/** * Furnace Tracker - multi-system chiptune tracker * Copyright (C) 2021-2022 tildearrow and contributors * * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef _FMSHARED_BASE_H #define _FMSHARED_BASE_H #include "../dispatch.h" #include #define KVS(x,y) ((chan[x].state.op[y].kvs==2 && isOutput[chan[x].state.alg][y]) || chan[x].state.op[y].kvs==1) class DivPlatformFMBase: public DivDispatch { protected: const bool isOutput[8][4]={ // 1 3 2 4 {false,false,false,true}, {false,false,false,true}, {false,false,false,true}, {false,false,false,true}, {false,false,true ,true}, {false,true ,true ,true}, {false,true ,true ,true}, {true ,true ,true ,true}, }; const unsigned char dtTable[8]={ 7,6,5,0,1,2,3,4 }; const int orderedOps[4]={ 0,2,1,3 }; struct QueuedWrite { unsigned short addr; unsigned char val; bool addrOrVal; QueuedWrite(unsigned short a, unsigned char v): addr(a), val(v), addrOrVal(false) {} }; std::deque writes; unsigned char lastBusy; int delay; unsigned char regPool[512]; short oldWrites[512]; short pendingWrites[512]; inline void rWrite(unsigned short a, short v) { if (!skipRegisterWrites) { pendingWrites[a]=v; } } inline void immWrite(unsigned short a, unsigned char v) { if (!skipRegisterWrites) { writes.push_back(QueuedWrite(a,v)); if (dumpWrites) { addWrite(a,v); } } } inline void urgentWrite(unsigned short a, unsigned char v) { if (!skipRegisterWrites) { if (writes.empty()) { writes.push_back(QueuedWrite(a,v)); } else if (writes.size()>16 || writes.front().addrOrVal) { writes.push_back(QueuedWrite(a,v)); } else { writes.push_front(QueuedWrite(a,v)); } if (dumpWrites) { addWrite(a,v); } } } DivPlatformFMBase(): DivDispatch(), lastBusy(0), delay(0) {} }; #endif