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 ; EfiSetMemRep8.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 rbx 35 cmp rdx, 0 ; if Size == 0, do nothing 36 je @SetDone 37 mov rax, r8 38 mov bl, al 39 mov bh, bl 40 mov ax, bx 41 shl rax, 10h 42 mov ax, bx 43 mov ebx, eax 44 shl rax, 20h 45 mov eax, ebx 46 mov rdi, rcx 47 mov rcx, rdx 48 shr rcx, 3 49 rep stosq 50 mov rcx, rdx 51 and rcx, 7 52 rep stosb 53 @SetDone: 54 ret 55 EfiCommonLibSetMem ENDP 56 57 END 58 59
