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60 lines
1.3 KiB
C++
60 lines
1.3 KiB
C++
/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2019 CaH4e3
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Family Network System controller
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*
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*/
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#include <string.h>
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#include "share.h"
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static int readbit;
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static int32 readdata;
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static uint8 Read(int w, uint8 ret)
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{
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if (!w)
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{
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if (readbit < 24) {
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ret |= ((readdata >> readbit) & 1) << 1;
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readbit++;
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} else
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ret |= 2; // sense!
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}
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return ret;
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}
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static void Strobe(void)
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{
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readbit = 0;
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}
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static void Update(void *data, int arg)
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{
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readdata = *(uint32*)data;
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}
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static INPUTCFC FamiNetSys = { Read, 0, Strobe, Update, 0, 0 };
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INPUTCFC *FCEU_InitFamiNetSys(void)
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{
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return(&FamiNetSys);
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}
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