]>
Commit | Line | Data |
---|---|---|
878ddf1f | 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 | |
26 | ;------------------------------------------------------------------------------\r | |
27 | ; VOID *\r | |
db8f40e2 | 28 | ; InternalMemSetMem64 (\r |
878ddf1f | 29 | ; IN VOID *Buffer,\r |
30 | ; IN UINTN Count,\r | |
db8f40e2 | 31 | ; IN UINT64 Value\r |
878ddf1f | 32 | ; )\r |
33 | ;------------------------------------------------------------------------------\r | |
db8f40e2 | 34 | InternalMemSetMem64 PROC\r |
35 | mov rax, rcx\r | |
36 | test dl, 8\r | |
37 | xchg rcx, rdx\r | |
878ddf1f | 38 | jz @F\r |
db8f40e2 | 39 | mov [rdx], r8\r |
40 | add rdx, 8\r | |
41 | dec rcx\r | |
878ddf1f | 42 | @@:\r |
878ddf1f | 43 | shr rcx, 1\r |
44 | jz @SetQwords\r | |
45 | movd xmm0, r8\r | |
46 | movlhps xmm0, xmm0\r | |
47 | @@:\r | |
db8f40e2 | 48 | movntdq [rdx], xmm0\r |
49 | lea rdx, [rdx + 16]\r | |
878ddf1f | 50 | loop @B\r |
51 | mfence\r | |
52 | @SetQwords:\r | |
db8f40e2 | 53 | jnc @F\r |
54 | mov [rdx], r8\r | |
878ddf1f | 55 | @@:\r |
56 | ret\r | |
57 | InternalMemSetMem64 ENDP\r | |
58 | \r | |
59 | END\r |