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#------------------------------------------------------------------------------
#
# 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:
#
# SetMem32.asm
#
# Abstract:
#
# SetMem32 function
#
# Notes:
#
#------------------------------------------------------------------------------
.686:
#.MODEL flat,C
.xmm:
.code:
#------------------------------------------------------------------------------
# VOID *
# _mem_SetMem32 (
# IN VOID *Buffer,
# IN UINTN Count,
# IN UINT32 Value
# )
#------------------------------------------------------------------------------
.global _InternalMemSetMem32
_InternalMemSetMem32:
push %edi
movl 12(%esp), %edx
movl 8(%esp), %edi
xorl %ecx, %ecx
subl %edi, %ecx
andl $15, %ecx # ecx + edi aligns on 16-byte boundary
movl 16(%esp), %eax
jz L0
shrl $2, %ecx
cmpl %edx, %ecx
cmova %edx, %ecx
subl %ecx, %edx
rep
stosl
L0:
movl %edx, %ecx
andl $3, %edx
shrl $2, %ecx
jz @SetDwords
movd %eax, %xmm0
pshufd $0, %xmm0, %xmm0
L1:
movntdq %xmm0, (%edi)
addl $16, %edi
loop L1
mfence
@SetDwords:
movl %edx, %ecx
rep
stosl
movl 8(%esp), %eax
pop %edi
ret
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