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6b6b3424 JJ |
1 | ;------------------------------------------------------------------------------\r |
2 | ;\r | |
3 | ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r | |
9344f092 | 4 | ; SPDX-License-Identifier: BSD-2-Clause-Patent\r |
6b6b3424 JJ |
5 | ;\r |
6 | ; Module Name:\r | |
7 | ;\r | |
8 | ; ZeroMem.Asm\r | |
9 | ;\r | |
10 | ; Abstract:\r | |
11 | ;\r | |
12 | ; ZeroMem function\r | |
13 | ;\r | |
14 | ; Notes:\r | |
15 | ;\r | |
16 | ;------------------------------------------------------------------------------\r | |
17 | \r | |
18 | SECTION .text\r | |
19 | \r | |
20 | ;------------------------------------------------------------------------------\r | |
21 | ; VOID *\r | |
22 | ; InternalMemZeroMem (\r | |
23 | ; IN VOID *Buffer,\r | |
24 | ; IN UINTN Count\r | |
25 | ; );\r | |
26 | ;------------------------------------------------------------------------------\r | |
27 | global ASM_PFX(InternalMemZeroMem)\r | |
28 | ASM_PFX(InternalMemZeroMem):\r | |
29 | push edi\r | |
30 | xor eax, eax\r | |
31 | mov edi, [esp + 8]\r | |
32 | mov ecx, [esp + 12]\r | |
33 | mov edx, ecx\r | |
34 | shr ecx, 2\r | |
35 | and edx, 3\r | |
36 | push edi\r | |
37 | rep stosd\r | |
38 | mov ecx, edx\r | |
39 | rep stosb\r | |
40 | pop eax\r | |
41 | pop edi\r | |
42 | ret\r | |
43 | \r |