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furnace/src/engine/platform/arcade.cpp

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/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2022 tildearrow and contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "arcade.h"
#include "../engine.h"
#include <string.h>
#include <math.h>
#include "fmshared_OPM.h"
static unsigned short chanOffs[8]={
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
};
static unsigned short opOffs[4]={
0x00, 0x08, 0x10, 0x18
};
static bool isOutput[8][4]={
// 1 3 2 4
{false,false,false,true},
{false,false,false,true},
{false,false,false,true},
{false,false,false,true},
{false,false,true ,true},
{false,true ,true ,true},
{false,true ,true ,true},
{true ,true ,true ,true},
};
static unsigned char dtTable[8]={
7,6,5,0,1,2,3,4
};
static int orderedOps[4]={
0,2,1,3
};
#define rWrite(a,v) if (!skipRegisterWrites) {pendingWrites[a]=v;}
#define immWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); if (dumpWrites) {addWrite(a,v);} }
#define NOTE_LINEAR(x) (((x)<<6)+baseFreqOff+log2(parent->song.tuning/440.0)*12.0*64.0)
const char* regCheatSheetOPM[]={
"Test", "00",
"NoteCtl", "08",
"NoiseCtl", "0F",
"ClockA1", "10",
"ClockA2", "11",
"ClockB", "12",
"Control", "14",
"LFOFreq", "18",
"AMD_PMD", "19",
"LFOWave", "1B",
"L_R_FB_ALG", "20",
"KC", "28",
"KF", "30",
"PMS_AMS", "38",
"DT_MULT", "40",
"TL", "60",
"KS_AR", "80",
"AM_DR", "A0",
"DT2_SR", "C0",
"SL_RR", "E0",
NULL
};
const char** DivPlatformArcade::getRegisterSheet() {
return regCheatSheetOPM;
}
const char* DivPlatformArcade::getEffectName(unsigned char effect) {
switch (effect) {
case 0x10:
return "10xx: Set noise frequency (xx: value; 0 disables noise)";
break;
case 0x11:
return "11xx: Set feedback (0 to 7)";
break;
case 0x12:
return "12xx: Set level of operator 1 (0 highest, 7F lowest)";
break;
case 0x13:
return "13xx: Set level of operator 2 (0 highest, 7F lowest)";
break;
case 0x14:
return "14xx: Set level of operator 3 (0 highest, 7F lowest)";
break;
case 0x15:
return "15xx: Set level of operator 4 (0 highest, 7F lowest)";
break;
case 0x16:
return "16xy: Set operator multiplier (x: operator from 1 to 4; y: multiplier)";
break;
case 0x17:
return "17xx: Set LFO speed";
break;
case 0x18:
return "18xx: Set LFO waveform (0 saw, 1 square, 2 triangle, 3 noise)";
break;
case 0x19:
return "19xx: Set attack of all operators (0 to 1F)";
break;
case 0x1a:
return "1Axx: Set attack of operator 1 (0 to 1F)";
break;
case 0x1b:
return "1Bxx: Set attack of operator 2 (0 to 1F)";
break;
case 0x1c:
return "1Cxx: Set attack of operator 3 (0 to 1F)";
break;
case 0x1d:
return "1Dxx: Set attack of operator 4 (0 to 1F)";
break;
case 0x1e:
return "1Exx: Set AM depth (0 to 7F)";
break;
case 0x1f:
return "1Fxx: Set PM depth (0 to 7F)";
break;
case 0x30:
return "30xx: Toggle hard envelope reset on new notes";
break;
}
return NULL;
}
void DivPlatformArcade::acquire_nuked(short* bufL, short* bufR, size_t start, size_t len) {
static int o[2];
for (size_t h=start; h<start+len; h++) {
for (int i=0; i<8; i++) {
if (!writes.empty() && !fm.write_busy) {
QueuedWrite& w=writes.front();
