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;------------------------------------------------------------------------------
;
; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
; 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:
;
; SetMem64.asm
;
; Abstract:
;
; SetMem64 function
;
; Notes:
;
;------------------------------------------------------------------------------
.686
.model flat,C
.xmm
.code
;------------------------------------------------------------------------------
; VOID *
; EFIAPI
; InternalMemSetMem64 (
; IN VOID *Buffer,
; IN UINTN Count,
; IN UINT64 Value
; )
;------------------------------------------------------------------------------
InternalMemSetMem64 PROC
mov eax, [esp + 4] ; eax <- Buffer
mov ecx, [esp + 8] ; ecx <- Count
test al, 8
mov edx, eax
movq xmm0, qword ptr [esp + 12]
jz @F
movq qword ptr [edx], xmm0
add edx, 8
dec ecx
@@:
shr ecx, 1
jz @SetQwords
movlhps xmm0, xmm0
@@:
movntdq [edx], xmm0
lea edx, [edx + 16]
loop @B
mfence
@SetQwords:
jnc @F
movq qword ptr [edx], xmm0
@@:
ret
InternalMemSetMem64 ENDP
END
|
