mirror of
https://github.com/tildearrow/furnace.git
synced 2024-11-27 15:03:01 +00:00
tildearrow
GitHub
commit
7a04c2685c
19 changed files with 877 additions and 4 deletions
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@ -455,6 +455,8 @@ src/engine/platform/sound/snes/SPC_DSP.cpp
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src/engine/platform/sound/ga20/iremga20.cpp
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src/engine/platform/sound/sm8521.c
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src/engine/platform/oplAInterface.cpp
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src/engine/platform/ym2608Interface.cpp
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src/engine/platform/ym2610Interface.cpp
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@ -539,6 +541,7 @@ src/engine/platform/rf5c68.cpp
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src/engine/platform/snes.cpp
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src/engine/platform/k007232.cpp
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src/engine/platform/ga20.cpp
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src/engine/platform/sm8521.cpp
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src/engine/platform/pcmdac.cpp
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src/engine/platform/dummy.cpp
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)
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@ -284,6 +284,7 @@ size | description
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| - 0xc5: YM2610B CSM - 20 channels
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| - 0xc6: K007232 - 2 channels
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| - 0xc7: GA20 - 4 channels
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| - 0xc8: SM8521 - 3 channels
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| - 0xde: YM2610B extended - 19 channels
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| - 0xe0: QSound - 19 channels
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| - 0xfc: Pong - 1 channel
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@ -115,6 +115,7 @@ the following instrument types are available:
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- 45: K007232
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- 46: GA20
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- 47: Pokémon Mini
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- 48: SM8521
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the following feature codes are recognized:
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@ -75,6 +75,7 @@
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#include "platform/vb.h"
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#include "platform/k007232.h"
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#include "platform/ga20.h"
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#include "platform/sm8521.h"
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#include "platform/pcmdac.h"
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#include "platform/dummy.h"
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#include "../ta-log.h"
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@ -489,6 +490,9 @@ void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, do
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case DIV_SYSTEM_GA20:
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dispatch=new DivPlatformGA20;
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break;
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case DIV_SYSTEM_SM8521:
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dispatch=new DivPlatformSM8521;
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break;
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case DIV_SYSTEM_PCM_DAC:
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dispatch=new DivPlatformPCMDAC;
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break;
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@ -924,6 +924,10 @@ void DivInstrument::putInsData2(SafeWriter* w, bool fui, const DivSong* song) {
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break;
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case DIV_INS_POKEMINI:
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break;
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case DIV_INS_SM8521:
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checkForWL=true;
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if (ws.enabled) featureWS=true;
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break;
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case DIV_INS_MAX:
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break;
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@ -78,6 +78,7 @@ enum DivInstrumentType: unsigned short {
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DIV_INS_K007232=45,
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DIV_INS_GA20=46,
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DIV_INS_POKEMINI=47,
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DIV_INS_SM8521=48,
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DIV_INS_MAX,
