#------------------------------------------------------------------------------ | |
# | |
# 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: | |
# | |
# CompareMem.Asm | |
# | |
# 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 |