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furnace/src/engine/platform/ym2610.cpp
tildearrow c009cb3536 dev112 - prepare for advanced arp macro 
this new advanced arp macro offers more flexibility and reduces code duplication
it allows you to set each step of the macro to either relative or fixed mode
(instead of just one mode for the entire macro)

the UI is still a work in progress and doesn't work well

this change is big and may break things! further fixes incoming
2022-08-22 15:59:45 -05:00

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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 "ym2610.h"
#include "sound/ymfm/ymfm.h"
#include "../engine.h"
#include "../../ta-log.h"
#include <string.h>
#include <math.h>
#define CHIP_FREQBASE fmFreqBase
#define CHIP_DIVIDER fmDivBase
const char* regCheatSheetYM2610[]={
// SSG
"SSG_FreqL_A", "000",
"SSG_FreqH_A", "001",
"SSG_FreqL_B", "002",
"SSG_FreqH_B", "003",
"SSG_FreqL_C", "004",
"SSG_FreqH_C", "005",
"SSG_FreqNoise", "006",
"SSG_Enable", "007",
"SSG_Volume_A", "008",
"SSG_Volume_B", "009",
"SSG_Volume_C", "00A",
"SSG_FreqL_Env", "00B",
"SSG_FreqH_Env", "00C",
"SSG_Control_Env", "00D",
// ADPCM-B
"ADPCMB_Control", "010",
"ADPCMB_L_R", "011",
"ADPCMB_StartL", "012",
"ADPCMB_StartH", "013",
"ADPCMB_EndL", "014",
"ADPCMB_EndH", "015",
"ADPCMB_FreqL", "019",
"ADPCMB_FreqH", "01A",
"ADPCMB_Volume", "01B",
"ADPCM_Flag", "01C",
// FM (Common)
"FM_Test", "021",
"FM_LFOFreq", "022",
"ClockA1", "024",
"ClockA2", "025",
"ClockB", "026",
"FM_Control", "027",
"FM_NoteCtl", "028",
// FM (Channel 1-2)
"FM1_Op1_DT_MULT", "031",
"FM2_Op1_DT_MULT", "032",
"FM1_Op2_DT_MULT", "035",
"FM2_Op2_DT_MULT", "036",
"FM1_Op3_DT_MULT", "039",
"FM2_Op3_DT_MULT", "03A",
"FM1_Op4_DT_MULT", "03D",
"FM2_Op4_DT_MULT", "03E",
"FM1_Op1_TL", "041",
"FM2_Op1_TL", "042",
"FM1_Op2_TL", "045",
"FM2_Op2_TL", "046",
"FM1_Op3_TL", "049",
"FM2_Op3_TL", "04A",
"FM1_Op4_TL", "04D",
"FM2_Op4_TL", "04E",
"FM1_Op1_KS_AR", "051",
"FM2_Op1_KS_AR", "052",
"FM1_Op2_KS_AR", "055",
"FM2_Op2_KS_AR", "056",
"FM1_Op3_KS_AR", "059",
"FM2_Op3_KS_AR", "05A",
"FM1_Op4_KS_AR", "05D",
"FM2_Op4_KS_AR", "05E",
"FM1_Op1_AM_DR", "061",
"FM2_Op1_AM_DR", "062",
"FM1_Op2_AM_DR", "065",
"FM2_Op2_AM_DR", "066",
"FM1_Op3_AM_DR", "069",
"FM2_Op3_AM_DR", "06A",
"FM1_Op4_AM_DR", "06D",
"FM2_Op4_AM_DR", "06E",
"FM1_Op1_SR", "071",
"FM2_Op1_SR", "072",
"FM1_Op2_SR", "075",
"FM2_Op2_SR", "076",
"FM1_Op3_SR", "079",
"FM2_Op3_SR", "07A",
"FM1_Op4_SR", "07D",
"FM2_Op4_SR", "07E",
"FM1_Op1_SL_RR", "081",
"FM2_Op1_SL_RR", "082",
"FM1_Op2_SL_RR", "085",
"FM2_Op2_SL_RR", "086",
"FM1_Op3_SL_RR", "089",
"FM2_Op3_SL_RR", "08A",
"FM1_Op4_SL_RR", "08D",
"FM2_Op4_SL_RR", "08E",
"FM1_Op1_SSG_EG", "091",