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DIV_INS_NULL
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};
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402
src/engine/platform/sm8521.cpp
Normal file
402
src/engine/platform/sm8521.cpp
Normal file
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@ -0,0 +1,402 @@
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/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2023 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 "sm8521.h"
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#include "../engine.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.emplace(a,v); if (dumpWrites) {addWrite(a,v);} }
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#define CHIP_DIVIDER 64
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const char* regCheatSheetSM8521[]={
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"SGC", "40",
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"SG0L", "42",
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"SG1L", "44",
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"SG0TL", "46",
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"SG0TH", "47",
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"SG1TL", "48",
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"SG1TH", "49",
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"SG2L", "4A",
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"SG2TL", "4C",
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"SG2TH", "4D",
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"SGDA", "4E",
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"SG0Wn", "60+n",
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"SG1Wn", "70+n",
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NULL
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};
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const char** DivPlatformSM8521::getRegisterSheet() {
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return regCheatSheetSM8521;
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}
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void DivPlatformSM8521::acquire(short** buf, size_t len) {
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while (!writes.empty()) {
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QueuedWrite w=writes.front();
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sm8521_write(&sm8521,w.addr,w.val);
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regPool[w.addr&0xff]=w.val;
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writes.pop();
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}
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for (size_t h=0; h<len; h++) {
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sm8521_sound_tick(&sm8521,8);
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buf[0][h]=sm8521.out<<6;
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for (int i=0; i<2; i++) {
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oscBuf[i]->data[oscBuf[i]->needle++]=sm8521.sg[i].base.out<<6;
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}
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oscBuf[2]->data[oscBuf[2]->needle++]=sm8521.noise.base.out<<6;
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}
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}
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void DivPlatformSM8521::updateWave(int ch) {
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if (ch<2) {
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const unsigned char temp=regPool[0x40];
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rWrite(0x40,temp&~(1<<ch));
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for (int i=0; i<16; i++) {
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int nibble1=(chan[ch].ws.output[((i<<1)+chan[ch].antiClickWavePos-1)&31]-8)&0xf;
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int nibble2=(chan[ch].ws.output[((1+(i<<1))+chan[ch].antiClickWavePos-1)&31]-8)&0xf;
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rWrite(0x60+i+(ch*16),(nibble2<<4)|nibble1);
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}
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if (chan[ch].active) {
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rWrite(0x40,temp|(1<<ch));
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}
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chan[ch].antiClickWavePos&=31;
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}
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}
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void DivPlatformSM8521::tick(bool sysTick) {
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unsigned char keyState=0x80;
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for (int i=0; i<3; i++) {
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// anti-click
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if (antiClickEnabled && sysTick && chan[i].freq>0) {
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chan[i].antiClickPeriodCount+=(chipClock/MAX(parent->getCurHz(),1.0f));
