1 /* FCE Ultra - NES/Famicom Emulator
3 * Copyright notice for this file:
4 * Copyright (C) 2002 Xodnizel
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 static uint32 pprsb[2];
28 static uint32 pprdata[2];
30 static uint8 FP_FASTAPASS(1) ReadPP(int w)
33 ret|=((pprdata[w]>>pprsb[w])&1)<<3;
34 ret|=((pprdata[w]>>(pprsb[w]+8))&1)<<4;
46 static void FP_FASTAPASS(1) StrobePP(int w)
51 void FP_FASTAPASS(3) UpdatePP(int w, void *data, int arg)
53 static const char shifttableA[12]={8,9,0,1,11,7,4,2,10,6,5,3};
54 static const char shifttableB[12]={1,0,9,8,2,4,7,11,3,5,6,10};
61 pprdata[w]|=(((*(uint32 *)data)>>x)&1)<<shifttableA[x];
64 pprdata[w]|=(((*(uint32 *)data)>>x)&1)<<shifttableB[x];
67 static INPUTC PwrPadCtrl={ReadPP,0,StrobePP,UpdatePP,0,0};
69 static INPUTC *FCEU_InitPowerpad(int w)
71 pprsb[w]=pprdata[w]=0;
75 INPUTC *FCEU_InitPowerpadA(int w)
78 return(FCEU_InitPowerpad(w));
81 INPUTC *FCEU_InitPowerpadB(int w)
84 return(FCEU_InitPowerpad(w));