380 lines
10 KiB
C++
380 lines
10 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2024 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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#include "upd1771c.h"
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#include "../engine.h"
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#include "../../ta-log.h"
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#include "furIcons.h"
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#include <math.h>
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//#define rWrite(a,v) pendingWrites[a]=v;
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#define rWrite(a,v) if (!skipRegisterWrites) {writes.push(QueuedWrite(a,v)); if (dumpWrites) {addWrite(a,v);} }
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#define CHIP_DIVIDER 32
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const char* regCheatSheetUPD1771c[]={
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NULL
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};
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unsigned char upd1771c_kon[4];
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unsigned char upd1771c_initWrite[4];
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unsigned char upd1771c_initWrite2[4];
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const char** DivPlatformUPD1771c::getRegisterSheet() {
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return regCheatSheetUPD1771c;
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}
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void DivPlatformUPD1771c::acquire(short** buf, size_t len) {
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for (size_t h=0; h<len; h++) {
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/*
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int mask_bits=0;
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for (int i=0; i<4; i++)
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mask_bits |= isMuted[i]?0:8>>i;
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//upd1771c_set_mute_mask(mask_bits);
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*/
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while (!writes.empty()) {
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QueuedWrite w=writes.front();
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upd1771c_write_packet(w.addr&15,w.val);
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regPool[w.addr&0xf]=w.val;
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writes.pop();
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}
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signed short s = upd1771c_sound_stream_update();
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for (int i=0; i<1; i++) {
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oscBuf[i]->data[oscBuf[i]->needle++]=s;
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}
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//printf("tempL: %d tempR: %d\n",tempL,tempR);
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buf[0][h]=s;
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buf[1][h]=s;
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}
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}
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void DivPlatformUPD1771c::tick(bool sysTick) {
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for (int i=0; i<1; 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=VOL_SCALE_LINEAR(chan[i].vol&31,MIN(31,chan[i].std.vol.val),31);
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}
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if (NEW_ARP_STRAT) {
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chan[i].handleArp();
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} else if (chan[i].std.arp.had) {
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if (!chan[i].inPorta) {
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int f=parent->calcArp(chan[i].note,chan[i].std.arp.val);
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chan[i].baseFreq=NOTE_PERIODIC(f);
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}
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chan[i].freqChanged=true;
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}
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if (chan[i].std.wave.had) {
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chan[i].wave=chan[i].std.wave.val&7;
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}
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if (chan[i].std.duty.had) {
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chan[i].duty=chan[i].std.duty.val&1;
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}
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if (chan[i].std.ex1.had) {
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chan[i].pos=chan[i].std.ex1.val&31;
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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].freqChanged || chan[i].keyOn || chan[i].keyOff) {
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//DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_PCE);
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if (i==0) {
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chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER);
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}
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if (chan[i].freqChanged || upd1771c_initWrite[i] || chan[i].keyOn) {
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if (chan[i].duty == 0) {
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rWrite(0,2);
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rWrite(1,(chan[i].wave<<5)|chan[i].pos);
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rWrite(2,MIN(MAX(chan[i].freq,0),255));
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rWrite(3,chan[i].outVol);
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} else if (chan[i].duty == 1) {
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rWrite(0,1);
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rWrite(1,(chan[i].wave<<5));
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rWrite(2,MIN(MAX(chan[i].freq>>7,0),255));
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rWrite(3,chan[i].outVol);
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} else {
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rWrite(0,0);
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}
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upd1771c_initWrite[i]=0;
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}
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if (chan[i].keyOff) {
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rWrite(0,0);
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}
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if (chan[i].keyOn) upd1771c_kon[i]=1;
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if (chan[i].keyOff) upd1771c_kon[i]=0;
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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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if (upd1771c_kon[i]) {
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if (i==0) {
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if (chan[i].duty == 0) {
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rWrite(0,2);
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rWrite(1,(chan[i].wave<<5)|chan[i].pos);
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rWrite(2,MIN(MAX(chan[i].freq,0),255));
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rWrite(3,chan[i].outVol);
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} else if (chan[i].duty == 1) {
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rWrite(0,1);
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rWrite(1,(chan[i].wave<<5));
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rWrite(2,MIN(MAX(chan[i].freq>>7,0),255));
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rWrite(3,chan[i].outVol);
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} else {
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rWrite(0,0);
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}
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}
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} else {
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if (i == 0) {
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rWrite(0,0);
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}
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}
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}
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}
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int DivPlatformUPD1771c::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_UPD1771C);
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if (c.value!=DIV_NOTE_NULL) {
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chan[c.chan].baseFreq=c.chan==3?c.value:NOTE_PERIODIC(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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//chwrite(c.chan,0x04,0x80|chan[c.chan].vol);
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chan[c.chan].macroInit(ins);
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if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
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chan[c.chan].outVol=chan[c.chan].vol;
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}
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chan[c.chan].insChanged=false;
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break;
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}
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case DIV_CMD_NOTE_OFF:
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if (dumpWrites) addWrite(0xffff0002+(c.chan<<8),0);
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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].macroInit(NULL);
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break;
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case DIV_CMD_NOTE_OFF_ENV:
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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].ins=c.value;
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chan[c.chan].insChanged=true;
