audk/EdkCompatibilityPkg/Foundation/Library/CompilerStub/x64/memsetRep1.asm

49 lines
1.4 KiB
NASM

;------------------------------------------------------------------------------
;
; Copyright (c) 2007, Intel Corporation
; All rights reserved. This program and the accompanying materials
; are licensed and made available under the terms and conditions of the BSD License
; which accompanies this distribution. The full text of the license may be found at
; http://opensource.org/licenses/bsd-license.php
;
; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
;
; Module Name:
;
; memsetRep1.asm
;
; Abstract:
;
; SetMem function
;
; Notes:
;
;------------------------------------------------------------------------------
.code
;------------------------------------------------------------------------------
; VOID *
; memset (
; OUT VOID *Buffer,
; IN UINTN Size,
; IN UINT8 Value
; );
;------------------------------------------------------------------------------
memset PROC USES rdi
cmp rdx, 0 ; if Size == 0, do nothing
mov r9, rcx
je @SetDone
mov rax, r8
mov rdi, rcx
mov rcx, rdx
rep stosb
@SetDone:
mov rax, r9
ret
memset ENDP
END