mirror of https://github.com/acidanthera/audk.git
50 lines
1.3 KiB
NASM
50 lines
1.3 KiB
NASM
|
;------------------------------------------------------------------------------
|
||
|
|
;
|
||
|
|
; 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:
|
||
|
|
;
|
||
|
|
; ZeroMem.Asm
|
||
|
|
;
|
||
|
|
; Abstract:
|
||
|
|
;
|
||
|
|
; ZeroMem function
|
||
|
|
;
|
||
|
|
; Notes:
|
||
|
|
;
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
DEFAULT REL
|
||
|
|
SECTION .text
|
||
|
|
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
; VOID *
|
||
|
|
; InternalMemZeroMem (
|
||
|
|
; IN VOID *Buffer,
|
||
|
|
; IN UINTN Count
|
||
|
|
; );
|
||
|
|
;------------------------------------------------------------------------------
|
||
|
|
global ASM_PFX(InternalMemZeroMem)
|
||
|
|
ASM_PFX(InternalMemZeroMem):
|
||
|
|
push rdi
|
||
|
|
push rcx
|
||
|
|
xor rax, rax
|
||
|
|
mov rdi, rcx
|
||
|
|
mov rcx, rdx
|
||
|
|
shr rcx, 3
|
||
|
|
and rdx, 7
|
||
|
|
rep stosq
|
||
|
|
mov ecx, edx
|
||
|
|
rep stosb
|
||
|
|
pop rax
|
||
|
|
pop rdi
|
||
|
|
ret
|
||
|
|
|