idct_wmmx.asm
资源名称:tcpmp.rar [点击查看]
上传用户:wstnjxml
上传日期:2014-04-03
资源大小:7248k
文件大小:2k
源码类别:
Windows CE
开发平台:
C/C++
- ;*****************************************************************************
- ;*
- ;* This program is free software ; you can redistribute it and/or modify
- ;* it under the terms of the GNU General Public License as published by
- ;* the Free Software Foundation; either version 2 of the License, or
- ;* (at your option) any later version.
- ;*
- ;* This program is distributed in the hope that it will be useful,
- ;* but WITHOUT ANY WARRANTY; without even the implied warranty of
- ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ;* GNU General Public License for more details.
- ;*
- ;* You should have received a copy of the GNU General Public License
- ;* along with this program; if not, write to the Free Software
- ;* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- ;*
- ;* $Id: idct_wmmx.asm 324 2005-11-02 04:49:29Z picard $
- ;*
- ;* The Core Pocket Media Player
- ;* Copyright (c) 2004-2005 Gabor Kovacs
- ;*
- ;*****************************************************************************
- AREA |.text|, CODE
- EXPORT WMMXIDCT_Const8x8
- ALIGN 16
- ;WMMXIDCT_Const8x8(int v,uint8_t * Dst,int DstPitch, uint8_t * Src)
- WMMXIDCT_Const8x8 PROC
- cmp r0,#0
- bgt const8x8add
- blt const8x8sub
- cmp r1,r3
- beq const8x8done
- macro
- const8x8copyrow
- wldrd wr1,[r3]
- add r3,r3,#8
- wldrd wr2,[r3]
- add r3,r3,#8
- wstrd wr1,[r1]
- add r1,r1,r2
- wstrd wr2,[r1]
- add r1,r1,r2
- mend
- const8x8copyrow
- const8x8copyrow
- const8x8copyrow
- const8x8copyrow
- const8x8done
- mov pc,lr
- const8x8add
- macro
- const8x8addrow
- wldrd wr1,[r3]
- add r3,r3,#8
- wldrd wr2,[r3]
- add r3,r3,#8
- waddbus wr1,wr1,wr0
- waddbus wr2,wr2,wr0
- wstrd wr1,[r1]
- add r1,r1,r2
- wstrd wr2,[r1]
- add r1,r1,r2
- mend
- tbcstb wr0,r0
- const8x8addrow
- const8x8addrow
- const8x8addrow
- const8x8addrow
- mov pc,lr
- const8x8sub
- macro
- const8x8subrow
- wldrd wr1,[r3]
- add r3,r3,#8
- wldrd wr2,[r3]
- add r3,r3,#8
- wsubbus wr1,wr1,wr0
- wsubbus wr2,wr2,wr0
- wstrd wr1,[r1]
- add r1,r1,r2
- wstrd wr2,[r1]
- add r1,r1,r2
- mend
- rsb r0,r0,#0
- tbcstb wr0,r0
- const8x8subrow
- const8x8subrow
- const8x8subrow
- const8x8subrow
- mov pc,lr
- endp
- end