audk/MdePkg/Library/BaseMemoryLibRepStr/Ia32/ScanMem32.S

44 lines
1.1 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:
#
# ScanMem32.Asm
#
# Abstract:
#
# ScanMem32 function
#
# Notes:
#
# The following BaseMemoryLib instances share the same version of this file:
#
# BaseMemoryLibRepStr
# BaseMemoryLibMmx
# BaseMemoryLibSse2
#
#------------------------------------------------------------------------------
.686:
.code:
.global _InternalMemScanMem32
_InternalMemScanMem32:
push %edi
movl 12(%esp),%ecx
movl 8(%esp),%edi
movl 16(%esp),%eax
repne scasl
leal -4(%edi),%eax
cmovnz %ecx, %eax
pop %edi
ret