1 ;------------------------------------------------------------------------------ 2 ; 3 ; Copyright (c) 2007, 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 ; EfiSetMemRep4.asm 15 ; 16 ; Abstract: 17 ; 18 ; SetMem function 19 ; 20 ; Notes: 21 ; 22 ;------------------------------------------------------------------------------ 23 24 .code 25 26 ;------------------------------------------------------------------------------ 27 ; VOID 28 ; EfiCommonLibSetMem ( 29 ; OUT VOID *Buffer, 30 ; IN UINTN Size, 31 ; IN UINT8 Value 32 ; ); 33 ;------------------------------------------------------------------------------ 34 EfiCommonLibSetMem PROC USES rdi 35 cmp rdx, 0 ; if Size == 0, do nothing 36 je @SetDone 37 mov rdi, rcx 38 mov al, r8b 39 mov ah, al 40 shrd ecx, eax, 16 41 shld eax, ecx, 16 42 mov rcx, rdx 43 shr rcx, 2 44 rep stosd 45 mov rcx, rdx 46 and rcx, 3 47 rep stosb 48 @SetDone: 49 ret 50 EfiCommonLibSetMem ENDP 51 52 END 53 54
