audk/MdePkg/Library/BaseMemoryLibOptPei/x64/SetMem.asm

46 lines
1.3 KiB
NASM

;------------------------------------------------------------------------------
;
; Copyright (c) 2006, 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:
;
; SetMem.Asm
;
; Abstract:
;
; SetMem function
;
; Notes:
;
;------------------------------------------------------------------------------
.code
;------------------------------------------------------------------------------
; VOID *
; EFIAPI
; InternalMemSetMem (
; IN VOID *Buffer,
; IN UINTN Count,
; IN UINT8 Value
; )
;------------------------------------------------------------------------------
InternalMemSetMem PROC USES rdi
push rcx ; push Buffer
mov rax, r8 ; rax = Value
mov rdi, rcx ; rdi = Buffer
mov rcx, rdx ; rcx = Count
rep stosb
pop rax ; rax = Buffer
ret
InternalMemSetMem ENDP
END