summaryrefslogtreecommitdiff
path: root/MdePkg/Library/BaseMemoryLibRepStr/Ia32/ScanMem8.s
blob: f4e3e282a265bf42365eb33ff95ec75b4ebf6003 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
#------------------------------------------------------------------------------
#
# 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:
#
#   ScanMem8.Asm
#
# Abstract:
#
#   ScanMem8 function
#
# Notes:
#
#   The following BaseMemoryLib instances share the same version of this file:
#
#       BaseMemoryLibRepStr
#       BaseMemoryLibMmx
#       BaseMemoryLibSse2
#
#------------------------------------------------------------------------------

    .686: 
    .code: 

.global _InternalMemScanMem8
_InternalMemScanMem8:
    push    %edi
    movl    12(%esp),%ecx
    movl    8(%esp),%edi
    movb    16(%esp),%al
    repne   scasb
    leal    -1(%edi),%eax
    cmovnz  %ecx, %eax
    ret