Ported to GNU assembly.
[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibRepStr / Ia32 / ScanMem64.s
1 #------------------------------------------------------------------------------
2 #
3 # Copyright (c) 2006, Intel Corporation
4 # All rights reserved. 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 # ScanMem64.Asm
15 #
16 # Abstract:
17 #
18 # ScanMem64 function
19 #
20 # Notes:
21 #
22 # The following BaseMemoryLib instances share the same version of this file:
23 #
24 # BaseMemoryLibRepStr
25 # BaseMemoryLibMmx
26 # BaseMemoryLibSse2
27 #
28 #------------------------------------------------------------------------------
29
30 .686:
31 .code:
32
33 InternalMemScanMem64:
34 push %edi
35 movl 12(%esp),%ecx
36 movl 16(%esp),%eax
37 movl 20(%esp),%edx
38 movl 8(%esp),%edi
39 L0:
40 cmpl (%edi),%eax
41 leal 8(%edi),%edi
42 loopne L0
43 jne L1
44 cmpl -4(%edi),%edx
45 jecxz L1
46 jne L0
47 L1:
48 leal -8(%edi),%eax
49 cmovne %ecx, %eax
50 pop %edi
51 ret
52