#------------------------------------------------------------------------------

#

# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>

# 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.S

#

# Abstract:

#

# CompareMem function

#

# Notes:

#

# The following BaseMemoryLib instances contain the same copy of this file:

#

# BaseMemoryLibRepStr

# BaseMemoryLibMmx

# BaseMemoryLibSse2

# BaseMemoryLibOptDxe

# BaseMemoryLibOptPei

#

#------------------------------------------------------------------------------

ASM_GLOBAL ASM_PFX(InternalMemCompareMem)

#------------------------------------------------------------------------------

# INTN

# EFIAPI

# InternalMemCompareMem (

# IN CONST VOID *DestinationBuffer,

# IN CONST VOID *SourceBuffer,

# IN UINTN Length

# );

#------------------------------------------------------------------------------

ASM_PFX(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