg/Library/BaseMemoryLibRepStr/Ia32/CompareMem.asm (limited to 'MdePkg/Library/BaseMemoryLibRepStr/Ia32/CompareMem.asm') diff --git a/MdePkg/Library/BaseMemoryLibRepStr/Ia32/CompareMem.asm b/MdePkg/Library/BaseMemoryLibRepStr/Ia32/CompareMem.asm new file mode 100644 index 0000000000..3cf6fe7f73 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibRepStr/Ia32/CompareMem.asm @@ -0,0 +1,45 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, Intel Corporation +; All rights reserved. This program and the accompanying materials +; are licensed and made available under the terms and conditions of the BSD License +; which accompanies this distribution. The full text of the license may be found at +; http://opensource.org/licenses/bsd-license.php +; +; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +; +; Module Name: +; +; CompareMem.Asm +; +; Abstract: +; +; CompareMem function +; +; Notes: +; +; The following BaseMemoryLib instances share the same version of this file: +; +; BaseMemoryLibRepStr +; BaseMemoryLibMmx +; BaseMemoryLibSse2 +; +;------------------------------------------------------------------------------ + + .686 + .model flat,C + .code + +InternalMemCompareMem PROC USES esi edi + mov esi, [esp + 12] + mov edi, [esp + 16] + mov ecx, [esp + 20] + repe cmpsb + movzx eax, byte ptr [esi - 1] + movzx edx, byte ptr [edi - 1] + sub eax, edx + ret +InternalMemCompareMem ENDP + + END -- cgit v1.2.3