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chan[i].antiClickWavePos+=chan[i].antiClickPeriodCount/chan[i].freq;
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chan[i].antiClickPeriodCount%=chan[i].freq;
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}
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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=((chan[i].vol&31)*MIN(31,chan[i].std.vol.val))>>5;
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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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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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chan[i].baseFreq=NOTE_PERIODIC(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].volumeChanged) {
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if (isMuted[i]) {
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rWrite(volMap[i],0);
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} else {
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rWrite(volMap[i],chan[i].outVol&0x1f);
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}
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chan[i].volumeChanged=false;
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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 || chan[i].ws.activeChanged()) {
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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].keyOff) chan[i].keyOn=true;
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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.phaseReset.had && chan[i].std.phaseReset.val==1) {
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chan[i].antiClickWavePos=0;
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chan[i].antiClickPeriodCount=0;
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}
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if (chan[i].active) {
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if (chan[i].ws.tick() || (chan[i].std.phaseReset.had && chan[i].std.phaseReset.val==1)) {
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updateWave(i);
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}
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}
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if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
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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)-1;
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if (chan[i].freq<1) chan[i].freq=1;
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if (chan[i].freq>4095) chan[i].freq=4095;
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rWrite(freqMap[i][0],chan[i].freq>>8);
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rWrite(freqMap[i][1],chan[i].freq&0xff);
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if (chan[i].keyOn) {
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}
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if (chan[i].keyOff) {
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}
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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 (!isMuted[i] && chan[i].active) {
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keyState|=(1<<i);
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} else {
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keyState&=~(1<<i);
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}
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}
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if (regPool[0x40]!=keyState) {
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rWrite(0x40,keyState);
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regPool[0x40]=keyState;
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}
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}
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int DivPlatformSM8521::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_PCE);
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if (c.value!=DIV_NOTE_NULL) {
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chan[c.chan].baseFreq=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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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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if (chan[c.chan].wave<0) {
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chan[c.chan].wave=0;
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chan[c.chan].ws.changeWave1(chan[c.chan].wave);
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}
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chan[c.chan].ws.init(ins,32,15,chan[c.chan].insChanged);
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chan[c.chan].insChanged=false;
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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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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].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 (!isMuted[c.chan]) {