if (w.addrOrVal) {
OPM_Write(&fm,1,w.val);
regPool[w.addr&0xff]=w.val;
//printf("write: %x = %.2x\n",w.addr,w.val);
writes.pop();
} else {
OPM_Write(&fm,0,w.addr);
w.addrOrVal=true;
}
}
OPM_Clock(&fm,NULL,NULL,NULL,NULL);
OPM_Clock(&fm,NULL,NULL,NULL,NULL);
OPM_Clock(&fm,NULL,NULL,NULL,NULL);
OPM_Clock(&fm,o,NULL,NULL,NULL);
}
for (int i=0; i<8; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=fm.ch_out[i];
}
if (o[0]<-32768) o[0]=-32768;
if (o[0]>32767) o[0]=32767;
if (o[1]<-32768) o[1]=-32768;
if (o[1]>32767) o[1]=32767;
bufL[h]=o[0];
bufR[h]=o[1];
}
}
void DivPlatformArcade::acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len) {
static int os[2];
for (size_t h=start; h<start+len; h++) {
os[0]=0; os[1]=0;
if (!writes.empty()) {
if (--delay<1) {
QueuedWrite& w=writes.front();
fm_ymfm->write(0x0+((w.addr>>8)<<1),w.addr);
fm_ymfm->write(0x1+((w.addr>>8)<<1),w.val);
regPool[w.addr&0xff]=w.val;
writes.pop();
delay=1;
}
}
fm_ymfm->generate(&out_ymfm);
os[0]=out_ymfm.data[0];
if (os[0]<-32768) os[0]=-32768;
if (os[0]>32767) os[0]=32767;
os[1]=out_ymfm.data[1];
if (os[1]<-32768) os[1]=-32768;
if (os[1]>32767) os[1]=32767;
bufL[h]=os[0];
bufR[h]=os[1];
}
}
void DivPlatformArcade::acquire(short* bufL, short* bufR, size_t start, size_t len) {
if (useYMFM) {
acquire_ymfm(bufL,bufR,start,len);
} else {
acquire_nuked(bufL,bufR,start,len);
}
}
static unsigned char noteMap[12]={
0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14
};
inline int hScale(int note) {
return ((note/12)<<4)+(noteMap[note%12]);
}
void DivPlatformArcade::tick(bool sysTick) {
for (int i=0; i<8; i++) {
chan[i].std.next();
if (chan[i].std.vol.had) {
chan[i].outVol=(chan[i].vol*MIN(127,chan[i].std.vol.val))/127;
for (int j=0; j<4; j++) {
unsigned short baseAddr=chanOffs[i]|opOffs[j];
DivInstrumentFM::Operator& op=chan[i].state.op[j];
if (isOutput[chan[i].state.alg][j]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[i].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
}
if (chan[i].std.arp.had) {
if (!chan[i].inPorta) {
if (chan[i].std.arp.mode) {
chan[i].baseFreq=NOTE_LINEAR(chan[i].std.arp.val);
} else {
chan[i].baseFreq=NOTE_LINEAR(chan[i].note+(signed char)chan[i].std.arp.val);
}
}
chan[i].freqChanged=true;
} else {
if (chan[i].std.arp.mode && chan[i].std.arp.finished) {
chan[i].baseFreq=NOTE_LINEAR(chan[i].note);
chan[i].freqChanged=true;
}
}
if (chan[i].std.duty.had) {
if (chan[i].std.duty.val>0) {
rWrite(0x0f,0x80|(0x20-chan[i].std.duty.val));
} else {
rWrite(0x0f,0);
}
}
if (chan[i].std.wave.had) {
rWrite(0x1b,chan[i].std.wave.val&3);
}
if (chan[i].std.panL.had) {
chan[i].chVolL=(chan[i].std.panL.val&2)>>1;
chan[i].chVolR=chan[i].std.panL.val&1;
if (isMuted[i]) {
rWrite(chanOffs[i]+ADDR_LR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3));
} else {
rWrite(chanOffs[i]+ADDR_LR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3)|((chan[i].chVolL&1)<<6)|((chan[i].chVolR&1)<<7));
}
}
if (chan[i].std.pitch.had) {
if (chan[i].std.pitch.mode) {
chan[i].pitch2+=chan[i].std.pitch.val;
CLAMP_VAR(chan[i].pitch2,-2048,2048);
} else {
chan[i].pitch2=chan[i].std.pitch.val;
}
chan[i].freqChanged=true;
}
