1 #------------------------------------------------------------------------------
3 # Copyright (c) 2006 - 2008, 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 #------------------------------------------------------------------------------
23 #------------------------------------------------------------------------------
31 #------------------------------------------------------------------------------
32 .intel_syntax noprefix
33 .globl ASM_PFX(InternalMemSetMem)
34 ASM_PFX(InternalMemZeroMem):
37 push rcx # push Buffer
38 mov rax, r8 # rax = Value
39 and rax, 0xff # rax = lower 8 bits of r8, upper 56 bits are 0
42 shl rax, 0x10 # rax = ax << 16
44 mov rbx, rax # ebx = eax
45 shl rax, 0x20 # rax = rax << 32
46 or rax, rbx # eax = ebx
47 mov rdi, rcx # rdi = Buffer
48 mov rcx, rdx # rcx = Count
49 shr rcx, 3 # rcx = rcx / 8
52 mov rcx, rdx # rcx = rdx
53 and rcx, 7 # rcx = rcx & 7
55 pop rax # rax = Buffer