674 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			674 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /**
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|  * Furnace Tracker - multi-system chiptune tracker
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|  * Copyright (C) 2021-2022 tildearrow and contributors
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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 along
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|  * with this program; if not, write to the Free Software Foundation, Inc.,
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|  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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|  */
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| 
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| #include "n163.h"
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| #include "../engine.h"
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| #include <math.h>
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| 
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| #define rRead(a,v) n163.addr_w(a); n163.data_r(v);
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| #define rWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); if (dumpWrites) {addWrite(a,v);} }
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| #define rWriteMask(a,v,m) if (!skipRegisterWrites) {writes.emplace(a,v,m); if (dumpWrites) {addWrite(a,v);} }
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| #define chWrite(c,a,v) \
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|   if (c<=chanMax) { \
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|     rWrite(0x78-(c<<3)+(a&7),v) \
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|   }
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| 
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| #define chWriteMask(c,a,v,m) \
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|   if (c<=chanMax) { \
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|     rWriteMask(0x78-(c<<3)+(a&7),v,m) \
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|   }
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| 
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| #define CHIP_FREQBASE (15*32768)
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| 
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| const char* regCheatSheetN163[]={
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|   "FreqL7", "40",
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|   "AccL7", "41",
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|   "FreqM7", "42",
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|   "AccM7", "43",
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|   "WavLen_FreqH7", "44",
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|   "AccH7", "45",
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|   "WavPos7", "46",
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|   "Vol7", "47",
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|   "FreqL6", "48",
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|   "AccL6", "49",
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|   "FreqM6", "4A",
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|   "AccM6", "4B",
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|   "WavLen_FreqH6", "4C",
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|   "AccH6", "4D",
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|   "WavPos6", "4E",
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|   "Vol6", "4F",
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|   "FreqL5", "50",
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|   "AccL5", "51",
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|   "FreqM5", "52",
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|   "AccM5", "53",
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|   "WavLen_FreqH5", "54",
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|   "AccH5", "55",
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|   "WavPos5", "56",
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|   "Vol5", "57",
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|   "FreqL4", "58",
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|   "AccL4", "59",
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|   "FreqM4", "5A",
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|   "AccM4", "5B",
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|   "WavLen_FreqH4", "5C",
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|   "AccH4", "5D",
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|   "WavPos4", "5E",
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|   "Vol4", "5F",
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|   "FreqL3", "60",
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|   "AccL3", "61",
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|   "FreqM3", "62",
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|   "AccM3", "63",
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|   "WavLen_FreqH3", "64",
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|   "AccH3", "65",
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|   "WavPos3", "66",
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|   "Vol3", "67",
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|   "FreqL2", "68",
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|   "AccL2", "69",
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|   "FreqM2", "6A",
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|   "AccM2", "6B",
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|   "WavLen_FreqH2", "6C",
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|   "AccH2", "6D",
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|   "WavPos2", "6E",
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|   "Vol2", "6F",
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|   "FreqL1", "70",
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|   "AccL1", "71",
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|   "FreqM1", "72",
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|   "AccM1", "73",
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|   "WavLen_FreqH1", "74",
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|   "AccH1", "75",
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|   "WavPos1", "76",
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|   "Vol1", "77",
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|   "FreqL0", "78",
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|   "AccL0", "79",
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|   "FreqM0", "7A",
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|   "AccM0", "7B",
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|   "WavLen_FreqH0", "7C",
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|   "AccH0", "7D",
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|   "WavPos0", "7E",
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|   "ChanMax_Vol0", "7F",
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|   NULL
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| };
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| 
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| const char** DivPlatformN163::getRegisterSheet() {
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|   return regCheatSheetN163;
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| }
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| 
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| void DivPlatformN163::acquire(short* bufL, short* bufR, size_t start, size_t len) {
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|   for (size_t i=start; i<start+len; i++) {
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|     n163.tick();
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|     int out=(n163.out()<<6)*2; // scale to 16 bit
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|     if (out>32767) out=32767;
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|     if (out<-32768) out=-32768;
