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 ;------------------------------------------------------------------------------
28 InternalMemCopyMem PROC USES esi edi
29 mov esi, [esp + 16] ; esi <- Source
30 mov edi, [esp + 12] ; edi <- Destination
31 mov edx, [esp + 20] ; edx <- Count
32 lea eax, [edi + edx - 1] ; eax <- End of Destination
36 jae @CopyBackward ; Copy backward if overlapped
41 rep movsd ; Copy as many Dwords as possible
44 mov edi, eax ; edi <- End of Destination
45 lea esi, [esi + edx - 1] ; esi <- End of Source
49 rep movsb ; Copy bytes backward
51 mov eax, [esp + 12] ; eax <- Destination as return value
53 InternalMemCopyMem ENDP