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1 | ;------------------------------------------------------------------------------\r |
2 | ;\r | |
3 | ; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r | |
4 | ; This program and the accompanying materials\r | |
5 | ; are licensed and made available under the terms and conditions of the BSD License\r | |
6 | ; which accompanies this distribution. The full text of the license may be found at\r | |
7 | ; http://opensource.org/licenses/bsd-license.php.\r | |
8 | ;\r | |
9 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | ;\r | |
12 | ; Module Name:\r | |
13 | ;\r | |
14 | ; ScanMem16.Asm\r | |
15 | ;\r | |
16 | ; Abstract:\r | |
17 | ;\r | |
18 | ; ScanMem16 function\r | |
19 | ;\r | |
20 | ; Notes:\r | |
21 | ;\r | |
22 | ; The following BaseMemoryLib instances contain the same copy of this file:\r | |
23 | ;\r | |
24 | ; BaseMemoryLibRepStr\r | |
25 | ; BaseMemoryLibMmx\r | |
26 | ; BaseMemoryLibSse2\r | |
27 | ; BaseMemoryLibOptDxe\r | |
28 | ; BaseMemoryLibOptPei\r | |
29 | ;\r | |
30 | ;------------------------------------------------------------------------------\r | |
31 | \r | |
32 | DEFAULT REL\r | |
33 | SECTION .text\r | |
34 | \r | |
35 | ;------------------------------------------------------------------------------\r | |
36 | ; CONST VOID *\r | |
37 | ; EFIAPI\r | |
38 | ; InternalMemScanMem16 (\r | |
39 | ; IN CONST VOID *Buffer,\r | |
40 | ; IN UINTN Length,\r | |
41 | ; IN UINT16 Value\r | |
42 | ; );\r | |
43 | ;------------------------------------------------------------------------------\r | |
44 | global ASM_PFX(InternalMemScanMem16)\r | |
45 | ASM_PFX(InternalMemScanMem16):\r | |
46 | push rdi\r | |
47 | mov rdi, rcx\r | |
48 | mov rax, r8\r | |
49 | mov rcx, rdx\r | |
50 | repne scasw\r | |
51 | lea rax, [rdi - 2]\r | |
52 | cmovnz rax, rcx\r | |
53 | pop rdi\r | |
54 | ret\r | |
55 | \r |