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chan[c.chan].volumeChanged=true;
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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_WAVE:
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chan[c.chan].wave=c.value;
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chan[c.chan].ws.changeWave1(chan[c.chan].wave);
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chan[c.chan].keyOn=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*((parent->song.linearPitch==2)?1:8);
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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*((parent->song.linearPitch==2)?1:8);
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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_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_PCE));
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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_ALWAYS_SET_VOLUME:
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return 1;
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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 DivPlatformSM8521::muteChannel(int ch, bool mute) {
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isMuted[ch]=mute;
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chan[ch].volumeChanged=true;
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if (mute) {
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rWrite(0x40,regPool[0x40]&~(1<<ch));
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} else if (chan[ch].active) {
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rWrite(0x40,regPool[0x40]|0x80|(1<<ch));
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}
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}
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void DivPlatformSM8521::forceIns() {
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for (int i=0; i<3; i++) {
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chan[i].insChanged=true;
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chan[i].freqChanged=true;
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updateWave(i);
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}
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}
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void* DivPlatformSM8521::getChanState(int ch) {
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return &chan[ch];
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}
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DivMacroInt* DivPlatformSM8521::getChanMacroInt(int ch) {
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return &chan[ch].std;
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}
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DivDispatchOscBuffer* DivPlatformSM8521::getOscBuffer(int ch) {
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return oscBuf[ch];
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}
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unsigned char* DivPlatformSM8521::getRegisterPool() {
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return regPool;
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}
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int DivPlatformSM8521::getRegisterPoolSize() {
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return 256;
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}
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void DivPlatformSM8521::reset() {
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while (!writes.empty()) writes.pop();
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memset(regPool,0,256);
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for (int i=0; i<3; i++) {
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chan[i]=DivPlatformSM8521::Channel();
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chan[i].std.setEngine(parent);
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chan[i].ws.setEngine(parent);
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chan[i].ws.init(NULL,32,15,false);
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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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sm8521_reset(&sm8521);
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rWrite(0x40,0x80); // initialize SGC
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}
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int DivPlatformSM8521::getOutputCount() {
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return 1;
|
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}
|
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bool DivPlatformSM8521::keyOffAffectsArp(int ch) {
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return true;
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}
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void DivPlatformSM8521::notifyWaveChange(int wave) {
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for (int i=0; i<2; i++) {
|
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if (chan[i].wave==wave) {
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chan[i].ws.changeWave1(wave);
