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.nasm 15 ; 16 ; Abstract: 17 ; 18 ; SetMem32 function 19 ; 20 ; Notes: 21 ; 22 ;------------------------------------------------------------------------------ 23 24 SECTION .text 25 26 ;------------------------------------------------------------------------------ 27 ; VOID * 28 ; EFIAPI 29 ; InternalMemSetMem32 ( 30 ; IN VOID *Buffer, 31 ; IN UINTN Count, 32 ; IN UINT32 Value 33 ; ); 34 ;------------------------------------------------------------------------------ 35 global ASM_PFX(InternalMemSetMem32) 36 ASM_PFX(InternalMemSetMem32): 37 mov eax, [esp + 4] ; eax <- Buffer as return value 38 mov ecx, [esp + 8] ; ecx <- Count 39 movd mm0, dword [esp + 12] ; mm0 <- Value 40 shr ecx, 1 ; ecx <- number of qwords to set 41 mov edx, eax ; edx <- Buffer 42 jz @SetDwords 43 movq mm1, mm0 44 psllq mm1, 32 45 por mm0, mm1 46 .0: 47 movq qword [edx], mm0 48 lea edx, [edx + 8] ; use "lea" to avoid change in flags 49 loop .0 50 @SetDwords: 51 jnc .1 52 movd dword [edx], mm0 53 .1: 54 ret 55 56
