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ab1096fd | 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 | ; SetMem64.asm\r | |
15 | ;\r | |
16 | ; Abstract:\r | |
17 | ;\r | |
18 | ; SetMem64 function\r | |
19 | ;\r | |
20 | ; Notes:\r | |
21 | ;\r | |
22 | ;------------------------------------------------------------------------------\r | |
23 | \r | |
24 | .code\r | |
25 | \r | |
eb227e96 | 26 | ;------------------------------------------------------------------------------\r |
27 | ; VOID *\r | |
28 | ; InternalMemSetMem64 (\r | |
29 | ; IN VOID *Buffer,\r | |
30 | ; IN UINTN Count,\r | |
31 | ; IN UINT64 Value\r | |
32 | ; )\r | |
33 | ;------------------------------------------------------------------------------\r | |
34 | InternalMemSetMem64 PROC\r | |
35 | DB 49h, 0fh, 6eh, 0c0h ; movd mm0, r8 (Value)\r | |
36 | mov rax, rcx ; rax <- Buffer\r | |
37 | xchg rcx, rdx ; rcx <- Count\r | |
ab1096fd | 38 | @@:\r |
eb227e96 | 39 | DB 0fh, 0e7h, 02h ; movntq [rdx], mm0\r |
40 | add rdx, 8\r | |
ab1096fd | 41 | loop @B\r |
42 | mfence\r | |
43 | ret\r | |
44 | InternalMemSetMem64 ENDP\r | |
45 | \r | |
46 | END\r |