if (chan[i].std.phaseReset.had) {
if (chan[i].std.phaseReset.val==1) {
chan[i].keyOn=true;
}
}
if (chan[i].std.ex1.had) {
amDepth=chan[i].std.ex1.val;
immWrite(0x19,amDepth);
}
if (chan[i].std.ex2.had) {
pmDepth=chan[i].std.ex2.val;
immWrite(0x19,0x80|pmDepth);
}
if (chan[i].std.ex3.had) {
immWrite(0x18,chan[i].std.ex3.val);
}
if (chan[i].std.alg.had) {
chan[i].state.alg=chan[i].std.alg.val;
if (isMuted[i]) {
rWrite(chanOffs[i]+ADDR_LR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3));
} else {
rWrite(chanOffs[i]+ADDR_LR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3)|((chan[i].chVolL&1)<<6)|((chan[i].chVolR&1)<<7));
}
if (!parent->song.algMacroBehavior) for (int j=0; j<4; j++) {
unsigned short baseAddr=chanOffs[i]|opOffs[j];
DivInstrumentFM::Operator& op=chan[i].state.op[j];
if (isMuted[i]) {
rWrite(baseAddr+ADDR_TL,127);
} else {
if (isOutput[chan[i].state.alg][j]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[i].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
}
}
if (chan[i].std.fb.had) {
chan[i].state.fb=chan[i].std.fb.val;
if (isMuted[i]) {
rWrite(chanOffs[i]+ADDR_LR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3));
} else {
rWrite(chanOffs[i]+ADDR_LR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3)|((chan[i].chVolL&1)<<6)|((chan[i].chVolR&1)<<7));
}
}
if (chan[i].std.fms.had) {
chan[i].state.fms=chan[i].std.fms.val;
rWrite(chanOffs[i]+ADDR_FMS_AMS,((chan[i].state.fms&7)<<4)|(chan[i].state.ams&3));
}
if (chan[i].std.ams.had) {
chan[i].state.ams=chan[i].std.ams.val;
rWrite(chanOffs[i]+ADDR_FMS_AMS,((chan[i].state.fms&7)<<4)|(chan[i].state.ams&3));
}
for (int j=0; j<4; j++) {
unsigned short baseAddr=chanOffs[i]|opOffs[j];
DivInstrumentFM::Operator& op=chan[i].state.op[j];
DivMacroInt::IntOp& m=chan[i].std.op[j];
if (m.am.had) {
op.am=m.am.val;
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
}
if (m.ar.had) {
op.ar=m.ar.val;
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
}
if (m.dr.had) {
op.dr=m.dr.val;
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
}
if (m.mult.had) {
op.mult=m.mult.val;
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
}
if (m.rr.had) {
op.rr=m.rr.val;
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
}
if (m.sl.had) {
op.sl=m.sl.val;
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
}
if (m.tl.had) {
op.tl=127-m.tl.val;
if (isOutput[chan[i].state.alg][j]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[i].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
if (m.rs.had) {
op.rs=m.rs.val;
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
}
if (m.dt.had) {
op.dt=m.dt.val;
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
}
if (m.d2r.had) {
op.d2r=m.d2r.val;
rWrite(baseAddr+ADDR_DT2_D2R,(op.d2r&31)|(op.dt2<<6));
}
if (m.dt2.had) {
op.dt2=m.dt2.val;
rWrite(baseAddr+ADDR_DT2_D2R,(op.d2r&31)|(op.dt2<<6));
}
}
if (chan[i].keyOn || chan[i].keyOff) {
if (chan[i].hardReset && chan[i].keyOn) {
for (int j=0; j<4; j++) {
unsigned short baseAddr=chanOffs[i]|opOffs[j];
immWrite(baseAddr+ADDR_SL_RR,0x0f);
immWrite(baseAddr+ADDR_TL,0x7f);
oldWrites[baseAddr+ADDR_SL_RR]=-1;
oldWrites[baseAddr+ADDR_TL]=-1;
}
}
immWrite(0x08,i);
