audk/MdePkg/Library/BaseMemoryLibOptPei/Ia32/SetMem.S

51 lines
1.4 KiB
ArmAsm

#------------------------------------------------------------------------------
#
# Copyright (c) 2006 - 2008, 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.S
#
# 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
movl 12(%esp),%ecx
movb 16(%esp),%al
movb %al, %ah
shrd $16, %eax, %edx
shld $16, %edx, %eax
movl %ecx, %edx
movl 8(%esp),%edi
shr $2, %ecx
rep stosl
movl %edx, %ecx
andl $3, %ecx
rep stosb
movl 8(%esp),%eax
pop %edi
ret