1#
2# ConvertAsm.py: Automatically generated from CompareMem.asm
3#
4#------------------------------------------------------------------------------
5#
6# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
7# This program and the accompanying materials
8# are licensed and made available under the terms and conditions of the BSD License
9# which accompanies this distribution.  The full text of the license may be found at
10# http://opensource.org/licenses/bsd-license.php.
11#
12# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
14#
15# Module Name:
16#
17#   CompareMem.S
18#
19# Abstract:
20#
21#   CompareMem function
22#
23# Notes:
24#
25#   The following BaseMemoryLib instances contain the same copy of this file:
26#
27#       BaseMemoryLibRepStr
28#       BaseMemoryLibMmx
29#       BaseMemoryLibSse2
30#       BaseMemoryLibOptDxe
31#       BaseMemoryLibOptPei
32#
33#------------------------------------------------------------------------------
34
35
36#------------------------------------------------------------------------------
37# INTN
38# EFIAPI
39# InternalMemCompareMem (
40#   IN      CONST VOID                *DestinationBuffer,
41#   IN      CONST VOID                *SourceBuffer,
42#   IN      UINTN                     Length
43#   );
44#------------------------------------------------------------------------------
45ASM_GLOBAL ASM_PFX(InternalMemCompareMem)
46ASM_PFX(InternalMemCompareMem):
47    pushq   %rsi
48    pushq   %rdi
49    movq    %rcx, %rsi
50    movq    %rdx, %rdi
51    movq    %r8, %rcx
52    repe    cmpsb
53    movzbq  -1(%rsi) , %rax
54    movzbq  -1(%rdi) , %rdx
55    sub     %dl, %al
56    popq    %rdi
57    popq    %rsi
58    ret
59
60