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|     bufL[i]=bufR[i]=out;
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| 
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|     if (n163.voice_cycle()==0x78) for (int i=0; i<8; i++) {
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|       oscBuf[i]->data[oscBuf[i]->needle++]=n163.voice_out(i)<<7;
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|     }
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| 
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|     // command queue
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|     while (!writes.empty()) {
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|       QueuedWrite w=writes.front();
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|       n163.addr_w(w.addr);
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|       n163.data_w((n163.data_r()&~w.mask)|(w.val&w.mask));
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|       writes.pop();
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|     }
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|   }
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| }
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| 
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| void DivPlatformN163::updateWave(int ch, int wave, int pos, int len) {
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|   len&=0xfc; // 4 nibble boundary
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|   if (wave<0) {
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|     // load from wave synth
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|     for (int i=0; i<len; i++) {
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|       unsigned char addr=(pos+i); // address (nibble each)
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|       if (addr>=((0x78-(chanMax<<3))<<1)) { // avoid conflict with channel register area
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|         break;
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|       }
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|       unsigned char mask=(addr&1)?0xf0:0x0f;
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|       int data=chan[ch].ws.output[i];
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|       rWriteMask(addr>>1,(addr&1)?(data<<4):(data&0xf),mask);
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|     }
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|   } else {
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|     // load from custom
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|     DivWavetable* wt=parent->getWave(wave);
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|     for (int i=0; i<len; i++) {
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|       unsigned char addr=(pos+i); // address (nibble each)
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|       if (addr>=((0x78-(chanMax<<3))<<1)) { // avoid conflict with channel register area
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|         break;
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|       }
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|       unsigned char mask=(addr&1)?0xf0:0x0f;
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|       if (wt->max<1 || wt->len<1) {
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|         rWriteMask(addr>>1,0,mask);
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|       } else {
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|         int data=wt->data[i*wt->len/len]*15/wt->max;
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|         if (data<0) data=0;
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|         if (data>15) data=15;
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|         rWriteMask(addr>>1,(addr&1)?(data<<4):(data&0xf),mask);
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|       }
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|     }
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|   }
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| }
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| 
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| void DivPlatformN163::updateWaveCh(int ch) {
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|   if (ch<=chanMax) {
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|     updateWave(ch,-1,chan[ch].wavePos,chan[ch].waveLen);
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|     if (chan[ch].active && !isMuted[ch]) {
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|       chan[ch].volumeChanged=true;
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|     }
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|   }
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| }
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| 
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| void DivPlatformN163::tick(bool sysTick) {
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|   for (int i=0; i<=chanMax; i++) {
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|     chan[i].std.next();
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|     if (chan[i].std.vol.had) {
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|       chan[i].outVol=(MIN(15,chan[i].std.vol.val)*(chan[i].vol&15))/15;
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|       if (chan[i].outVol<0) chan[i].outVol=0;
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|       if (chan[i].outVol>15) chan[i].outVol=15;
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|       if (chan[i].resVol!=chan[i].outVol) {
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|         chan[i].resVol=chan[i].outVol;
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|         if (!isMuted[i]) {
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|           chan[i].volumeChanged=true;
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|         }
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|       }
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|     }
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|     if (chan[i].std.arp.had) {
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|       if (!chan[i].inPorta) {
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|         chan[i].baseFreq=NOTE_FREQUENCY(parent->calcArp(chan[i].note,chan[i].std.arp.val));
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|       }
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|       chan[i].freqChanged=true;
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|     }
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|     if (chan[i].std.duty.had) {
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|       if (chan[i].wavePos!=chan[i].std.duty.val) {
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|         chan[i].wavePos=chan[i].std.duty.val;
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|         if (chan[i].waveMode&0x2) {
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|           chan[i].waveUpdated=true;
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|         }
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|         chan[i].waveChanged=true;
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|       }
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|     }
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|     if (chan[i].std.wave.had) {
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|       if (chan[i].wave!=chan[i].std.wave.val) {
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|         chan[i].wave=chan[i].std.wave.val;
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|         chan[i].ws.changeWave1(chan[i].wave);
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|         if (chan[i].waveMode&0x2) {
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|           chan[i].waveUpdated=true;
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|         }
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|       }
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|     }
