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e1f414b6 | 1 | //\r |
2 | // Include common header file for this module.\r | |
3 | //\r | |
4 | #include "CommonHeader.h"\r | |
5 | \r | |
6 | ;------------------------------------------------------------------------------\r | |
7 | ;\r | |
8 | ; Copyright (c) 2006, Intel Corporation\r | |
9 | ; All rights reserved. This program and the accompanying materials\r | |
10 | ; are licensed and made available under the terms and conditions of the BSD License\r | |
11 | ; which accompanies this distribution. The full text of the license may be found at\r | |
12 | ; http://opensource.org/licenses/bsd-license.php\r | |
13 | ;\r | |
14 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
15 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
16 | ;\r | |
17 | ; Module Name:\r | |
18 | ;\r | |
19 | ; SetMem32.asm\r | |
20 | ;\r | |
21 | ; Abstract:\r | |
22 | ;\r | |
23 | ; SetMem32 function\r | |
24 | ;\r | |
25 | ; Notes:\r | |
26 | ;\r | |
27 | ;------------------------------------------------------------------------------\r | |
28 | \r | |
29 | .686\r | |
30 | .model flat,C\r | |
31 | .xmm\r | |
32 | .code\r | |
33 | \r | |
34 | ;------------------------------------------------------------------------------\r | |
35 | ; VOID *\r | |
36 | ; EFIAPI\r | |
37 | ; InternalMemSetMem32 (\r | |
38 | ; IN VOID *Buffer,\r | |
39 | ; IN UINTN Count,\r | |
40 | ; IN UINT32 Value\r | |
41 | ; );\r | |
42 | ;------------------------------------------------------------------------------\r | |
43 | InternalMemSetMem32 PROC USES edi\r | |
44 | mov edx, [esp + 12]\r | |
45 | mov edi, [esp + 8]\r | |
46 | xor ecx, ecx\r | |
47 | sub ecx, edi\r | |
48 | and ecx, 15 ; ecx + edi aligns on 16-byte boundary\r | |
49 | mov eax, [esp + 16]\r | |
50 | jz @F\r | |
51 | shr ecx, 2\r | |
52 | cmp ecx, edx\r | |
53 | cmova ecx, edx\r | |
54 | sub edx, ecx\r | |
55 | rep stosd\r | |
56 | @@:\r | |
57 | mov ecx, edx\r | |
58 | and edx, 3\r | |
59 | shr ecx, 2\r | |
60 | jz @SetDwords\r | |
61 | movd xmm0, eax\r | |
62 | pshufd xmm0, xmm0, 0\r | |
63 | @@:\r | |
64 | movntdq [edi], xmm0\r | |
65 | add edi, 16\r | |
66 | loop @B\r | |
67 | mfence\r | |
68 | @SetDwords:\r | |
69 | mov ecx, edx\r | |
70 | rep stosd\r | |
71 | mov eax, [esp + 8]\r | |
72 | ret\r | |
73 | InternalMemSetMem32 ENDP\r | |
74 | \r | |
75 | END\r |