1;------------------------------------------------------------------------------ 2; 3; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 4; 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. 8; 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. 11; 12; Module Name: 13; 14; ZeroMem.asm 15; 16; Abstract: 17; 18; ZeroMem function 19; 20; Notes: 21; 22;------------------------------------------------------------------------------ 23 24 .686 25 .model flat,C 26 .mmx 27 .code 28 29;------------------------------------------------------------------------------ 30; VOID * 31; InternalMemZeroMem ( 32; IN VOID *Buffer, 33; IN UINTN Count 34; ); 35;------------------------------------------------------------------------------ 36InternalMemZeroMem PROC USES edi 37 mov edi, [esp + 8] 38 mov ecx, [esp + 12] 39 mov edx, ecx 40 shr ecx, 3 41 jz @ZeroBytes 42 pxor mm0, mm0 43@@: 44 movq [edi], mm0 45 add edi, 8 46 loop @B 47@ZeroBytes: 48 and edx, 7 49 xor eax, eax 50 mov ecx, edx 51 rep stosb 52 mov eax, [esp + 8] 53 ret 54InternalMemZeroMem ENDP 55 56 END 57