;------------------------------------------------------------------------------

;

; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>

; 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 contain the same copy of this file:

;

; BaseMemoryLibRepStr

; BaseMemoryLibMmx

; BaseMemoryLibSse2

; BaseMemoryLibOptDxe

; BaseMemoryLibOptPei

;

;------------------------------------------------------------------------------

.code

;------------------------------------------------------------------------------

; INTN

; EFIAPI

; InternalMemCompareMem (

; IN CONST VOID *DestinationBuffer,

; IN CONST VOID *SourceBuffer,

; IN UINTN Length

; );

;------------------------------------------------------------------------------

InternalMemCompareMem PROC USES rsi rdi

mov rsi, rcx

mov rdi, rdx

mov rcx, r8

repe cmpsb

movzx rax, byte ptr [rsi - 1]

movzx rdx, byte ptr [rdi - 1]

sub rax, rdx

ret

InternalMemCompareMem ENDP

END