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|     if (chan[i].std.pitch.had) {
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|       if (chan[i].std.pitch.mode) {
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|         chan[i].pitch2+=chan[i].std.pitch.val;
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|         CLAMP_VAR(chan[i].pitch2,-32768,32767);
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|       } else {
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|         chan[i].pitch2=chan[i].std.pitch.val;
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|       }
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|       chan[i].freqChanged=true;
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|     }
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|     if (chan[i].std.ex1.had) {
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|       if (chan[i].waveLen!=(chan[i].std.ex1.val&0xfc)) {
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|         chan[i].waveLen=chan[i].std.ex1.val&0xfc;
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|         chan[i].ws.setWidth(chan[i].waveLen);
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|         if (chan[i].waveMode&0x2) {
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|           chan[i].waveUpdated=true;
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|         }
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|         chan[i].freqChanged=true;
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|       }
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|     }
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|     if (chan[i].std.ex2.had) {
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|       if ((chan[i].waveMode&0x2)!=(chan[i].std.ex2.val&0x2)) { // update when every waveform changed
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|         chan[i].waveMode=(chan[i].waveMode&~0x2)|(chan[i].std.ex2.val&0x2);
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|         if (chan[i].waveMode&0x2) {
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|           chan[i].waveUpdated=true;
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|           chan[i].waveChanged=true;
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|         }
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|       }
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|       if ((chan[i].waveMode&0x1)!=(chan[i].std.ex2.val&0x1)) { // update waveform now
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|         chan[i].waveMode=(chan[i].waveMode&~0x1)|(chan[i].std.ex2.val&0x1);
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|         if (chan[i].waveMode&0x1) { // rising edge
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|           chan[i].waveUpdated=true;
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|           chan[i].waveChanged=true;
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|         }
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|       }
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|     }
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|     if (chan[i].std.ex3.had) {
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|       if (chan[i].loadWave!=chan[i].std.ex3.val) {
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|         chan[i].loadWave=chan[i].std.ex3.val;
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|         if (chan[i].loadMode&0x2) {
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|           updateWave(i,chan[i].loadWave,chan[i].loadPos,chan[i].loadLen&0xfc);
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|         }
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|       }
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|     }
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|     if (chan[i].std.alg.had) {
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|       if (chan[i].loadPos!=chan[i].std.alg.val) {
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|         chan[i].loadPos=chan[i].std.alg.val;
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|       }
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|     }
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|     if (chan[i].std.fb.had) {
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|       if (chan[i].loadLen!=(chan[i].std.fb.val&0xfc)) {
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|         chan[i].loadLen=chan[i].std.fb.val&0xfc;
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|       }
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|     }
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|     if (chan[i].std.fms.had) {
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|       if ((chan[i].loadMode&0x2)!=(chan[i].std.fms.val&0x2)) { // load when every waveform changes
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|         chan[i].loadMode=(chan[i].loadMode&~0x2)|(chan[i].std.fms.val&0x2);
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|       }
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|       if ((chan[i].loadMode&0x1)!=(chan[i].std.fms.val&0x1)) { // load now
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|         chan[i].loadMode=(chan[i].loadMode&~0x1)|(chan[i].std.fms.val&0x1);
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|         if (chan[i].loadMode&0x1) { // rising edge
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|           updateWave(i,chan[i].loadWave,chan[i].loadPos,chan[i].loadLen&0xfc);
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|         }
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|       }
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|     }
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|     if (chan[i].volumeChanged) {
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|       if (chan[i].active && !isMuted[i]) {
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|         chWriteMask(i,0x7,chan[i].resVol&0xf,0xf);
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|       } else {
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|         chWriteMask(i,0x7,0,0xf);
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|       }
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|       chan[i].volumeChanged=false;
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|     }
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|     if (chan[i].waveChanged) {
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|       chWrite(i,0x6,chan[i].wavePos);
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|       if (chan[i].active) {
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|         chan[i].freqChanged=true;
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|       }
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|       chan[i].waveChanged=false;
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|     }
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|     if (chan[i].active) {
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|       if (chan[i].ws.tick()) {
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|         chan[i].waveUpdated=true;
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|       }
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|     }
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|     if (chan[i].waveUpdated) {
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|       updateWaveCh(i);
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|       if (chan[i].active) {
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|         if (!chan[i].keyOff) chan[i].keyOn=true;
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|       }
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|       chan[i].waveUpdated=false;
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|     }
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|     if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
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|       // TODO: what is this mess?
