4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync;------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; are licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; which accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; Module Name:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; CopyMem function
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync;------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync .model flat,C
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync;------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; InternalMemCopyMem (
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; IN VOID *Destination,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; IN VOID *Source,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; IN UINTN Count
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync;------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncInternalMemCopyMem PROC USES esi edi
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov esi, [esp + 16] ; esi <- Source
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov edi, [esp + 12] ; edi <- Destination
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov edx, [esp + 20] ; edx <- Count
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync lea eax, [esi + edx - 1] ; eax <- End of Source
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cmp esi, edi
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cmp eax, edi ; Overlapped?
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync jae @CopyBackward ; Copy backward if overlapped
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov ecx, edx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync shr ecx, 3 ; ecx <- # of Qwords to copy
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync jz @CopyBytes
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movq [esp], mm0 ; save mm0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movq mm0, [esi]
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movq [edi], mm0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movq mm0, [esp] ; restore mm0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pop ecx ; stack cleanup
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pop ecx ; stack cleanup
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync jmp @CopyBytes
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync@CopyBackward:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov esi, eax ; esi <- Last byte in Source
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync lea edi, [edi + edx - 1] ; edi <- Last byte in Destination
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov ecx, edx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov eax, [esp + 12]
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncInternalMemCopyMem ENDP