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updateWave(i);
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}
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||||
}
|
||||
}
|
||||
|
||||
void DivPlatformSM8521::notifyInsDeletion(void* ins) {
|
||||
for (int i=0; i<3; i++) {
|
||||
chan[i].std.notifyInsDeletion((DivInstrument*)ins);
|
||||
}
|
||||
}
|
||||
|
||||
void DivPlatformSM8521::setFlags(const DivConfig& flags) {
|
||||
antiClickEnabled=!flags.getBool("noAntiClick",false);
|
||||
chipClock=11059200;
|
||||
CHECK_CUSTOM_CLOCK;
|
||||
rate=chipClock/4/8; // CKIN -> fCLK(/2) -> Function blocks (/2)
|
||||
for (int i=0; i<3; i++) {
|
||||
oscBuf[i]->rate=rate;
|
||||
}
|
||||
}
|
||||
|
||||
void DivPlatformSM8521::poke(unsigned int addr, unsigned short val) {
|
||||
rWrite(addr,val);
|
||||
}
|
||||
|
||||
void DivPlatformSM8521::poke(std::vector<DivRegWrite>& wlist) {
|
||||
for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
|
||||
}
|
||||
|
||||
int DivPlatformSM8521::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
|
||||
parent=p;
|
||||
dumpWrites=false;
|
||||
skipRegisterWrites=false;
|
||||
for (int i=0; i<3; i++) {
|
||||
isMuted[i]=false;
|
||||
oscBuf[i]=new DivDispatchOscBuffer;
|
||||
}
|
||||
setFlags(flags);
|
||||
reset();
|
||||
return 6;
|
||||
}
|
||||
|
||||
void DivPlatformSM8521::quit() {
|
||||
for (int i=0; i<3; i++) {
|
||||
delete oscBuf[i];
|
||||
}
|
||||
}
|
||||
|
||||
DivPlatformSM8521::~DivPlatformSM8521() {
|
||||
}
|
||||
86
src/engine/platform/sm8521.h
Normal file
86
src/engine/platform/sm8521.h
Normal file
|
|
@ -0,0 +1,86 @@
|
|||
/**
|
||||
* Furnace Tracker - multi-system chiptune tracker
|
||||
* Copyright (C) 2021-2023 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 _SM8521_H
|
||||
#define _SM8521_H
|
||||
|
||||
#include "../dispatch.h"
|
||||
#include <queue>
|
||||
#include "../waveSynth.h"
|
||||
#include "sound/sm8521.h"
|
||||
|
||||
class DivPlatformSM8521: public DivDispatch {
|
||||
const unsigned char volMap[3]={0x42,0x44,0x4a};
|
||||
|
||||
const unsigned char freqMap[3][2]={{0x46,0x47},{0x48,0x49},{0x4c,0x4d}};
|
||||
|
||||
struct Channel: public SharedChannel<signed char> {
|
||||
int antiClickPeriodCount, antiClickWavePos;
|
||||
signed short wave;
|
||||
bool volumeChanged;
|
||||
DivWaveSynth ws;
|
||||
Channel():
|
||||
SharedChannel<signed char>(31),
|
||||
antiClickPeriodCount(0),
|
||||
antiClickWavePos(0),
|
||||
wave(-1),
|
||||
volumeChanged(false) {}
|
||||
};
|
||||
Channel chan[3];
|
||||
DivDispatchOscBuffer* oscBuf[3];
|
||||
bool isMuted[3];
|
||||
struct QueuedWrite {
|
||||
unsigned short addr;
|
||||
unsigned char val;
|
||||
QueuedWrite(unsigned short a, unsigned char v): addr(a), val(v) {}
|
||||
};
|
||||
std::queue<QueuedWrite> writes;
|
||||
|
||||
bool antiClickEnabled;
|
||||
struct sm8521_t sm8521;
|
||||
unsigned char regPool[256];
|
||||
void updateWave(int ch);
|
||||
friend void putDispatchChip(void*,int);
|
||||
friend void putDispatchChan(void*,int,int);
|
||||
public:
|
||||
void acquire(short** buf, size_t len);
|
||||
int dispatch(DivCommand c);
|
||||
void* getChanState(int chan);
|
||||
DivMacroInt* getChanMacroInt(int ch);
|
||||
DivDispatchOscBuffer* getOscBuffer(int chan);
|
||||
unsigned char* getRegisterPool();
|
||||
int getRegisterPoolSize();
|
||||
void reset();
|
||||
void forceIns();
|
||||
void tick(bool sysTick=true);
|
||||
void muteChannel(int ch, bool mute);
|
||||
int getOutputCount();
|
||||
bool keyOffAffectsArp(int ch);
|
||||
void setFlags(const DivConfig& flags);
|
||||
void notifyWaveChange(int wave);
|
||||
void notifyInsDeletion(void* ins);
|
||||
void poke(unsigned int addr, unsigned short val);
|
||||
void poke(std::vector<DivRegWrite>& wlist);
|
||||
const char** getRegisterSheet();
|
||||
int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
|
||||
void quit();
|
||||
~DivPlatformSM8521();
|
||||
};
|
||||
|
||||
#endif
|
||||
235
src/engine/platform/sound/sm8521.c
Normal file
235
src/engine/platform/sound/sm8521.c
Normal file
|
|
@ -0,0 +1,235 @@
|
|||
/*
|
||||
|
||||
============================================================================
|
||||
|
||||
SM8521 sound emulator
|
||||
by cam900
|
||||
|
||||
This file is licensed under zlib license.
|
||||
|
||||
============================================================================
|
||||
|
||||
zlib License
|
||||
|
||||
(C) 2023-present cam900 and contributors
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
|
||||
============================================================================
|
||||
|
||||
TODO:
|
||||
- needs hardware test
|
||||
|
||||
*/
|
||||
|
||||
#include "sm8521.h"
|
||||
#include <stdlib.h>
|
||||
|
||||
enum sm8521_sgc
|
||||
{
|
||||
SM8521_SGC_SONDOUT = (1 << 7),
|
||||
SM8521_SGC_DIROUT = (1 << 3),
|
||||
SM8521_SGC_SG2OUT = (1 << 2),
|
||||
SM8521_SGC_SG1OUT = (1 << 1),
|
||||
SM8521_SGC_SG0OUT = (1 << 0)
|
||||
};
|
||||
|
||||
void sm8521_sg_wave_tick(struct sm8521_wave_t *sg, const int cycle)
|
||||
{
|
||||
sg->base.counter += cycle;
|
||||
while (sg->base.counter >= (sg->base.t + 1))
|
||||
{
|
||||
sg->addr++;
|
||||
