;------------------------------------------------------------------------------ | |
; | |
; 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: | |
; | |
; 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 |