99 lines
2.2 KiB
ArmAsm
Executable File
99 lines
2.2 KiB
ArmAsm
Executable File
@*****************************************************************************
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@*
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@* This program is free software ; you can redistribute it and/or modify
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@* it under the terms of the GNU General Public License as published by
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@* the Free Software Foundation; either version 2 of the License, or
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@* (at your option) any later version.
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@*
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@* This program is distributed in the hope that it will be useful,
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@* but WITHOUT ANY WARRANTY; without even the implied warranty of
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@* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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@* GNU General Public License for more details.
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@*
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@* You should have received a copy of the GNU General Public License
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@* along with this program; if not, write to the Free Software
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@* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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@*
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@* $Id: idct_wmmx.s 324 2005-11-02 04:49:29Z picard $
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@*
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@* The Core Pocket Media Player
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@* Copyright (c) 2004-2005 Gabor Kovacs
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@*
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@*****************************************************************************
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.global WMMXIDCT_Const8x8
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.align 2
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@WMMXIDCT_Const8x8(int v,uint8_t * Dst,int DstPitch, uint8_t * Src)
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WMMXIDCT_Const8x8:
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cmp r0,#0
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bgt const8x8add
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blt const8x8sub
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cmp r1,r3
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beq const8x8done
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.macro const8x8copyrow
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wldrd wr1,[r3]
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add r3,r3,#8
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wldrd wr2,[r3]
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add r3,r3,#8
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wstrd wr1,[r1]
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add r1,r1,r2
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wstrd wr2,[r1]
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add r1,r1,r2
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.endm
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const8x8copyrow
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const8x8copyrow
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const8x8copyrow
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const8x8copyrow
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const8x8done:
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mov pc,lr
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const8x8add:
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.macro const8x8addrow
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wldrd wr1,[r3]
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add r3,r3,#8
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wldrd wr2,[r3]
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add r3,r3,#8
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waddbus wr1,wr1,wr0
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waddbus wr2,wr2,wr0
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wstrd wr1,[r1]
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add r1,r1,r2
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wstrd wr2,[r1]
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add r1,r1,r2
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.endm
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tbcstb wr0,r0
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const8x8addrow
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const8x8addrow
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const8x8addrow
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const8x8addrow
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mov pc,lr
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const8x8sub:
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.macro const8x8subrow
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wldrd wr1,[r3]
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add r3,r3,#8
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wldrd wr2,[r3]
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add r3,r3,#8
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wsubbus wr1,wr1,wr0
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wsubbus wr2,wr2,wr0
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wstrd wr1,[r1]
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add r1,r1,r2
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wstrd wr2,[r1]
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add r1,r1,r2
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.endm
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rsb r0,r0,#0
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tbcstb wr0,r0
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const8x8subrow
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const8x8subrow
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const8x8subrow
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const8x8subrow
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mov pc,lr
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