mirror of https://github.com/acidanthera/audk.git
56 lines
1.4 KiB
NASM
56 lines
1.4 KiB
NASM
|
;------------------------------------------------------------------------------
|
||
|
|
;
|
||
|
|
; Copyright (c) 2007, Intel Corporation
|
||
|
|
; All rights reserved. This program and the accompanying materials
|
||
|
|
; are licensed and made available under the terms and conditions of the BSD License
|
||
|
|
; which accompanies this distribution. The full text of the license may be found at
|
||
|
|
; http://opensource.org/licenses/bsd-license.php
|
||
|
|
;
|
||
|
|
; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||
|
|
; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||
|
|
;
|
||
|
|
; Module Name:
|
||
|
|
;
|
||
|
|
; SetMem.asm
|
||
|
|
;
|
||
|
|
; Abstract:
|
||
|
|
;
|
||
|
|
; memset function
|
||
|
|
;
|
||
|
|
; Notes:
|
||
|
|
;
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
.code
|
||
|
|
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
; VOID *
|
||
|
|
; memset (
|
||
|
|
; OUT VOID *Buffer,
|
||
|
|
; IN UINT8 Value,
|
||
|
|
; IN UINTN Count
|
||
|
|
; )
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
memset PROC USES rdi
|
||
|
|
cmp r8, 0 ; if Size == 0, do nothing
|
||
|
|
mov r9, rcx
|
||
|
|
je @SetDone
|
||
|
|
mov al, dl
|
||
|
|
mov ah, al
|
||
|
|
shrd edx, eax, 16
|
||
|
|
shld eax, edx, 16
|
||
|
|
mov rdi, rcx
|
||
|
|
mov rcx, r8
|
||
|
|
shr rcx, 2
|
||
|
|
rep stosd
|
||
|
|
mov rcx, r8
|
||
|
|
and rcx, 3
|
||
|
|
rep stosb
|
||
|
|
@SetDone:
|
||
|
|
mov rax, r9
|
||
|
|
ret
|
||
|
|
memset ENDP
|
||
|
|
|
||
|
|
END
|
||
|
|
|