sg->base.counter -= (sg->base.t + 1);
|
||||
}
|
||||
int wave = (sg->wave[(sg->addr >> 1) & 0xf] >> ((sg->addr & 1) << 2)) & 0xf;
|
||||
if (wave & 0x8)
|
||||
{
|
||||
wave = -(0x8 - (wave & 0x7));
|
||||
}
|
||||
sg->base.out = (wave * sg->base.level) >> 1; // scale out to 8bit
|
||||
}
|
||||
|
||||
void sm8521_noise_tick(struct sm8521_noise_t *noise, const int cycle)
|
||||
{
|
||||
noise->base.counter += cycle;
|
||||
while (noise->base.counter >= (noise->base.t + 1))
|
||||
{
|
||||
noise->lfsr = rand() & 0x1; // unknown algorithm
|
||||
noise->base.counter -= (noise->base.t + 1);
|
||||
}
|
||||
noise->base.out = (((noise->lfsr & 0x1) ? 7 : -8) * noise->base.level) >> 1; // scale out to 8bit
|
||||
}
|
||||
|
||||
void sm8521_sound_tick(struct sm8521_t *sm8521, const int cycle)
|
||||
{
|
||||
int out = 0;
|
||||
if (sm8521->sgc & SM8521_SGC_SONDOUT)
|
||||
{
|
||||
if (sm8521->sgc & SM8521_SGC_DIROUT)
|
||||
{
|
||||
out = sm8521->sgda - 0x80;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (sm8521->sgc & SM8521_SGC_SG0OUT)
|
||||
{
|
||||
sm8521_sg_wave_tick(&sm8521->sg[0], cycle);
|
||||
out += sm8521->sg[0].base.out;
|
||||
}
|
||||
if (sm8521->sgc & SM8521_SGC_SG1OUT)
|
||||
{
|
||||
sm8521_sg_wave_tick(&sm8521->sg[1], cycle);
|
||||
out += sm8521->sg[1].base.out;
|
||||
}
|
||||
if (sm8521->sgc & SM8521_SGC_SG2OUT)
|
||||
{
|
||||
sm8521_noise_tick(&sm8521->noise, cycle);
|
||||
out += sm8521->noise.base.out;
|
||||
}
|
||||
out = (out < -0x80) ? -0x80 : ((out > 0x7f) ? 0x7f : out); // clamp
|
||||
}
|
||||
}
|
||||
sm8521->out = out;
|
||||
}
|
||||
|
||||
void sm8521_reset(struct sm8521_t *sm8521)
|
||||
{
|
||||
for (int i = 0; i < 2; i++)
|
||||
{
|
||||
sm8521->sg[i].base.t = 0;
|
||||
sm8521->sg[i].base.level = 0;
|
||||
sm8521->sg[i].base.out = 0;
|
||||
sm8521->sg[i].base.counter = 0;
|
||||
sm8521->sg[i].addr = 0;
|
||||
for (int j = 0; j < 16; j++)
|
||||
{
|
||||
sm8521->sg[i].wave[j] = 0;
|
||||
}
|
||||
}
|
||||
sm8521->noise.base.t = 0;
|
||||
sm8521->noise.base.level = 0;
|
||||
sm8521->noise.base.out = 0;
|
||||
sm8521->noise.base.counter = 0;
|
||||
sm8521->noise.lfsr = 0;
|
||||
sm8521->out = 0;
|
||||
sm8521->sgda = 0;
|
||||
sm8521->sgc = 0;
|
||||
}
|
||||
|
||||
unsigned char sm8521_read(struct sm8521_t *sm8521, const unsigned char a)
|
||||
{
|
||||
if ((a & 0xe0) == 0x60)
|
||||
{
|
||||
if ((a & 0x10) && (!(sm8521->sgc & SM8521_SGC_SG1OUT))) // 0x70-0x7f SG1W0-15
|
||||
{
|
||||
return sm8521->sg[1].wave[a & 0xf];
|
||||
}
|
||||
else if ((!(a & 0x10)) && (!(sm8521->sgc & SM8521_SGC_SG0OUT))) // 0x60-0x6f SG0W0-15
|
||||
{
|
||||
return sm8521->sg[0].wave[a & 0xf];
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
switch (a)
|
||||
{
|
||||
case 0x40: // SGC
|
||||
return sm8521->sgc;
|
||||
break;
|
||||
case 0x42: // SG0L
|
||||
return sm8521->sg[0].base.level & 0x1f;
|
||||
break;
|
||||
case 0x44: // SG1L
|
||||
return sm8521->sg[1].base.level & 0x1f;
|
||||
break;
|
||||
case 0x46: // SG0TH
|
||||
return (sm8521->sg[0].base.t >> 8) & 0xf;
|
||||
break;
|
||||
case 0x47: // SG0TL
|
||||
return sm8521->sg[0].base.t & 0xff;
|
||||
break;
|
||||
case 0x48: // SG1TH
|
||||
return (sm8521->sg[1].base.t >> 8) & 0xf;
|
||||
break;
|
||||
case 0x49: // SG1TL
|
||||
return sm8521->sg[1].base.t & 0x0ff;
|
||||
break;
|
||||
case 0x4a: // SG2L
|
||||
return sm8521->noise.base.level & 0x1f;
|
||||
break;
|
||||
case 0x4c: // SG2TH
|
||||
return (sm8521->noise.base.t >> 8) & 0xf;
|
||||
break;
|
||||
case 0x4d: // SG2TL
|
||||
return sm8521->noise.base.t & 0xff;
|
||||
break;
|
||||
default:
|
||||
return 0;
|
||||
break;
|
||||
}
|
||||
}
|
||||
void sm8521_write(struct sm8521_t *sm8521, const unsigned char a, const unsigned char d)
|
||||
{
|
||||
if ((a & 0xe0) == 0x60)
|
||||
{
|
||||
if ((a & 0x10) && (!(sm8521->sgc & SM8521_SGC_SG1OUT))) // 0x70-0x7f SG1W0-15
|
||||
{
|
||||
sm8521->sg[1].wave[a & 0xf] = d;
|
||||
}
|
||||
else if ((!(a & 0x10)) && (!(sm8521->sgc & SM8521_SGC_SG0OUT))) // 0x60-0x6f SG0W0-15
|
||||
{
|
||||
sm8521->sg[0].wave[a & 0xf] = d;
|
||||
}
|
||||
return;
|
||||
}
|
||||
switch (a)
|
||||
{
|
||||
case 0x40: // SGC
|
||||
sm8521->sgc = d;
|
||||
break;
|
||||
case 0x42: // SG0L
|
||||
sm8521->sg[0].base.level = d & 0x1f;
|
||||
break;
|
||||
case 0x44: // SG1L
|
||||
sm8521->sg[1].base.level = d & 0x1f;
|
||||
break;
|
||||
case 0x46: // SG0TH
|
||||
sm8521->sg[0].base.t = (sm8521->sg[0].base.t & 0x0ff) | ((d << 8) & 0xf00);
|
||||
break;
|
||||
case 0x47: // SG0TL
|
||||
sm8521->sg[0].base.t = (sm8521->sg[0].base.t & 0xf00) | (d & 0x0ff);
|
||||
break;
|
||||
case 0x48: // SG1TH
|
||||
sm8521->sg[1].base.t = (sm8521->sg[1].base.t & 0x0ff) | ((d << 8) & 0xf00);
|
||||
break;
|
||||
case 0x49: // SG1TL
|
||||
sm8521->sg[1].base.t = (sm8521->sg[1].base.t & 0xf00) | (d & 0x0ff);
|
||||
break;
|
||||
case 0x4a: // SG2L
|
||||
sm8521->noise.base.level = d & 0x1f;
|
||||
break;
|
||||
case 0x4c: // SG2TH
|
||||
sm8521->noise.base.t = (sm8521->noise.base.t & 0x0ff) | ((d << 8) & 0xf00);
|
||||
break;
|
||||
case 0x4d: // SG2TL
|
||||
sm8521->noise.base.t = (sm8521->noise.base.t & 0xf00) | (d & 0x0ff);
|
||||
break;
|
||||
case 0x4e: // SGDA
|
||||