"FM2_Op1_SSG_EG", "092",
"FM1_Op2_SSG_EG", "095",
"FM2_Op2_SSG_EG", "096",
"FM1_Op3_SSG_EG", "099",
"FM2_Op3_SSG_EG", "09A",
"FM1_Op4_SSG_EG", "09D",
"FM2_Op4_SSG_EG", "09E",
"FM1_FNum1", "0A1",
"FM2_(Op1)FNum1", "0A2",
"FM1_FNum2", "0A5",
"FM2_(Op1)FNum2", "0A6",
"FM2_Op2_FNum1", "0A8",
"FM2_Op3_FNum1", "0A9",
"FM2_Op4_FNum1", "0AA",
"FM2_Op2_FNum2", "0AC",
"FM2_Op3_FNum2", "0AD",
"FM2_Op4_FNum2", "0AE",
"FM1_FB_ALG", "0B1",
"FM2_FB_ALG", "0B2",
"FM1_Pan_LFO", "0B5",
"FM2_Pan_LFO", "0B6",
// ADPCM-A
"ADPCMA_Control", "100",
"ADPCMA_MVol", "101",
"ADPCMA_Test", "102",
"ADPCMA_Ch1_Vol", "108",
"ADPCMA_Ch2_Vol", "109",
"ADPCMA_Ch3_Vol", "10A",
"ADPCMA_Ch4_Vol", "10B",
"ADPCMA_Ch5_Vol", "10C",
"ADPCMA_Ch6_Vol", "10D",
"ADPCMA_Ch1_StL", "110",
"ADPCMA_Ch2_StL", "111",
"ADPCMA_Ch3_StL", "112",
"ADPCMA_Ch4_StL", "113",
"ADPCMA_Ch5_StL", "114",
"ADPCMA_Ch6_StL", "115",
"ADPCMA_Ch1_StH", "118",
"ADPCMA_Ch2_StH", "119",
"ADPCMA_Ch3_StH", "11A",
"ADPCMA_Ch4_StH", "11B",
"ADPCMA_Ch5_StH", "11C",
"ADPCMA_Ch6_StH", "11D",
"ADPCMA_Ch1_EdL", "120",
"ADPCMA_Ch2_EdL", "121",
"ADPCMA_Ch3_EdL", "122",
"ADPCMA_Ch4_EdL", "123",
"ADPCMA_Ch5_EdL", "124",
"ADPCMA_Ch6_EdL", "125",
"ADPCMA_Ch1_EdH", "128",
"ADPCMA_Ch2_EdH", "129",
"ADPCMA_Ch3_EdH", "12A",
"ADPCMA_Ch4_EdH", "12B",
"ADPCMA_Ch5_EdH", "12C",
"ADPCMA_Ch6_EdH", "12D",
// FM (Channel 3-4)
"FM3_Op1_DT_MULT", "131",
"FM4_Op1_DT_MULT", "132",
"FM3_Op2_DT_MULT", "135",
"FM4_Op2_DT_MULT", "136",
"FM3_Op3_DT_MULT", "139",
"FM4_Op3_DT_MULT", "13A",
"FM3_Op4_DT_MULT", "13D",
"FM4_Op4_DT_MULT", "13E",
"FM3_Op1_TL", "141",
"FM4_Op1_TL", "142",
"FM3_Op2_TL", "145",
"FM4_Op2_TL", "146",
"FM3_Op3_TL", "149",
"FM4_Op3_TL", "14A",
"FM3_Op4_TL", "14D",
"FM4_Op4_TL", "14E",
"FM3_Op1_KS_AR", "151",
"FM4_Op1_KS_AR", "152",
"FM3_Op2_KS_AR", "155",
"FM4_Op2_KS_AR", "156",
"FM3_Op3_KS_AR", "159",
"FM4_Op3_KS_AR", "15A",
"FM3_Op4_KS_AR", "15D",
"FM4_Op4_KS_AR", "15E",
"FM3_Op1_AM_DR", "161",
"FM4_Op1_AM_DR", "162",
"FM3_Op2_AM_DR", "165",
"FM4_Op2_AM_DR", "166",
"FM3_Op3_AM_DR", "169",
"FM4_Op3_AM_DR", "16A",
"FM3_Op4_AM_DR", "16D",
"FM4_Op4_AM_DR", "16E",
"FM3_Op1_SR", "171",
"FM4_Op1_SR", "172",
"FM3_Op2_SR", "175",
"FM4_Op2_SR", "176",
"FM3_Op3_SR", "179",
"FM4_Op3_SR", "17A",
"FM3_Op4_SR", "17D",
"FM4_Op4_SR", "17E",
"FM3_Op1_SL_RR", "181",
"FM4_Op1_SL_RR", "182",
"FM3_Op2_SL_RR", "185",
"FM4_Op2_SL_RR", "186",
"FM3_Op3_SL_RR", "189",
"FM4_Op3_SL_RR", "18A",
"FM3_Op4_SL_RR", "18D",
"FM4_Op4_SL_RR", "18E",
"FM3_Op1_SSG_EG", "191",
"FM4_Op1_SSG_EG", "192",
"FM3_Op2_SSG_EG", "195",
"FM4_Op2_SSG_EG", "196",
"FM3_Op3_SSG_EG", "199",
"FM4_Op3_SSG_EG", "19A",
"FM3_Op4_SSG_EG", "19D",
"FM4_Op4_SSG_EG", "19E",
"FM3_FNum1", "1A1",
"FM4_FNum1", "1A2",
"FM3_FNum2", "1A5",
"FM4_FNum2", "1A6",
