]>
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 | ; SetMem16.asm\r | |
15 | ;\r | |
16 | ; Abstract:\r | |
17 | ;\r | |
18 | ; SetMem16 function\r | |
19 | ;\r | |
20 | ; Notes:\r | |
21 | ;\r | |
22 | ;------------------------------------------------------------------------------\r | |
23 | \r | |
24 | .code\r | |
25 | \r | |
26 | ;------------------------------------------------------------------------------\r | |
27 | ; VOID *\r | |
eb227e96 | 28 | ; InternalMemSetMem16 (\r |
878ddf1f | 29 | ; IN VOID *Buffer,\r |
30 | ; IN UINTN Count,\r | |
31 | ; IN UINT16 Value\r | |
32 | ; )\r | |
33 | ;------------------------------------------------------------------------------\r | |
34 | InternalMemSetMem16 PROC USES rdi\r | |
35 | mov rdi, rcx\r | |
36 | mov r9, rdi\r | |
37 | xor rcx, rcx\r | |
38 | sub rcx, rdi\r | |
39 | and rcx, 15\r | |
40 | mov rax, r8\r | |
41 | jz @F\r | |
42 | shr rcx, 1\r | |
43 | cmp rcx, rdx\r | |
44 | cmova rcx, rdx\r | |
45 | sub rdx, rcx\r | |
46 | rep stosw\r | |
47 | @@:\r | |
48 | mov rcx, rdx\r | |
49 | and edx, 7\r | |
50 | shr rcx, 3\r | |
51 | jz @SetWords\r | |
52 | movd xmm0, eax\r | |
53 | pshuflw xmm0, xmm0, 0\r | |
54 | movlhps xmm0, xmm0\r | |
55 | @@:\r | |
56 | movntdq [rdi], xmm0\r | |
57 | add rdi, 16\r | |
58 | loop @B\r | |
59 | mfence\r | |
60 | @SetWords:\r | |
61 | mov ecx, edx\r | |
62 | rep stosw\r | |
63 | mov rax, r9\r | |
64 | ret\r | |
65 | InternalMemSetMem16 ENDP\r | |
66 | \r | |
67 | END\r |