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; SetMem32.asm 15; 16; Abstract: 17; 18; SetMem32 function 19; 20; Notes: 21; 22;------------------------------------------------------------------------------ 23 24 .686 25 .model flat,C 26 .mmx 27 .code 28 29;------------------------------------------------------------------------------ 30; VOID * 31; EFIAPI 32; InternalMemSetMem32 ( 33; IN VOID *Buffer, 34; IN UINTN Count, 35; IN UINT32 Value 36; ); 37;------------------------------------------------------------------------------ 38InternalMemSetMem32 PROC 39 mov eax, [esp + 4] ; eax <- Buffer as return value 40 mov ecx, [esp + 8] ; ecx <- Count 41 movd mm0, dword ptr [esp + 12] ; mm0 <- Value 42 shr ecx, 1 ; ecx <- number of qwords to set 43 mov edx, eax ; edx <- Buffer 44 jz @SetDwords 45 movq mm1, mm0 46 psllq mm1, 32 47 por mm0, mm1 48@@: 49 movq qword ptr [edx], mm0 50 lea edx, [edx + 8] ; use "lea" to avoid change in flags 51 loop @B 52@SetDwords: 53 jnc @F 54 movd dword ptr [edx], mm0 55@@: 56 ret 57InternalMemSetMem32 ENDP 58 59 END 60