1;------------------------------------------------------------------------------ 2; 3; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> 4; This program and the accompanying materials 5; are licensed and made available under the terms and conditions of the BSD License 6; which accompanies this distribution. The full text of the license may be found at 7; http://opensource.org/licenses/bsd-license.php. 8; 9; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11; 12; Module Name: 13; 14; CompareMem.Asm 15; 16; Abstract: 17; 18; CompareMem function 19; 20; Notes: 21; 22; The following BaseMemoryLib instances contain the same copy of this file: 23; 24; BaseMemoryLibRepStr 25; BaseMemoryLibMmx 26; BaseMemoryLibSse2 27; BaseMemoryLibOptDxe 28; BaseMemoryLibOptPei 29; 30;------------------------------------------------------------------------------ 31 32 .686 33 .model flat,C 34 .code 35 36;------------------------------------------------------------------------------ 37; INTN 38; EFIAPI 39; InternalMemCompareMem ( 40; IN CONST VOID *DestinationBuffer, 41; IN CONST VOID *SourceBuffer, 42; IN UINTN Length 43; ); 44;------------------------------------------------------------------------------ 45InternalMemCompareMem PROC USES esi edi 46 mov esi, [esp + 12] 47 mov edi, [esp + 16] 48 mov ecx, [esp + 20] 49 repe cmpsb 50 movzx eax, byte ptr [esi - 1] 51 movzx edx, byte ptr [edi - 1] 52 sub eax, edx 53 ret 54InternalMemCompareMem ENDP 55 56 END 57