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;------------------------------------------------------------------------------
;
; 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
|
