;------------------------------------------------------------------------------ ; ; Copyright (c) 2006, 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: ; ; ZeroMem.asm ; ; Abstract: ; ; ZeroMem function ; ; Notes: ; ;------------------------------------------------------------------------------ .686 .model flat,C .mmx .code ;------------------------------------------------------------------------------ ; VOID * ; InternalMemZeroMem ( ; IN VOID *Buffer, ; IN UINTN Count ; ); ;------------------------------------------------------------------------------ InternalMemZeroMem PROC USES edi mov edi, [esp + 8] mov ecx, [esp + 12] mov edx, ecx shr ecx, 3 jz @ZeroBytes pxor mm0, mm0 @@: movq [edi], mm0 add edi, 8 loop @B @ZeroBytes: and edx, 7 xor eax, eax mov ecx, edx rep stosb mov eax, [esp + 8] ret InternalMemZeroMem ENDP END