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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 | ; SetMem32.asm\r | |
15 | ;\r | |
16 | ; Abstract:\r | |
17 | ;\r | |
18 | ; SetMem32 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 | ; EFIAPI\r |
32 | ; InternalMemSetMem32 (\r | |
6e3b8c47 | 33 | ; IN VOID *Buffer,\r |
34 | ; IN UINTN Count,\r | |
35 | ; IN UINT32 Value\r | |
eb227e96 | 36 | ; );\r |
6e3b8c47 | 37 | ;------------------------------------------------------------------------------\r |
eb227e96 | 38 | InternalMemSetMem32 PROC\r |
39 | mov eax, [esp + 4] ; eax <- Buffer as return value\r | |
40 | mov ecx, [esp + 8] ; ecx <- Count\r | |
41 | movd mm0, [esp + 12] ; mm0 <- Value\r | |
42 | shr ecx, 1 ; ecx <- number of qwords to set\r | |
43 | mov edx, eax ; edx <- Buffer\r | |
6e3b8c47 | 44 | jz @SetDwords\r |
eb227e96 | 45 | movq mm1, mm0\r |
46 | psllq mm1, 32\r | |
47 | por mm0, mm1\r | |
6e3b8c47 | 48 | @@:\r |
eb227e96 | 49 | movq [edx], mm0\r |
50 | lea edx, [edx + 8] ; use "lea" to avoid change in flags\r | |
6e3b8c47 | 51 | loop @B\r |
6e3b8c47 | 52 | @SetDwords:\r |
eb227e96 | 53 | jnc @F\r |
54 | movd [edx], mm0\r | |
6e3b8c47 | 55 | @@:\r |
56 | ret\r | |
57 | InternalMemSetMem32 ENDP\r | |
58 | \r | |
59 | END\r |