if (chan[i].hardReset && chan[i].keyOn) {
for (int j=0; j<4; j++) {
unsigned short baseAddr=chanOffs[i]|opOffs[j];
for (int k=0; k<9; k++) {
immWrite(baseAddr+ADDR_SL_RR,0x0f);
}
}
}
chan[i].keyOff=false;
}
}
for (int i=0; i<256; i++) {
if (pendingWrites[i]!=oldWrites[i]) {
immWrite(i,pendingWrites[i]&0xff);
oldWrites[i]=pendingWrites[i];
}
}
for (int i=0; i<8; i++) {
if (chan[i].freqChanged) {
chan[i].freq=chan[i].baseFreq+(chan[i].pitch>>1)-64+chan[i].pitch2;
if (chan[i].freq<0) chan[i].freq=0;
if (chan[i].freq>=(95<<6)) chan[i].freq=(95<<6)-1;
immWrite(i+0x28,hScale(chan[i].freq>>6));
immWrite(i+0x30,chan[i].freq<<2);
chan[i].freqChanged=false;
}
if (chan[i].keyOn) {
immWrite(0x08,0x78|i);
chan[i].keyOn=false;
}
}
}
void DivPlatformArcade::muteChannel(int ch, bool mute) {
isMuted[ch]=mute;
if (isMuted[ch]) {
rWrite(chanOffs[ch]+ADDR_LR_FB_ALG,(chan[ch].state.alg&7)|(chan[ch].state.fb<<3));
} else {
rWrite(chanOffs[ch]+ADDR_LR_FB_ALG,(chan[ch].state.alg&7)|(chan[ch].state.fb<<3)|((chan[ch].chVolL&1)<<6)|((chan[ch].chVolR&1)<<7));
}
}
int DivPlatformArcade::dispatch(DivCommand c) {
switch (c.cmd) {
case DIV_CMD_NOTE_ON: {
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_FM);
if (chan[c.chan].insChanged) {
chan[c.chan].state=ins->fm;
}
chan[c.chan].macroInit(ins);
if (!chan[c.chan].std.vol.will) {
chan[c.chan].outVol=chan[c.chan].vol;
}
for (int i=0; i<4; i++) {
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
DivInstrumentFM::Operator op=chan[c.chan].state.op[i];
if (isOutput[chan[c.chan].state.alg][i]) {
if (!chan[c.chan].active || chan[c.chan].insChanged) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[c.chan].outVol&0x7f))/127));
}
} else {
if (chan[c.chan].insChanged) {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
if (chan[c.chan].insChanged) {
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
rWrite(baseAddr+ADDR_DT2_D2R,(op.d2r&31)|(op.dt2<<6));
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
}
}
if (chan[c.chan].insChanged) {
if (isMuted[c.chan]) {
rWrite(chanOffs[c.chan]+ADDR_LR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3));
} else {
rWrite(chanOffs[c.chan]+ADDR_LR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3)|((chan[c.chan].chVolL&1)<<6)|((chan[c.chan].chVolR&1)<<7));
}
rWrite(chanOffs[c.chan]+ADDR_FMS_AMS,((chan[c.chan].state.fms&7)<<4)|(chan[c.chan].state.ams&3));
}
chan[c.chan].insChanged=false;
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=NOTE_LINEAR(c.value);
chan[c.chan].note=c.value;
chan[c.chan].freqChanged=true;
}
chan[c.chan].keyOn=true;
chan[c.chan].active=true;
break;
}
case DIV_CMD_NOTE_OFF:
chan[c.chan].keyOff=true;
chan[c.chan].keyOn=false;
chan[c.chan].active=false;
break;
case DIV_CMD_NOTE_OFF_ENV:
chan[c.chan].keyOff=true;
chan[c.chan].keyOn=false;
chan[c.chan].active=false;
chan[c.chan].std.release();
break;
case DIV_CMD_ENV_RELEASE:
chan[c.chan].std.release();
break;
case DIV_CMD_VOLUME: {
chan[c.chan].vol=c.value;
if (!chan[c.chan].std.vol.has) {
chan[c.chan].outVol=c.value;
}
for (int i=0; i<4; i++) {
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