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|       chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,2,chan[i].pitch2,chipClock,CHIP_FREQBASE);
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|       chan[i].freq=(((chan[i].freq*chan[i].waveLen)*(chanMax+1))/16);
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|       if (chan[i].freq<0) chan[i].freq=0;
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|       if (chan[i].freq>0x3ffff) chan[i].freq=0x3ffff;
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|       if (chan[i].keyOn) {
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|         if (chan[i].wave<0) {
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|           chan[i].wave=0;
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|           if (chan[i].waveMode&0x2) {
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|             updateWaveCh(i);
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|           }
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|         }
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|       }
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|       if (chan[i].keyOff && !isMuted[i]) {
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|         chWriteMask(i,0x7,0,0xf);
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|       }
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|       chWrite(i,0x0,chan[i].freq&0xff);
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|       chWrite(i,0x2,chan[i].freq>>8);
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|       chWrite(i,0x4,((256-chan[i].waveLen)&0xfc)|((chan[i].freq>>16)&3));
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|       if (chan[i].keyOn) chan[i].keyOn=false;
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|       if (chan[i].keyOff) chan[i].keyOff=false;
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|       chan[i].freqChanged=false;
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|     }
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|   }
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| }
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| 
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| int DivPlatformN163::dispatch(DivCommand c) {
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|   switch (c.cmd) {
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|     case DIV_CMD_NOTE_ON: {
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|       DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_N163);
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|       if (chan[c.chan].insChanged) {
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|         chan[c.chan].wave=ins->n163.wave;
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|         chan[c.chan].ws.changeWave1(chan[c.chan].wave);
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|         chan[c.chan].wavePos=ins->n163.wavePos;
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|         chan[c.chan].waveLen=ins->n163.waveLen;
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|         chan[c.chan].waveMode=ins->n163.waveMode;
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|         chan[c.chan].waveChanged=true;
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|         if (chan[c.chan].waveMode&0x3 || ins->ws.enabled) {
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|           chan[c.chan].waveUpdated=true;
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|         }
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|         chan[c.chan].insChanged=false;
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|       }
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|       if (c.value!=DIV_NOTE_NULL) {
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|         chan[c.chan].baseFreq=NOTE_FREQUENCY(c.value);
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|         chan[c.chan].freqChanged=true;
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|         chan[c.chan].note=c.value;
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|       }
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|       chan[c.chan].active=true;
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|       chan[c.chan].keyOn=true;
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|       chan[c.chan].resVol=chan[c.chan].vol;
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|       if (!isMuted[c.chan]) {
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|         chan[c.chan].volumeChanged=true;
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|       }
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|       chan[c.chan].macroInit(ins);
