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
43
44
45
46
47
48
49
| ;------------------------------------------------------------------------------
| ;
| ; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
| ; SPDX-License-Identifier: BSD-2-Clause-Patent
| ;
| ; Module Name:
| ;
| ; ScanMem32.Asm
| ;
| ; Abstract:
| ;
| ; ScanMem32 function
| ;
| ; Notes:
| ;
| ; The following BaseMemoryLib instances contain the same copy of this file:
| ;
| ; BaseMemoryLibRepStr
| ; BaseMemoryLibMmx
| ; BaseMemoryLibSse2
| ; BaseMemoryLibOptDxe
| ; BaseMemoryLibOptPei
| ;
| ;------------------------------------------------------------------------------
|
| DEFAULT REL
| SECTION .text
|
| ;------------------------------------------------------------------------------
| ; CONST VOID *
| ; EFIAPI
| ; InternalMemScanMem32 (
| ; IN CONST VOID *Buffer,
| ; IN UINTN Length,
| ; IN UINT32 Value
| ; );
| ;------------------------------------------------------------------------------
| global ASM_PFX(InternalMemScanMem32)
| ASM_PFX(InternalMemScanMem32):
| push rdi
| mov rdi, rcx
| mov rax, r8
| mov rcx, rdx
| repne scasd
| lea rax, [rdi - 4]
| cmovnz rax, rcx
| pop rdi
| ret
|
|
|
