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f1baef62 | 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 | # ScanMem8.Asm | |
15 | # | |
16 | # Abstract: | |
17 | # | |
18 | # ScanMem8 function | |
19 | # | |
20 | # Notes: | |
21 | # | |
2bfb6009 | 22 | # The following BaseMemoryLib instances contain the same copy of this file: |
f1baef62 | 23 | # |
24 | # BaseMemoryLibRepStr | |
25 | # BaseMemoryLibMmx | |
26 | # BaseMemoryLibSse2 | |
2bfb6009 LG |
27 | # BaseMemoryLibOptDxe |
28 | # BaseMemoryLibOptPei | |
f1baef62 | 29 | # |
30 | #------------------------------------------------------------------------------ | |
31 | ||
32 | .globl _InternalMemScanMem8 | |
33 | ||
34 | #------------------------------------------------------------------------------ | |
35 | # CONST VOID * | |
36 | # EFIAPI | |
37 | # InternalMemScanMem8 ( | |
38 | # IN CONST VOID *Buffer, | |
39 | # IN UINTN Length, | |
40 | # IN UINT8 Value | |
41 | # ); | |
42 | #------------------------------------------------------------------------------ | |
43 | _InternalMemScanMem8: | |
44 | push %edi | |
45 | movl 12(%esp), %ecx | |
46 | movl 8(%esp), %edi | |
47 | movb 16(%esp), %al | |
48 | repne scasb | |
49 | leal -1(%edi), %eax | |
50 | cmovnz %ecx, %eax | |
51 | pop %edi | |
52 | ret |