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Commit | Line | Data |
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e53526ca JJ |
1 | ;------------------------------------------------------------------------------\r |
2 | ;\r | |
3 | ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r | |
9344f092 | 4 | ; SPDX-License-Identifier: BSD-2-Clause-Patent\r |
e53526ca JJ |
5 | ;\r |
6 | ; Module Name:\r | |
7 | ;\r | |
8 | ; SetMem16.nasm\r | |
9 | ;\r | |
10 | ; Abstract:\r | |
11 | ;\r | |
12 | ; SetMem16 function\r | |
13 | ;\r | |
14 | ; Notes:\r | |
15 | ;\r | |
16 | ;------------------------------------------------------------------------------\r | |
17 | \r | |
18 | DEFAULT REL\r | |
19 | SECTION .text\r | |
20 | \r | |
21 | ;------------------------------------------------------------------------------\r | |
22 | ; VOID *\r | |
23 | ; InternalMemSetMem16 (\r | |
24 | ; IN VOID *Buffer,\r | |
25 | ; IN UINTN Count,\r | |
26 | ; IN UINT16 Value\r | |
27 | ; )\r | |
28 | ;------------------------------------------------------------------------------\r | |
29 | global ASM_PFX(InternalMemSetMem16)\r | |
30 | ASM_PFX(InternalMemSetMem16):\r | |
31 | push rdi\r | |
32 | mov rdi, rcx\r | |
33 | mov r9, rdi\r | |
34 | xor rcx, rcx\r | |
35 | sub rcx, rdi\r | |
d25fd871 | 36 | and rcx, 63\r |
e53526ca JJ |
37 | mov rax, r8\r |
38 | jz .0\r | |
39 | shr rcx, 1\r | |
40 | cmp rcx, rdx\r | |
41 | cmova rcx, rdx\r | |
42 | sub rdx, rcx\r | |
43 | rep stosw\r | |
44 | .0:\r | |
45 | mov rcx, rdx\r | |
d25fd871 CJ |
46 | and edx, 31\r |
47 | shr rcx, 5\r | |
e53526ca JJ |
48 | jz @SetWords\r |
49 | movd xmm0, eax\r | |
50 | pshuflw xmm0, xmm0, 0\r | |
51 | movlhps xmm0, xmm0\r | |
52 | .1:\r | |
53 | movntdq [rdi], xmm0\r | |
d25fd871 CJ |
54 | movntdq [rdi + 16], xmm0\r |
55 | movntdq [rdi + 32], xmm0\r | |
56 | movntdq [rdi + 48], xmm0\r | |
57 | add rdi, 64\r | |
e53526ca JJ |
58 | loop .1\r |
59 | mfence\r | |
60 | @SetWords:\r | |
61 | mov ecx, edx\r | |
62 | rep stosw\r | |
63 | mov rax, r9\r | |
64 | pop rdi\r | |
65 | ret\r | |
66 | \r |