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|       chan[c.chan].ws.init(ins,chan[c.chan].waveLen,15,chan[c.chan].insChanged);
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|       break;
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|     }
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|     case DIV_CMD_NOTE_OFF:
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|       chan[c.chan].active=false;
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|       chan[c.chan].keyOff=true;
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|       chan[c.chan].keyOn=false;
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|       //chan[c.chan].macroInit(NULL);
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|       break;
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|     case DIV_CMD_NOTE_OFF_ENV:
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|       chan[c.chan].active=false;
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|       chan[c.chan].keyOff=true;
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|       chan[c.chan].keyOn=false;
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|       chan[c.chan].std.release();
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|       break;
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|     case DIV_CMD_ENV_RELEASE:
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|       chan[c.chan].std.release();
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|       break;
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|     case DIV_CMD_INSTRUMENT:
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|       if (chan[c.chan].ins!=c.value || c.value2==1) {
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|         chan[c.chan].insChanged=true;
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|         chan[c.chan].ins=c.value;
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|       }
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|       break;
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|     case DIV_CMD_VOLUME:
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|       if (chan[c.chan].vol!=c.value) {
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|         chan[c.chan].vol=c.value;
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|         if (!chan[c.chan].std.vol.has) {
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|           chan[c.chan].outVol=c.value;
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|           chan[c.chan].resVol=chan[c.chan].outVol;
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|         } else {
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|           chan[c.chan].resVol=chan[c.chan].vol;
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|         }
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|         if (!isMuted[c.chan]) {
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|           chan[c.chan].volumeChanged=true;
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|         }
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|       }
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|       break;
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|     case DIV_CMD_GET_VOLUME:
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|       return chan[c.chan].vol;
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|       break;
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|     case DIV_CMD_PITCH:
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|       chan[c.chan].pitch=c.value;
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|       chan[c.chan].freqChanged=true;
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|       break;
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|     case DIV_CMD_NOTE_PORTA: {
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|       int destFreq=NOTE_FREQUENCY(c.value2);
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|       bool return2=false;
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|       if (destFreq>chan[c.chan].baseFreq) {
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|         chan[c.chan].baseFreq+=c.value;
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|         if (chan[c.chan].baseFreq>=destFreq) {
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|           chan[c.chan].baseFreq=destFreq;
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|           return2=true;
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|         }
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|       } else {
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|         chan[c.chan].baseFreq-=c.value;