"FM3_FB_ALG", "1B1",
"FM4_FB_ALG", "1B2",
"FM3_Pan_LFO", "1B5",
"FM4_Pan_LFO", "1B6",
NULL
};
const void* DivPlatformYM2610Base::getSampleMem(int index) {
return index == 0 ? adpcmAMem : index == 1 ? adpcmBMem : NULL;
}
size_t DivPlatformYM2610Base::getSampleMemCapacity(int index) {
return index == 0 ? 16777216 : index == 1 ? 16777216 : 0;
}
size_t DivPlatformYM2610Base::getSampleMemUsage(int index) {
return index == 0 ? adpcmAMemLen : index == 1 ? adpcmBMemLen : 0;
}
void DivPlatformYM2610Base::renderSamples() {
memset(adpcmAMem,0,getSampleMemCapacity(0));
size_t memPos=0;
for (int i=0; i<parent->song.sampleLen; i++) {
DivSample* s=parent->song.sample[i];
int paddedLen=(s->lengthA+255)&(~0xff);
if ((memPos&0xf00000)!=((memPos+paddedLen)&0xf00000)) {
memPos=(memPos+0xfffff)&0xf00000;
}
if (memPos>=getSampleMemCapacity(0)) {
logW("out of ADPCM-A memory for sample %d!",i);
break;
}
if (memPos+paddedLen>=getSampleMemCapacity(0)) {
memcpy(adpcmAMem+memPos,s->dataA,getSampleMemCapacity(0)-memPos);
logW("out of ADPCM-A memory for sample %d!",i);
} else {
memcpy(adpcmAMem+memPos,s->dataA,paddedLen);
}
s->offA=memPos;
memPos+=paddedLen;
}
adpcmAMemLen=memPos+256;
memset(adpcmBMem,0,getSampleMemCapacity(1));
memPos=0;
for (int i=0; i<parent->song.sampleLen; i++) {
DivSample* s=parent->song.sample[i];
int paddedLen=(s->lengthB+255)&(~0xff);
if ((memPos&0xf00000)!=((memPos+paddedLen)&0xf00000)) {
memPos=(memPos+0xfffff)&0xf00000;
}
if (memPos>=getSampleMemCapacity(1)) {
logW("out of ADPCM-B memory for sample %d!",i);
break;
}
if (memPos+paddedLen>=getSampleMemCapacity(1)) {
memcpy(adpcmBMem+memPos,s->dataB,getSampleMemCapacity(1)-memPos);
logW("out of ADPCM-B memory for sample %d!",i);
} else {
memcpy(adpcmBMem+memPos,s->dataB,paddedLen);
}
s->offB=memPos;
memPos+=paddedLen;
}
adpcmBMemLen=memPos+256;
}
int DivPlatformYM2610Base::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
parent=p;
adpcmAMem=new unsigned char[getSampleMemCapacity(0)];
adpcmAMemLen=0;
adpcmBMem=new unsigned char[getSampleMemCapacity(1)];
adpcmBMemLen=0;
iface.adpcmAMem=adpcmAMem;
iface.adpcmBMem=adpcmBMem;
iface.sampleBank=0;
return 0;
}
void DivPlatformYM2610Base::quit() {
delete[] adpcmAMem;
delete[] adpcmBMem;
}
const char** DivPlatformYM2610::getRegisterSheet() {
return regCheatSheetYM2610;
}
double DivPlatformYM2610::NOTE_OPNB(int ch, int note) {
if (ch>6) { // ADPCM
return NOTE_ADPCMB(note);
} else if (ch>3) { // PSG
return NOTE_PERIODIC(note);
}
// FM
return NOTE_FNUM_BLOCK(note,11);
}
double DivPlatformYM2610::NOTE_ADPCMB(int note) {
if (chan[13].sample>=0 && chan[13].sample<parent->song.sampleLen) {
double off=65535.0*(double)(parent->getSample(chan[13].sample)->centerRate)/8363.0;
