;------------------------------------------------------------------------------

;

; 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:

;

; SetMem.asm

;

; Abstract:

;

; SetMem function

;

; Notes:

;

;------------------------------------------------------------------------------

.686

.model flat,C

.mmx

.code

;------------------------------------------------------------------------------

; VOID *

; EFIAPI

; InternalMemSetMem (

; IN VOID *Buffer,

; IN UINTN Count,

; IN UINT8 Value

; )

;------------------------------------------------------------------------------

InternalMemSetMem PROC USES edi

mov al, [esp + 16]

mov ah, al

shrd edx, eax, 16

shld eax, edx, 16

mov ecx, [esp + 12] ; ecx <- Count

mov edi, [esp + 8] ; edi <- Buffer

mov edx, ecx

and edx, 7

shr ecx, 3 ; # of Qwords to set

jz @SetBytes

add esp, -10h

movq [esp], mm0 ; save mm0

movq [esp + 8], mm1 ; save mm1

movd mm0, eax

movd mm1, eax

psllq mm0, 32

por mm0, mm1 ; fill mm0 with 8 Value's

@@:

movq [edi], mm0

add edi, 8

loop @B

movq mm0, [esp] ; restore mm0

movq mm1, [esp + 8] ; restore mm1

add esp, 10h ; stack cleanup

@SetBytes:

mov ecx, edx

rep stosb

mov eax, [esp + 8] ; eax <- Buffer as return value

ret

InternalMemSetMem ENDP

END