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f1baef62 1;------------------------------------------------------------------------------\r
2;\r
c33c6476
HT
3; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r
4; This program and the accompanying materials\r
f1baef62 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
28; InternalMemSetMem64 (\r
29; IN VOID *Buffer,\r
30; IN UINTN Count,\r
31; IN UINT64 Value\r
32; )\r
33;------------------------------------------------------------------------------\r
34InternalMemSetMem64 PROC\r
35 mov rax, rcx ; rax <- Buffer\r
36 xchg rcx, rdx ; rcx <- Count & rdx <- Buffer\r
37 test dl, 8\r
38 movd xmm0, r8\r
39 jz @F\r
40 mov [rdx], r8\r
41 add rdx, 8\r
42 dec rcx\r
43@@:\r
44 shr rcx, 1\r
45 jz @SetQwords\r
46 movlhps xmm0, xmm0\r
47@@:\r
48 movntdq [rdx], xmm0\r
49 lea rdx, [rdx + 16]\r
50 loop @B\r
51 mfence\r
52@SetQwords:\r
53 jnc @F\r
54 mov [rdx], r8\r
55@@:\r
56 ret\r
57InternalMemSetMem64 ENDP\r
58\r
59 END\r