if (isOutput[chan[c.chan].state.alg][i]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[c.chan].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
}
break;
}
case DIV_CMD_GET_VOLUME: {
return chan[c.chan].vol;
break;
}
case DIV_CMD_INSTRUMENT:
if (chan[c.chan].ins!=c.value || c.value2==1) {
chan[c.chan].insChanged=true;
}
chan[c.chan].ins=c.value;
break;
case DIV_CMD_PANNING: {
chan[c.chan].chVolL=(c.value>0);
chan[c.chan].chVolR=(c.value2>0);
if (isMuted[c.chan]) {
rWrite(chanOffs[c.chan]+ADDR_LR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3));
} else {
rWrite(chanOffs[c.chan]+ADDR_LR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3)|((chan[c.chan].chVolL&1)<<6)|((chan[c.chan].chVolR&1)<<7));
}
break;
}
case DIV_CMD_PITCH: {
chan[c.chan].pitch=c.value;
chan[c.chan].freqChanged=true;
break;
}
case DIV_CMD_NOTE_PORTA: {
int destFreq=NOTE_LINEAR(c.value2);
int newFreq;
bool return2=false;
if (destFreq>chan[c.chan].baseFreq) {
newFreq=chan[c.chan].baseFreq+c.value;
if (newFreq>=destFreq) {
newFreq=destFreq;
return2=true;
}
} else {
newFreq=chan[c.chan].baseFreq-c.value;
if (newFreq<=destFreq) {
newFreq=destFreq;
return2=true;
}
}
chan[c.chan].baseFreq=newFreq;
chan[c.chan].freqChanged=true;
if (return2) {
chan[c.chan].inPorta=false;
return 2;
}
break;
}
case DIV_CMD_LEGATO: {
chan[c.chan].baseFreq=NOTE_LINEAR(c.value);
chan[c.chan].freqChanged=true;
break;
}
case DIV_CMD_FM_LFO: {
rWrite(0x18,c.value);
break;
}
case DIV_CMD_FM_LFO_WAVE: {
rWrite(0x1b,c.value&3);
break;
}
case DIV_CMD_FM_FB: {
chan[c.chan].state.fb=c.value&7;
if (isMuted[c.chan]) {
rWrite(chanOffs[c.chan]+ADDR_LR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3));
} else {
rWrite(chanOffs[c.chan]+ADDR_LR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3)|((chan[c.chan].chVolL&1)<<6)|((chan[c.chan].chVolR&1)<<7));
}
break;
}
case DIV_CMD_FM_MULT: {
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.mult=c.value2&15;
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
break;
}
case DIV_CMD_FM_TL: {
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.tl=c.value2;
if (isOutput[chan[c.chan].state.alg][c.value]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[c.chan].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
break;
}
case DIV_CMD_FM_AR: {
if (c.value<0) {
for (int i=0; i<4; i++) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
op.ar=c.value2&31;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
}
} else {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.ar=c.value2&31;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
}
break;
}
case DIV_CMD_FM_AM_DEPTH: {
amDepth=c.value;
immWrite(0x19,amDepth);
break;
}
case DIV_CMD_FM_PM_DEPTH: {
pmDepth=c.value;
immWrite(0x19,0x80|pmDepth);
break;
}
case DIV_CMD_FM_HARD_RESET:
chan[c.chan].hardReset=c.value;
break;
case DIV_CMD_STD_NOISE_FREQ: {
if (c.chan!=7) break;
if (c.value) {
if (c.value>0x1f) {
rWrite(0x0f,0x80);
} else {
rWrite(0x0f,0x80|(0x1f-c.value));
}
} else {
rWrite(0x0f,0);
}
break;
}
case DIV_ALWAYS_SET_VOLUME:
return 0;
break;
case DIV_CMD_GET_VOLMAX:
return 127;
break;
case DIV_CMD_PRE_PORTA:
chan[c.chan].inPorta=c.value;
break;
case DIV_CMD_PRE_NOTE:
break;
default:
