]> git.proxmox.com Git - mirror_edk2.git/blame - MdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.asm
1. Updated function headers for all assembly function
[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibMmx / X64 / SetMem64.asm
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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
34InternalMemSetMem64 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
44InternalMemSetMem64 ENDP\r
45\r
46 END\r