1;------------------------------------------------------------------------------
2;
3; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
4; 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;
22;   The following BaseMemoryLib instances contain the same copy of this file:
23;
24;       BaseMemoryLibRepStr
25;       BaseMemoryLibMmx
26;       BaseMemoryLibSse2
27;       BaseMemoryLibOptDxe
28;       BaseMemoryLibOptPei
29;
30;------------------------------------------------------------------------------
31
32    .code
33
34;------------------------------------------------------------------------------
35; CONST VOID *
36; EFIAPI
37; InternalMemScanMem8 (
38;   IN      CONST VOID                *Buffer,
39;   IN      UINTN                     Length,
40;   IN      UINT8                     Value
41;   );
42;------------------------------------------------------------------------------
43InternalMemScanMem8 PROC    USES    rdi
44    mov     rdi, rcx
45    mov     rcx, rdx
46    mov     rax, r8
47    repne   scasb
48    lea     rax, [rdi - 1]
49    cmovnz  rax, rcx                    ; set rax to 0 if not found
50    ret
51InternalMemScanMem8 ENDP
52
53    END
54