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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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if (chan[c.chan].active) {
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//chwrite(c.chan,0x04,0x80|chan[c.chan].outVol);
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}
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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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if (chan[c.chan].std.vol.has) {
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return chan[c.chan].vol;
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}
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return chan[c.chan].outVol;
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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_PERIODIC(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_STD_NOISE_MODE:
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chan[c.chan].wave=c.value&7;
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chan[c.chan].duty=c.value>>4&1;
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break;
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case DIV_CMD_N163_WAVE_POSITION:
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chan[c.chan].pos=c.value;
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break;
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case DIV_CMD_LEGATO:
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chan[c.chan].baseFreq=NOTE_PERIODIC(c.value+((HACKY_LEGATO_MESS)?(chan[c.chan].std.arp.val):(0)));
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chan[c.chan].freqChanged=true;
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chan[c.chan].note=c.value;
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break;
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case DIV_CMD_PRE_PORTA:
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if (chan[c.chan].active && c.value2) {
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if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_UPD1771C));
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}
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if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will && !NEW_ARP_STRAT) chan[c.chan].baseFreq=NOTE_PERIODIC(chan[c.chan].note);
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chan[c.chan].inPorta=c.value;
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break;
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case DIV_CMD_GET_VOLMAX:
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return 31;
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break;
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case DIV_CMD_MACRO_OFF:
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chan[c.chan].std.mask(c.value,true);
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break;
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case DIV_CMD_MACRO_ON:
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chan[c.chan].std.mask(c.value,false);
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break;
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case DIV_CMD_MACRO_RESTART:
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chan[c.chan].std.restart(c.value);
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break;
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default:
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break;
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}
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return 1;
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}
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void DivPlatformUPD1771c::muteChannel(int ch, bool mute) {
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isMuted[ch]=mute;
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}
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void DivPlatformUPD1771c::forceIns() {
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for (int i=0; i<4; i++) {
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chan[i].insChanged=true;
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chan[i].freqChanged=true;
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//chwrite(i,0x05,isMuted[i]?0:chan[i].pan);
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}
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}
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void* DivPlatformUPD1771c::getChanState(int ch) {
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return &chan[ch];
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}
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DivMacroInt* DivPlatformUPD1771c::getChanMacroInt(int ch) {
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return &chan[ch].std;
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}
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DivDispatchOscBuffer* DivPlatformUPD1771c::getOscBuffer(int ch) {
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return oscBuf[ch];
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}
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unsigned char* DivPlatformUPD1771c::getRegisterPool() {
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return regPool;
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}
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int DivPlatformUPD1771c::getRegisterPoolSize() {
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return 16;
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}
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void DivPlatformUPD1771c::reset() {
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writes.clear();
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memset(regPool,0,16);
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for (int i=0; i<1; i++) {
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chan[i]=DivPlatformUPD1771c::Channel();
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chan[i].std.setEngine(parent);
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}
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if (dumpWrites) {
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addWrite(0xffffffff,0);
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}
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//upd1771c_sound_reset();
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memset(tempL,0,32*sizeof(int));
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memset(tempR,0,32*sizeof(int));
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memset(upd1771c_kon,0,4*sizeof(unsigned char));
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memset(upd1771c_initWrite,1,4*sizeof(unsigned char));
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memset(upd1771c_initWrite2,1,4*sizeof(unsigned char));
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}
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int DivPlatformUPD1771c::getOutputCount() {
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return 2;
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}
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bool DivPlatformUPD1771c::keyOffAffectsArp(int ch) {
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return true;
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}
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void DivPlatformUPD1771c::notifyInsDeletion(void* ins) {
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for (int i=0; i<1; i++) {
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chan[i].std.notifyInsDeletion((DivInstrument*)ins);
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}
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}
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void DivPlatformUPD1771c::setFlags(const DivConfig& flags) {
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chipClock=6000000;
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CHECK_CUSTOM_CLOCK;
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rate=chipClock/32;
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for (int i=0; i<1; i++) {
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oscBuf[i]->rate=rate;
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}
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upd1771c_sound_set_clock((unsigned int)chipClock,8);
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}
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void DivPlatformUPD1771c::poke(unsigned int addr, unsigned short val) {
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rWrite(addr,val);
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}
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void DivPlatformUPD1771c::poke(std::vector<DivRegWrite>& wlist) {
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for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
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}
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int DivPlatformUPD1771c::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
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parent=p;
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dumpWrites=false;
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skipRegisterWrites=false;
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for (int i=0; i<1; i++) {
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isMuted[i]=false;
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oscBuf[i]=new DivDispatchOscBuffer;
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}
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setFlags(flags);
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reset();
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return 1;
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}
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void DivPlatformUPD1771c::quit() {
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for (int i=0; i<1; i++) {
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delete oscBuf[i];
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}
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}
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DivPlatformUPD1771c::~DivPlatformUPD1771c() {
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}
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