mirror of https://github.com/acidanthera/audk.git
54 lines
1.5 KiB
ArmAsm
54 lines
1.5 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:
|
||
|
|
#
|
||
|
|
# CompareMem.Asm
|
||
|
|
#
|
||
|
|
# Abstract:
|
||
|
|
#
|
||
|
|
# CompareMem function
|
||
|
|
#
|
||
|
|
# Notes:
|
||
|
|
#
|
||
|
|
# The following BaseMemoryLib instances share the same version of this file:
|
||
|
|
#
|
||
|
|
# BaseMemoryLibRepStr
|
||
|
|
# BaseMemoryLibMmx
|
||
|
|
# BaseMemoryLibSse2
|
||
|
|
#
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
|
||
|
.globl _InternalMemCompareMem
|
||
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# INTN
|
||
|
|
# EFIAPI
|
||
|
|
# InternalMemCompareMem (
|
||
|
|
# IN CONST VOID *DestinationBuffer,
|
||
|
|
# IN CONST VOID *SourceBuffer,
|
||
|
|
# IN UINTN Length
|
||
|
|
# );
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
_InternalMemCompareMem:
|
||
|
|
push %esi
|
||
|
|
push %edi
|
||
|
|
movl 12(%esp), %esi
|
||
|
|
movl 16(%esp), %edi
|
||
|
|
movl 20(%esp), %ecx
|
||
|
|
repe cmpsb
|
||
|
|
movzbl -1(%esi), %eax
|
||
|
|
movzbl -1(%edi), %edx
|
||
|
|
subl %edx, %eax
|
||
|
|
pop %edi
|
||
|
|
pop %esi
|
||
|
|
ret
|