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6e3b8c47 1;------------------------------------------------------------------------------\r
2;\r
3; Copyright (c) 2006, Intel Corporation\r
4; All rights reserved. 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; ZeroMem.asm\r
15;\r
16; Abstract:\r
17;\r
18; ZeroMem function\r
19;\r
20; Notes:\r
21;\r
22;------------------------------------------------------------------------------\r
23\r
24 .686\r
25 .model flat,C\r
eb227e96 26 .mmx\r
6e3b8c47 27 .code\r
28\r
29;------------------------------------------------------------------------------\r
30; VOID *\r
eb227e96 31; InternalMemZeroMem (\r
6e3b8c47 32; IN VOID *Buffer,\r
33; IN UINTN Count\r
eb227e96 34; );\r
6e3b8c47 35;------------------------------------------------------------------------------\r
36InternalMemZeroMem PROC USES edi\r
37 mov edi, [esp + 8]\r
38 mov ecx, [esp + 12]\r
39 mov edx, ecx\r
40 shr ecx, 3\r
41 jz @ZeroBytes\r
42 pxor mm0, mm0\r
43@@:\r
eb227e96 44 movq [edi], mm0\r
6e3b8c47 45 add edi, 8\r
46 loop @B\r
6e3b8c47 47@ZeroBytes:\r
48 and edx, 7\r
49 xor eax, eax\r
50 mov ecx, edx\r
51 rep stosb\r
52 mov eax, [esp + 8]\r
53 ret\r
54InternalMemZeroMem ENDP\r
55\r
56 END\r