return parent->calcBaseFreq((double)chipClock/144,off,note,false);
}
return 0;
}
void DivPlatformYM2610::acquire(short* bufL, short* bufR, size_t start, size_t len) {
static int os[2];
ymfm::ym2610::fm_engine* fme=fm->debug_fm_engine();
ymfm::ssg_engine* ssge=fm->debug_ssg_engine();
ymfm::adpcm_a_engine* aae=fm->debug_adpcm_a_engine();
ymfm::adpcm_b_engine* abe=fm->debug_adpcm_b_engine();
ymfm::ssg_engine::output_data ssgOut;
ymfm::fm_channel<ymfm::opn_registers_base<true>>* fmChan[6];
ymfm::adpcm_a_channel* adpcmAChan[6];
for (int i=0; i<4; i++) {
fmChan[i]=fme->debug_channel(bchOffs[i]);
}
for (int i=0; i<6; i++) {
adpcmAChan[i]=aae->debug_channel(i);
}
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->write(0x0+((w.addr>>8)<<1),w.addr);
fm->write(0x1+((w.addr>>8)<<1),w.val);
regPool[w.addr&0x1ff]=w.val;
writes.pop_front();
delay=4;
}
}
fm->generate(&fmout);
os[0]=fmout.data[0]+(fmout.data[2]>>1);
if (os[0]<-32768) os[0]=-32768;
if (os[0]>32767) os[0]=32767;
os[1]=fmout.data[1]+(fmout.data[2]>>1);
if (os[1]<-32768) os[1]=-32768;
if (os[1]>32767) os[1]=32767;
bufL[h]=os[0];
bufR[h]=os[1];
for (int i=0; i<4; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=(fmChan[i]->debug_output(0)+fmChan[i]->debug_output(1));
}
ssge->get_last_out(ssgOut);
for (int i=4; i<7; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=ssgOut.data[i-4];
}
for (int i=7; i<13; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=adpcmAChan[i-7]->get_last_out(0)+adpcmAChan[i-7]->get_last_out(1);
}
oscBuf[13]->data[oscBuf[13]->needle++]=abe->get_last_out(0)+abe->get_last_out(1);
}
}
void DivPlatformYM2610::tick(bool sysTick) {
// PSG
ay->tick(sysTick);
ay->flushWrites();
for (DivRegWrite& i: ay->getRegisterWrites()) {
immWrite(i.addr&15,i.val);
}
ay->getRegisterWrites().clear();
// FM
for (int i=0; i<4; i++) {
if (i==1 && extMode) continue;
chan[i].std.next();
if (chan[i].std.vol.had) {
chan[i].outVol=VOL_SCALE_LOG(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-VOL_SCALE_LOG(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) {
chan[i].baseFreq=NOTE_FNUM_BLOCK(parent->calcArp(chan[i].note,chan[i].std.arp.val),11);
}
chan[i].freqChanged=true;
}
if (chan[i].std.panL.had) {
chan[i].pan=chan[i].std.panL.val&3;
rWrite(chanOffs[i]+ADDR_LRAF,(isMuted[i]?0:(chan[i].pan<<6))|(chan[i].state.fms&7)|((chan[i].state.ams&3)<<4));
}
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,-32768,32767);
} 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].active) {
chan[i].keyOn=true;
}
}
if (chan[i].std.alg.had) {
chan[i].state.alg=chan[i].std.alg.val;
rWrite(chanOffs[i]+ADDR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3));
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-VOL_SCALE_LOG(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;