sm8521->sgda = d;
|
||||
break;
|
||||
}
|
||||
}
|
||||
92
src/engine/platform/sound/sm8521.h
Normal file
92
src/engine/platform/sound/sm8521.h
Normal file
|
|
@ -0,0 +1,92 @@
|
|||
/*
|
||||
|
||||
============================================================================
|
||||
|
||||
SM8521 sound emulator
|
||||
by cam900
|
||||
|
||||
This file is licensed under zlib license.
|
||||
|
||||
============================================================================
|
||||
|
||||
zlib License
|
||||
|
||||
(C) 2023-present cam900 and contributors
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
|
||||
============================================================================
|
||||
|
||||
TODO:
|
||||
- needs hardware test
|
||||
|
||||
*/
|
||||
|
||||
#ifndef _SM8521_EMU_H
|
||||
#define _SM8521_EMU_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
struct sm8521_sg_t
|
||||
{
|
||||
unsigned short t; // Time constant register
|
||||
unsigned char level; // Output level control register
|
||||
signed short out; // output
|
||||
int counter; // clock counter
|
||||
};
|
||||
|
||||
struct sm8521_wave_t
|
||||
{
|
||||
struct sm8521_sg_t base;
|
||||
unsigned char addr; // waveform address
|
||||
unsigned char wave[16]; // 4 bit waveform (32 nybbles)
|
||||
};
|
||||
|
||||
struct sm8521_noise_t
|
||||
{
|
||||
struct sm8521_sg_t base;
|
||||
unsigned int lfsr; // LFSR
|
||||
};
|
||||
|
||||
struct sm8521_t
|
||||
{
|
||||
struct sm8521_wave_t sg[2];
|
||||
struct sm8521_noise_t noise;
|
||||
signed short out; // output
|
||||
signed char sgda; // D/A direct output register (write only)
|
||||
unsigned char sgc; // Control register
|
||||
};
|
||||
|
||||
void sm8521_sg_wave_tick(struct sm8521_wave_t *sg, const int cycle);
|
||||
|
||||
void sm8521_noise_tick(struct sm8521_noise_t *noise, const int cycle);
|
||||
|
||||
void sm8521_sound_tick(struct sm8521_t *sm8521, const int cycle);
|
||||
|
||||
void sm8521_reset(struct sm8521_t *sm8521);
|
||||
|
||||
unsigned char sm8521_read(struct sm8521_t *sm8521, const unsigned char a);
|
||||
void sm8521_write(struct sm8521_t *sm8521, const unsigned char a, const unsigned char d);
|
||||
|
||||
#ifdef __cplusplus
|
||||
} // extern "C"
|
||||
#endif
|
||||
|
||||
#endif // _SM8521_EMU_H
|
||||
|
|
@ -124,7 +124,8 @@ enum DivSystem {
|
|||
DIV_SYSTEM_YM2610_CSM,
|
||||
DIV_SYSTEM_YM2610B_CSM,
|
||||
DIV_SYSTEM_YM2203_CSM,
|
||||
DIV_SYSTEM_YM2608_CSM
|
||||
DIV_SYSTEM_YM2608_CSM,
|
||||
DIV_SYSTEM_SM8521
|
||||
};
|
||||
|
||||
struct DivGroovePattern {
|
||||
|
|
|
|||
|
|
@ -1822,6 +1822,17 @@ void DivEngine::registerSystems() {
|
|||
{DIV_INS_AMIGA, DIV_INS_AMIGA, DIV_INS_AMIGA, DIV_INS_AMIGA}
|
||||
);
|
||||
|
||||
sysDefs[DIV_SYSTEM_SM8521]=new DivSysDef(
|
||||
"Sharp SM8521", NULL, 0xc8, 0, 3, false, true, 0, false, 0,
|
||||
"a SoC with wavetable sound hardware.",
|
||||
{"Channel 1", "Channel 2", "Noise"},
|
||||
{"CH1", "CH2", "NS"},
|
||||
{DIV_CH_WAVE, DIV_CH_WAVE, DIV_CH_NOISE},
|
||||
{DIV_INS_SM8521, DIV_INS_SM8521, DIV_INS_SM8521},
|
||||
{},
|
||||
namcoEffectHandlerMap
|
||||
);
|
||||
|
||||
sysDefs[DIV_SYSTEM_DUMMY]=new DivSysDef(
|
||||
"Dummy System", NULL, 0xfd, 0, 8, false, true, 0, false, 0,
|
||||
"this is a system designed for testing purposes.",
|
||||
|
|
|
|||
|
|
@ -430,6 +430,10 @@ void FurnaceGUI::drawInsList(bool asChild) {
|
|||
ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_INSTR_POKEMINI]);
|
||||
name=fmt::sprintf(ICON_FA_BAR_CHART "##_INS%d",i);
|
||||
break;
|
||||
case DIV_INS_SM8521:
|
||||
ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_INSTR_SM8521]);
|
||||
name=fmt::sprintf(ICON_FA_PIE_CHART "##_INS%d",i);
|
||||
break;
|
||||
default:
|
||||
ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_INSTR_UNKNOWN]);
|
||||
name=fmt::sprintf(ICON_FA_QUESTION "##_INS%d",i);
|
||||
|
|
|
|||
|
|
@ -189,6 +189,7 @@ enum FurnaceGUIColors {
|
|||
GUI_COLOR_INSTR_K007232,
|
||||
GUI_COLOR_INSTR_GA20,
|
||||
GUI_COLOR_INSTR_POKEMINI,
|
||||
GUI_COLOR_INSTR_SM8521,
|
||||
GUI_COLOR_INSTR_UNKNOWN,
|
||||
|
||||
GUI_COLOR_CHANNEL_BG,
|
||||
|
|
|
|||
|
|
@ -129,6 +129,7 @@ const char* insTypes[DIV_INS_MAX+1]={
|
|||
"K007232",
|
||||
"GA20",
|
||||
"Pokémon Mini",
|
||||
"SM8521",
|
||||
NULL
|
||||
};
|
||||
|
||||
|
|
@ -818,6 +819,7 @@ const FurnaceGUIColorDef guiColors[GUI_COLOR_MAX]={
|
|||
D(GUI_COLOR_INSTR_K007232,"",ImVec4(1.0f,0.8f,0.1f,1.0f)),
|
||||
D(GUI_COLOR_INSTR_GA20,"",ImVec4(0.1f,1.0f,0.4f,1.0f)),
|
||||
D(GUI_COLOR_INSTR_POKEMINI,"",ImVec4(1.0f,1.0f,0.3f,1.0f)),
|
||||
D(GUI_COLOR_INSTR_SM8521,"",ImVec4(1.0f,1.0f,0.0f,1.0f)),
|
||||
D(GUI_COLOR_INSTR_UNKNOWN,"",ImVec4(0.3f,0.3f,0.3f,1.0f)),
|
||||
|
||||
D(GUI_COLOR_CHANNEL_BG,"",ImVec4(0.4f,0.6f,0.8f,1.0f)),
|
||||
|
|
@ -998,6 +1000,7 @@ const int availableSystems[]={
|
|||
DIV_SYSTEM_MSM5232,
|
||||
DIV_SYSTEM_K007232,
|
||||
DIV_SYSTEM_GA20,
|
||||
DIV_SYSTEM_SM8521,
|
||||
DIV_SYSTEM_PCM_DAC,
|
||||
DIV_SYSTEM_PONG,
|
||||
0 // don't remove this last one!
|
||||
|
|
@ -1084,6 +1087,7 @@ const int chipsSpecial[]={
|
|||
DIV_SYSTEM_PET,
|
||||
DIV_SYSTEM_VRC6,
|
||||
DIV_SYSTEM_MMC5,
|
||||
DIV_SYSTEM_SM8521,
|
||||
0 // don't remove this last one!