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|         if (chan[c.chan].baseFreq<=destFreq) {
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|           chan[c.chan].baseFreq=destFreq;
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|           return2=true;
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|         }
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|       }
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|       chan[c.chan].freqChanged=true;
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|       if (return2) {
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|         chan[c.chan].inPorta=false;
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|         return 2;
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|       }
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|       break;
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|     }
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|     case DIV_CMD_WAVE:
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|       chan[c.chan].wave=c.value;
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|       if (chan[c.chan].waveMode&0x2) {
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|         chan[c.chan].waveUpdated=true;
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|       }
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|       chan[c.chan].keyOn=true;
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|       break;
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|     case DIV_CMD_N163_WAVE_POSITION:
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|       chan[c.chan].wavePos=c.value;
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|       if (chan[c.chan].waveMode&0x2) {
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|         chan[c.chan].waveUpdated=true;
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|       }
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|       chan[c.chan].waveChanged=true;
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|       break;
 | |
|     case DIV_CMD_N163_WAVE_LENGTH:
 | |
|       chan[c.chan].waveLen=c.value&0xfc;
 | |
|       if (chan[c.chan].waveMode&0x2) {
 | |
|         chan[c.chan].waveUpdated=true;
 | |
|       }
 | |
|       chan[c.chan].freqChanged=true;
 | |
|       break;
 | |
|     case DIV_CMD_N163_WAVE_MODE:
 | |
|       chan[c.chan].waveMode=c.value&0x3;
 | |
|       if (chan[c.chan].waveMode&0x3) { // update now
 | |
|         chan[c.chan].waveUpdated=true;
 | |
|         chan[c.chan].waveChanged=true;
 | |
|       }
 | |
|       break;
 | |
|     case DIV_CMD_N163_WAVE_LOAD:
 | |
|       chan[c.chan].loadWave=c.value;
 | |
|       if (chan[c.chan].loadMode&0x2) { // load when every waveform changes
 | |
|         updateWave(c.chan,chan[c.chan].loadWave,chan[c.chan].loadPos,chan[c.chan].loadLen);
 | |
|       }
 | |
|       break;
 | |
|     case DIV_CMD_N163_WAVE_LOADPOS:
 | |
|       chan[c.chan].loadPos=c.value;
 | |
|       break;
 | |
|     case DIV_CMD_N163_WAVE_LOADLEN:
 | |
|       chan[c.chan].loadLen=c.value&0xfc;
 | |
|       break;
 | |
|     case DIV_CMD_N163_WAVE_LOADMODE:
 | |
|       chan[c.chan].loadMode=c.value&0x3;
 | |
|       if (chan[c.chan].loadMode&0x1) { // load now
 | |
|         updateWave(c.chan,chan[c.chan].loadWave,chan[c.chan].loadPos,chan[c.chan].loadLen);
 | |
|       }
 | |
|       break;
 | |
|     case DIV_CMD_N163_GLOBAL_WAVE_LOAD:
 | |
|       loadWave=c.value;
 | |
|       if (loadMode&0x2) { // load when every waveform changes
 | |
|         updateWave(c.chan,loadWave,loadPos,loadLen);
 | |
|       }
 | |
|       break;
 | |
|     case DIV_CMD_N163_GLOBAL_WAVE_LOADPOS:
 | |
|       loadPos=c.value;
 | |
|       break;
 | |
|     case DIV_CMD_N163_GLOBAL_WAVE_LOADLEN:
 | |
|       loadLen=c.value&0xfc;
 | |
|       break;
 | |
|     case DIV_CMD_N163_GLOBAL_WAVE_LOADMODE:
 | |
|       loadMode=c.value&0x3;
 | |
|       if (loadMode&0x3) { // load now
 | |
|         updateWave(c.chan,loadWave,loadPos,loadLen);
 | |
|       }
 | |
|       break;
 | |
|     case DIV_CMD_N163_CHANNEL_LIMIT:
 | |
|       if (chanMax!=(c.value&0x7)) {
 | |
|         chanMax=c.value&0x7;
 | |
|         rWriteMask(0x7f,chanMax<<4,0x70);
 | |
|         forceIns();
 | |
|       }
 | |
|       break;
 | |
|     case DIV_CMD_LEGATO:
 | |
|       chan[c.chan].baseFreq=NOTE_FREQUENCY(c.value+((chan[c.chan].std.arp.will && !chan[c.chan].std.arp.mode)?(chan[c.chan].std.arp.val):(0)));
 | |
|       chan[c.chan].freqChanged=true;
 | |
|       chan[c.chan].note=c.value;
 | |
|       break;
 | |
|     case DIV_CMD_PRE_PORTA:
 | |
|       if (chan[c.chan].active && c.value2) {
 | |
|         if (parent->song.resetMacroOnPorta) {
 | |
|           chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_N163));
