1;------------------------------------------------------------------------------
2;
3; Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
4; 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;   memset function
19;
20; Notes:
21;
22;------------------------------------------------------------------------------
23
24    .code
25
26;------------------------------------------------------------------------------
27;  VOID *
28;  memset (
29;    OUT VOID   *Buffer,
30;    IN  UINT8  Value,
31;    IN  UINTN  Count
32;    )
33;------------------------------------------------------------------------------
34memset   PROC    USES    rdi
35    cmp     r8, 0                      ; if Size == 0, do nothing
36    mov     r9,  rcx
37    je      @SetDone
38    mov     al,  dl
39    mov     ah,  al
40    shrd    edx, eax, 16
41    shld    eax, edx, 16
42    mov     rdi, rcx
43    mov     rcx, r8
44    shr     rcx, 2
45    rep     stosd
46    mov     rcx, r8
47    and     rcx, 3
48    rep     stosb
49@SetDone:
50    mov     rax, r9
51    ret
52memset   ENDP
53
54    END
55
56