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -4762,11 +4762,13 @@ void FurnaceGUI::drawInsEdit() {
|
|||
(ins->type==DIV_INS_VBOY) ||
|
||||
ins->type==DIV_INS_SCC ||
|
||||
ins->type==DIV_INS_SNES ||
|
||||
ins->type==DIV_INS_NAMCO) {
|
||||
ins->type==DIV_INS_NAMCO ||
|
||||
ins->type==DIV_INS_SM8521) {
|
||||
if (ImGui::BeginTabItem("Wavetable")) {
|
||||
switch (ins->type) {
|
||||
case DIV_INS_GB:
|
||||
case DIV_INS_NAMCO:
|
||||
case DIV_INS_SM8521:
|
||||
case DIV_INS_SWAN:
|
||||
wavePreviewLen=32;
|
||||
wavePreviewHeight=15;
|
||||
|
|
@ -4968,7 +4970,7 @@ void FurnaceGUI::drawInsEdit() {
|
|||
}
|
||||
}
|
||||
}
|
||||
if (ins->type==DIV_INS_PCE || ins->type==DIV_INS_AY8930) {
|
||||
if (ins->type==DIV_INS_PCE || ins->type==DIV_INS_AY8930 || ins->type==DIV_INS_SM8521) {
|
||||
volMax=31;
|
||||
}
|
||||
if (ins->type==DIV_INS_OPL || ins->type==DIV_INS_OPL_DRUMS || ins->type==DIV_INS_VERA || ins->type==DIV_INS_VRC6_SAW) {
|
||||
|
|
@ -5067,7 +5069,8 @@ void FurnaceGUI::drawInsEdit() {
|
|||
}
|
||||
if (ins->type==DIV_INS_TIA || ins->type==DIV_INS_AMIGA || ins->type==DIV_INS_SCC ||
|
||||
ins->type==DIV_INS_PET || ins->type==DIV_INS_VIC || ins->type==DIV_INS_SEGAPCM ||
|
||||
ins->type==DIV_INS_FM || ins->type==DIV_INS_K007232 || ins->type==DIV_INS_GA20) {
|
||||
ins->type==DIV_INS_FM || ins->type==DIV_INS_K007232 || ins->type==DIV_INS_GA20 ||
|
||||
ins->type==DIV_INS_SM8521) {
|
||||
dutyMax=0;
|
||||
}
|
||||
if (ins->type==DIV_INS_VBOY) {
|
||||
|
|
|
|||
|
|
@ -2571,6 +2571,11 @@ void FurnaceGUI::initSystemPresets() {
|
|||
CH(DIV_SYSTEM_SFX_BEEPER, 1.0f, 0, "")
|
||||
}
|
||||
);
|
||||
ENTRY(
|
||||
"Sharp SM8521", {
|
||||
CH(DIV_SYSTEM_SM8521, 1.0f, 0, "")
|
||||
}
|
||||
);
|
||||
if (settings.hiddenSystems) {
|
||||
ENTRY(
|
||||
"Dummy System", {
|
||||
|
|
|
|||
|
|
@ -1907,6 +1907,7 @@ void FurnaceGUI::drawSettings() {
|
|||
UI_COLOR_CONFIG(GUI_COLOR_INSTR_K007232,"K007232");
|
||||
UI_COLOR_CONFIG(GUI_COLOR_INSTR_GA20,"GA20");
|
||||
UI_COLOR_CONFIG(GUI_COLOR_INSTR_POKEMINI,"Pokémon Mini");
|
||||
UI_COLOR_CONFIG(GUI_COLOR_INSTR_SM8521,"SM8521");
|
||||
UI_COLOR_CONFIG(GUI_COLOR_INSTR_UNKNOWN,"Other/Unknown");
|
||||
ImGui::TreePop();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1694,6 +1694,20 @@ bool FurnaceGUI::drawSysConf(int chan, DivSystem type, DivConfig& flags, bool mo
|
|||
}
|
||||
break;
|
||||
}
|
||||
case DIV_SYSTEM_SM8521: {
|
||||
bool noAntiClick=flags.getBool("noAntiClick",false);
|
||||
|
||||
if (ImGui::Checkbox("Disable anti-click",&noAntiClick)) {
|
||||
altered=true;
|
||||
}
|
||||
|
||||
if (altered) {
|
||||
e->lockSave([&]() {
|
||||
flags.set("noAntiClick",noAntiClick);
|
||||
});
|
||||
}
|
||||
break;
|
||||
}
|
||||
case DIV_SYSTEM_SWAN:
|
||||
case DIV_SYSTEM_BUBSYS_WSG:
|
||||
case DIV_SYSTEM_PET:
|
||||
|
|
|
|||
Loading…
Reference in a new issue