 | |
|           chan[c.chan].keyOn=true;
 | |
|         }
 | |
|       }
 | |
|       if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will) chan[c.chan].baseFreq=NOTE_FREQUENCY(chan[c.chan].note);
 | |
|       chan[c.chan].inPorta=c.value;
 | |
|       break;
 | |
|     case DIV_CMD_GET_VOLMAX:
 | |
|       return 15;
 | |
|       break;
 | |
|     case DIV_ALWAYS_SET_VOLUME:
 | |
|       return 1;
 | |
|       break;
 | |
|     default:
 | |
|       break;
 | |
|   }
 | |
|   return 1;
 | |
| }
 | |
| 
 | |
| void DivPlatformN163::muteChannel(int ch, bool mute) {
 | |
|   isMuted[ch]=mute;
 | |
|   chan[ch].volumeChanged=true;
 | |
| }
 | |
| 
 | |
| void DivPlatformN163::forceIns() {
 | |
|   for (int i=0; i<=chanMax; i++) {
 | |
|     chan[i].insChanged=true;
 | |
|     if (chan[i].active) {
 | |
|       chan[i].keyOn=true;
 | |
|       chan[i].freqChanged=true;
 | |
|       chan[i].volumeChanged=true;
 | |
|       chan[i].waveChanged=true;
 | |
|       if (chan[i].waveMode&0x2) {
 | |
|         chan[i].waveUpdated=true;
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| void DivPlatformN163::notifyWaveChange(int wave) {
 | |
|   for (int i=0; i<8; i++) {
 | |
|     if (chan[i].wave==wave) {
 | |
|       if (chan[i].waveMode&0x2) {
 | |
|         chan[i].ws.changeWave1(wave);
 | |
|         chan[i].waveUpdated=true;
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| void DivPlatformN163::notifyInsChange(int ins) {
 | |
|   for (int i=0; i<8; i++) {
 | |
|     if (chan[i].ins==ins) {
 | |
|       chan[i].insChanged=true;
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| void DivPlatformN163::notifyInsDeletion(void* ins) {
 | |
|   for (int i=0; i<8; i++) {
 | |
|     chan[i].std.notifyInsDeletion((DivInstrument*)ins);
 | |
|   }
 | |
| }
 | |
| 
 | |
| void* DivPlatformN163::getChanState(int ch) {
 | |
|   return &chan[ch];
 | |
| }
 | |
| 
 | |
| DivMacroInt* DivPlatformN163::getChanMacroInt(int ch) {
 | |
|   return &chan[ch].std;
 | |
| }
 | |
| 
 | |
| DivDispatchOscBuffer* DivPlatformN163::getOscBuffer(int ch) {
 | |
|   return oscBuf[ch];
 | |
| }
 | |
| 
 | |
| unsigned char* DivPlatformN163::getRegisterPool() {
 | |
|   for (int i=0; i<128; i++) {
 | |
|     regPool[i]=n163.reg(i);
 | |
|   }
 | |
|   return regPool;
 | |
| }
 | |
| 
 | |
| int DivPlatformN163::getRegisterPoolSize() {
 | |
|   return 128;
 | |
| }
 | |
| 
 | |
| void DivPlatformN163::reset() {
 | |
|   while (!writes.empty()) writes.pop();
 | |
|   for (int i=0; i<8; i++) {
 | |
|     chan[i]=DivPlatformN163::Channel();
 | |
|     chan[i].std.setEngine(parent);
 | |
|     chan[i].ws.setEngine(parent);
 | |
|     chan[i].ws.init(NULL,32,15,false);
 | |
|   }
 | |
| 
 | |
|   n163.reset();
 | |
|   memset(regPool,0,128);
 | |
| 
 | |
|   n163.set_disable(false);
 | |
|   n163.set_multiplex(multiplex);
 | |
|   chanMax=initChanMax;
 | |
|   loadWave=-1;
 | |
|   loadPos=0;
 | |
|   loadLen=0;
 | |
|   loadMode=0;
 | |
|   rWrite(0x7f,initChanMax<<4);
 | |
| }
 | |
| 
 | |
| void DivPlatformN163::poke(unsigned int addr, unsigned short val) {
 | |
|   rWrite(addr,val);
 | |
| }
 | |
| 
 | |
| void DivPlatformN163::poke(std::vector<DivRegWrite>& wlist) {
 | |
|   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 | |
| }
 | |
| 
 | |
| void DivPlatformN163::setFlags(const DivConfig& flags) {
 | |
|   switch (flags.getInt("clockSel",0)) {
 | |
|     case 1: // PAL
 | |
|       chipClock=COLOR_PAL*3.0/8.0;
 | |
|       break;
 | |
|     case 2: // Dendy
 | |
|       chipClock=COLOR_PAL*2.0/5.0;
 | |
|       break;
 | |
|     default: // NTSC
 | |
|       chipClock=COLOR_NTSC/2.0;
 | |
|       break;
 | |
|   }
 | |
|   CHECK_CUSTOM_CLOCK;
 | |
|   initChanMax=chanMax=flags.getInt("channels",0)&7;
 | |
|   multiplex=!flags.getBool("multiplex",false); // not accurate in real hardware
 | |
|   rate=chipClock;
 | |
|   rate/=15;
 | |
|   n163.set_multiplex(multiplex);
 | |
|   rWrite(0x7f,initChanMax<<4);
 | |
|   for (int i=0; i<8; i++) {
 | |
|     oscBuf[i]->rate=rate/(initChanMax+1);
 | |
|   }
 | |
| 
 | |
|   // needed to make sure changing channel count won't trigger glitches
 | |
|   reset();
 | |
| }
 | |
| 
 | |
| int DivPlatformN163::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
 | |
|   parent=p;
 | |
|   dumpWrites=false;
 | |
|   skipRegisterWrites=false;
 | |
|   for (int i=0; i<8; i++) {
 | |
|     isMuted[i]=false;
 | |
|     oscBuf[i]=new DivDispatchOscBuffer;
 | |
|   }
 | |
|   setFlags(flags);
 | |
| 
 | |
|   reset();
 | |
| 
 | |
|   return 8;
 | |
| }
 | |
| 
 | |
| void DivPlatformN163::quit() {
 | |
|   for (int i=0; i<8; i++) {
 | |
|     delete oscBuf[i];
 | |
|   }
 | |
| }
 | |
| 
 | |
| DivPlatformN163::~DivPlatformN163() {
 | |
| }
 | 
