Fix capitalization issues
[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibMmx / Ia32 / SetMem.asm
1 ;------------------------------------------------------------------------------
2 ;
3 ; Copyright (c) 2006, Intel Corporation
4 ; All rights reserved. This program and the accompanying materials
5 ; are licensed and made available under the terms and conditions of the BSD License
6 ; which accompanies this distribution. The full text of the license may be found at
7 ; http://opensource.org/licenses/bsd-license.php
8 ;
9 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11 ;
12 ; Module Name:
13 ;
14 ; SetMem.asm
15 ;
16 ; Abstract:
17 ;
18 ; SetMem function
19 ;
20 ; Notes:
21 ;
22 ;------------------------------------------------------------------------------
23
24 .686
25 .model flat,C
26 .xmm
27 .code
28
29 ;------------------------------------------------------------------------------
30 ; VOID *
31 ; _mem_SetMem (
32 ; IN VOID *Buffer,
33 ; IN UINTN Count,
34 ; IN UINT8 Value
35 ; )
36 ;------------------------------------------------------------------------------
37 InternalMemSetMem PROC USES edi
38 mov ecx, [esp + 12] ; ecx <- Count
39 mov edi, [esp + 8] ; edi <- Buffer
40 mov edx, ecx
41 shr ecx, 3 ; # of Qwords to set
42 mov al, [esp + 16] ; al <- Value
43 jz @SetBytes
44 mov ah, al ; ax <- Value | (Value << 8)
45 push ecx
46 push ecx
47 movq [esp], mm0 ; save mm0
48 movd mm0, eax
49 pshufw mm0, mm0, 0 ; fill mm0 with 8 Value's
50 @@:
51 movntq [edi], mm0
52 add edi, 8
53 loop @B
54 mfence
55 movq mm0, [esp] ; restore mm0
56 pop ecx ; stack cleanup
57 pop ecx
58 @SetBytes:
59 and edx, 7
60 mov ecx, edx
61 rep stosb
62 mov eax, [esp + 8] ; eax <- Buffer as return value
63 ret
64 InternalMemSetMem ENDP
65
66 END