Files
system76-edk2/MdePkg/Library/BaseMemoryLibMmx/Ia32/ZeroMem.S
qhuang8 b7089db120 1.Fix .global issue in GAS (EdkT207).
2.Fix Label start with @ (EdkT208).

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1610 6f19259b-4bc3-4df7-8a09-765794883524
2006-09-25 10:05:26 +00:00

55 lines
1.4 KiB
ArmAsm

#------------------------------------------------------------------------------
#
# 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:
#
# ZeroMem.asm
#
# Abstract:
#
# ZeroMem function
#
# Notes:
#
#------------------------------------------------------------------------------
.globl _InternalMemZeroMem
#------------------------------------------------------------------------------
# VOID *
# EFIAPI
# InternalMemZeroMem (
# IN VOID *Buffer,
# IN UINTN Count
# );
#------------------------------------------------------------------------------
_InternalMemZeroMem:
push %edi
movl 8(%esp), %edi
movl 12(%esp), %ecx
movl %ecx, %edx
shrl $3, %ecx
jz L_ZeroBytes
pxor %mm0, %mm0
L0:
movq %mm0, (%edi)
addl $8, %edi
loop L0
L_ZeroBytes:
andl $7, %edx
xorl %eax, %eax
movl %edx, %ecx
rep
stosb
movl 8(%esp), %eax
pop %edi
ret