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;------------------------------------------------------------------------------
;
; Copyright (c) 2006, 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:
;
; SetMem32.asm
;
; Abstract:
;
; SetMem32 function
;
; Notes:
;
;------------------------------------------------------------------------------
.code
InternalMemSetMem32 PROC USES rdi
DB 49h, 0fh, 6eh, 0c0h ; movq mm0, r8 ; mm0 <- Value
mov rax, rcx ; rax <- Buffer
mov rdi, rax
mov rcx, rdx
shr rcx, 1
jz @SetDwords
DB 0fh, 70h, 0C0h, 44h ; pshufw mm0, mm0, 44h
@@:
DB 48h, 0fh, 0e7h, 07h ; movntq [rdi], mm0
add rdi, 8
loop @B
mfence
@SetDwords:
test dl, 1
jz @F
DB 0fh, 7eh, 07h ; movd [rdi], mm0
@@:
ret
InternalMemSetMem32 ENDP
END
|
