2 // Include common header file for this module.
6 ;------------------------------------------------------------------------------
8 ; Copyright (c) 2006, Intel Corporation
9 ; All rights reserved. This program and the accompanying materials
10 ; are licensed and made available under the terms and conditions of the BSD License
11 ; which accompanies this distribution. The full text of the license may be found at
12 ; http://opensource.org/licenses/bsd-license.php
14 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
15 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
27 ;------------------------------------------------------------------------------
34 ;------------------------------------------------------------------------------
42 ;------------------------------------------------------------------------------
43 InternalMemSetMem PROC USES edi
44 mov edx, [esp + 12] ; edx <- Count
45 mov edi, [esp + 8] ; edi <- Buffer
46 mov al, [esp + 16] ; al <- Value
49 and ecx, 15 ; ecx + edi aligns on 16-byte boundary
58 shr ecx, 4 ; ecx <- # of DQwords to set
60 mov ah, al ; ax <- Value | (Value << 8)
62 movdqu [esp], xmm0 ; save xmm0
64 pshuflw xmm0, xmm0, 0 ; xmm0[0..63] <- Value repeats 8 times
65 movlhps xmm0, xmm0 ; xmm0 <- Value repeats 16 times
67 movntdq [edi], xmm0 ; edi should be 16-byte aligned
71 movdqu xmm0, [esp] ; restore xmm0
72 add esp, 16 ; stack cleanup
76 mov eax, [esp + 8] ; eax <- Buffer as return value
78 InternalMemSetMem ENDP