//printf("WARNING: unimplemented command %d\n",c.cmd);
break;
}
return 1;
}
void DivPlatformArcade::forceIns() {
for (int i=0; i<8; i++) {
for (int j=0; j<4; j++) {
unsigned short baseAddr=chanOffs[i]|opOffs[j];
DivInstrumentFM::Operator op=chan[i].state.op[j];
if (isOutput[chan[i].state.alg][j]) {
rWrite(baseAddr+ADDR_TL,127-(((127-op.tl)*(chan[i].outVol&0x7f))/127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
rWrite(baseAddr+ADDR_DT2_D2R,(op.d2r&31)|(op.dt2<<6));
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
}
if (isMuted[i]) {
rWrite(chanOffs[i]+ADDR_LR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3));
} else {
rWrite(chanOffs[i]+ADDR_LR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3)|((chan[i].chVolL&1)<<6)|((chan[i].chVolR&1)<<7));
}
rWrite(chanOffs[i]+ADDR_FMS_AMS,((chan[i].state.fms&7)<<4)|(chan[i].state.ams&3));
if (chan[i].active) {
chan[i].keyOn=true;
chan[i].freqChanged=true;
}
}
immWrite(0x19,amDepth);
immWrite(0x19,0x80|pmDepth);
}
void DivPlatformArcade::notifyInsChange(int ins) {
for (int i=0; i<8; i++) {
if (chan[i].ins==ins) {
chan[i].insChanged=true;
}
}
}
void* DivPlatformArcade::getChanState(int ch) {
return &chan[ch];
}
DivDispatchOscBuffer* DivPlatformArcade::getOscBuffer(int ch) {
return oscBuf[ch];
}
unsigned char* DivPlatformArcade::getRegisterPool() {
return regPool;
}
int DivPlatformArcade::getRegisterPoolSize() {
return 256;
}
void DivPlatformArcade::poke(unsigned int addr, unsigned short val) {
immWrite(addr,val);
}
void DivPlatformArcade::poke(std::vector<DivRegWrite>& wlist) {
for (DivRegWrite& i: wlist) immWrite(i.addr,i.val);
}
void DivPlatformArcade::reset() {
while (!writes.empty()) writes.pop();
memset(regPool,0,256);
if (useYMFM) {
fm_ymfm->reset();
} else {
memset(&fm,0,sizeof(opm_t));
OPM_Reset(&fm);
}
if (dumpWrites) {
addWrite(0xffffffff,0);
}
for (int i=0; i<8; i++) {
chan[i]=DivPlatformArcade::Channel();
chan[i].std.setEngine(parent);
chan[i].vol=0x7f;
chan[i].outVol=0x7f;
}
for (int i=0; i<256; i++) {
oldWrites[i]=-1;
pendingWrites[i]=-1;
}
lastBusy=60;
pcmCycles=0;
pcmL=0;
pcmR=0;
delay=0;
amDepth=0x7f;
pmDepth=0x7f;
//rWrite(0x18,0x10);
immWrite(0x19,amDepth);
immWrite(0x19,0x80|pmDepth);
//rWrite(0x1b,0x00);
extMode=false;
}
void DivPlatformArcade::setFlags(unsigned int flags) {
if (flags==2) {
chipClock=4000000.0;
baseFreqOff=-122;
} else if (flags==1) {
chipClock=COLOR_PAL*4.0/5.0;
baseFreqOff=12;
} else {
chipClock=COLOR_NTSC;
baseFreqOff=0;
}
rate=chipClock/64;
for (int i=0; i<8; i++) {
oscBuf[i]->rate=rate;
}
}
bool DivPlatformArcade::isStereo() {
return true;
}
void DivPlatformArcade::setYMFM(bool use) {
useYMFM=use;
}
int DivPlatformArcade::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
parent=p;
dumpWrites=false;
skipRegisterWrites=false;
for (int i=0; i<8; i++) {
isMuted[i]=false;
oscBuf[i]=new DivDispatchOscBuffer;
}
setFlags(flags);
if (useYMFM) fm_ymfm=new ymfm::ym2151(iface);
reset();
return 8;
}
void DivPlatformArcade::quit() {
for (int i=0; i<8; i++) {
delete oscBuf[i];
}
if (useYMFM) {
delete fm_ymfm;
}
}
DivPlatformArcade::~DivPlatformArcade() {
}
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