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b6bd81d4 | 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 | # CompareMem.Asm | |
15 | # | |
16 | # Abstract: | |
17 | # | |
18 | # CompareMem 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 | ||
37867477 | 33 | .global _InternalMemCompareMem |
34 | _InternalMemCompareMem: | |
b6bd81d4 | 35 | push %esi |
36 | push %edi | |
37 | movl 12(%esp),%esi | |
38 | movl 16(%esp),%edi | |
39 | movl 20(%esp),%ecx | |
40 | repe cmpsb | |
41 | movzbl -1(%esi), %eax | |
42 | movzbl -1(%edi), %edx | |
43 | subl %edx,%eax | |
44 | pop %edi | |
45 | pop %esi | |
46 | ret |