1 ;------------------------------------------------------------------------------
3 ; Copyright (c) 2006, Intel Corporation
4 ; All rights reserved. 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
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.
22 ;------------------------------------------------------------------------------
26 ;------------------------------------------------------------------------------
34 ;------------------------------------------------------------------------------
35 .intel_syntax noprefix
36 .globl ASM_PFX(InternalMemSetMem)
37 ASM_PFX(InternalMemZeroMem):
38 InternalMemSetMem PROC USES rdi rbx
41 push rcx ; push Buffer
42 mov rax, r8 ; rax = Value
43 and rax, 0ffh ; rax = lower 8 bits of r8, upper 56 bits are 0
46 shl rax, 10h ; rax = ax << 16
48 mov rbx, rax ; ebx = eax
49 shl rax, 20h ; rax = rax << 32
50 or rax, rbx ; eax = ebx
51 mov rdi, rcx ; rdi = Buffer
52 mov rcx, rdx ; rcx = Count
53 shr rcx, 3 ; rcx = rcx / 8
56 mov rcx, rdx ; rcx = rdx
57 and rcx, 7 ; rcx = rcx & 7
59 pop rax ; rax = Buffer
63 InternalMemSetMem ENDP