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;------------------------------------------------------------------------------
;
; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
; Module Name:
;
; ZeroMem.nasm
;
; Abstract:
;
; ZeroMem function
;
; Notes:
;
;------------------------------------------------------------------------------
SECTION .text
;------------------------------------------------------------------------------
; VOID *
; InternalMemZeroMem (
; IN VOID *Buffer,
; IN UINTN Count
; );
;------------------------------------------------------------------------------
global ASM_PFX(InternalMemZeroMem)
ASM_PFX(InternalMemZeroMem):
push edi
mov edi, [esp + 8]
mov ecx, [esp + 12]
mov edx, ecx
shr ecx, 3
jz @ZeroBytes
pxor mm0, mm0
.0:
movq [edi], mm0
add edi, 8
loop .0
@ZeroBytes:
and edx, 7
xor eax, eax
mov ecx, edx
rep stosb
mov eax, [esp + 8]
pop edi
ret
|
