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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:
#
# SetMem.asm
#
# Abstract:
#
# SetMem function
#
# Notes:
#
#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(InternalMemSetMem)
#------------------------------------------------------------------------------
# VOID *
# InternalMemSetMem (
# IN VOID *Buffer,
# IN UINTN Count,
# IN UINT8 Value
# )
#------------------------------------------------------------------------------
ASM_PFX(InternalMemSetMem):
push %edi
movb 16(%esp), %al
movb %al, %ah
shrdl $16, %eax, %edx
shldl $16, %edx, %eax
movl 12(%esp), %ecx # ecx <- Count
movl 8(%esp), %edi # edi <- Buffer
movl %ecx, %edx
andl $7, %edx
shrl $3, %ecx # # of Qwords to set
jz L1
addl $0x-10, %esp
movq %mm0, (%esp) # save mm0
movq %mm1, 8(%esp) # save mm1
movd %eax, %mm0
movd %eax, %mm1
psllq $32, %mm0
por %mm1, %mm0 # fill mm0 with 8 Value's
L0:
movq %mm0, (%edi)
addl $8, %edi
loopl L0
movq (%esp), %mm0 # restore mm0
movq 8(%esp), %mm1 # restore mm1
addl $0x10, %esp # stack cleanup
L1:
movl %edx, %ecx
rep
stosb
movl 8(%esp), %eax # eax <- Buffer as return value
pop %edi
ret
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