1 #------------------------------------------------------------------------------
3 # Copyright (c) 2006, Intel Corporation
4 # All rights reserved. This program and the accompanying materials
5 # are licensed and made available under the terms and conditions of the BSD License
6 # which accompanies this distribution. The full text of the license may be found at
7 # http://opensource.org/licenses/bsd-license.php
9 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
22 #------------------------------------------------------------------------------
27 .global _InternalMemCopyMem
31 movl 16(%esp),%esi # esi <- Source
32 movl 12(%esp),%edi # edi <- Destination
33 movl 20(%esp),%edx # edx <- Count
34 leal -1(%edi,%edx),%eax # eax <- End of Destination
38 jae @CopyBackward # Copy backward if overlapped
44 movsl # Copy as many Dwords as possible
47 movl %eax,%edi # edi <- End of Destination
48 leal -1(%esi,%edx),%esi # esi <- End of Source
53 movsb # Copy bytes backward
55 movl 12(%esp),%eax # eax <- Destination as return value