rWrite(chanOffs[i]+ADDR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3));
}
if (chan[i].std.fms.had) {
chan[i].state.fms=chan[i].std.fms.val;
rWrite(chanOffs[i]+ADDR_LRAF,(isMuted[i]?0:(chan[i].pan<<6))|(chan[i].state.fms&7)|((chan[i].state.ams&3)<<4));
}
if (chan[i].std.ams.had) {
chan[i].state.ams=chan[i].std.ams.val;
rWrite(chanOffs[i]+ADDR_LRAF,(isMuted[i]?0:(chan[i].pan<<6))|(chan[i].state.fms&7)|((chan[i].state.ams&3)<<4));
}
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-VOL_SCALE_LOG(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);
}
if (m.ssg.had) {
op.ssgEnv=m.ssg.val;
rWrite(baseAddr+ADDR_SSG,op.ssgEnv&15);
}
}
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;
//rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
}
}
immWrite(0x28,0x00|konOffs[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<100; k++) {
immWrite(baseAddr+ADDR_SL_RR,0x0f);
}
}
}
chan[i].keyOff=false;
}
}
// ADPCM-B
if (chan[13].furnacePCM) {
chan[13].std.next();
if (chan[13].std.vol.had) {
chan[13].outVol=(chan[13].vol*MIN(64,chan[13].std.vol.val))/64;
immWrite(0x1b,chan[13].outVol);
}
if (chan[13].std.arp.had) {
if (!chan[13].inPorta) {
chan[13].baseFreq=NOTE_ADPCMB(parent->calcArp(chan[13].note,chan[13].std.arp.val));
}
chan[13].freqChanged=true;
}
}
if (chan[13].freqChanged) {
if (chan[13].sample>=0 && chan[13].sample<parent->song.sampleLen) {
double off=65535.0*(double)(parent->getSample(chan[13].sample)->centerRate)/8363.0;
chan[13].freq=parent->calcFreq(chan[13].baseFreq,chan[13].pitch,false,4,chan[13].pitch2,(double)chipClock/144,off);
} else {
chan[13].freq=0;
}
immWrite(0x19,chan[13].freq&0xff);
immWrite(0x1a,(chan[13].freq>>8)&0xff);
chan[13].freqChanged=false;
}
for (int i=16; i<512; i++) {
if (pendingWrites[i]!=oldWrites[i]) {
immWrite(i,pendingWrites[i]&0xff);
oldWrites[i]=pendingWrites[i];
}
}
for (int i=0; i<4; i++) {
if (i==1 && extMode) continue;
if (chan[i].freqChanged) {
if (parent->song.linearPitch==2) {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,4,chan[i].pitch2,chipClock,CHIP_FREQBASE,11);
} else {
int fNum=parent->calcFreq(chan[i].baseFreq&0x7ff,chan[i].pitch,false,4,chan[i].pitch2,chipClock,CHIP_FREQBASE,11);
int block=(chan[i].baseFreq&0xf800)>>11;
if (fNum<0) fNum=0;
if (fNum>2047) {
while (block<7) {
fNum>>=1;
block++;
}
if (fNum>2047) fNum=2047;
}
chan[i].freq=(block<<11)|fNum;
}
if (chan[i].freq>0x3fff) chan[i].freq=0x3fff;
immWrite(chanOffs[i]+ADDR_FREQH,chan[i].freq>>8);
immWrite(chanOffs[i]+ADDR_FREQ,chan[i].freq&0xff);
chan[i].freqChanged=false;
}
if (chan[i].keyOn) {
immWrite(0x28,0xf0|konOffs[i]);
chan[i].keyOn=false;
}
}
}
int DivPlatformYM2610::dispatch(DivCommand c) {
if (c.chan>3 && c.chan<7) {
c.chan-=4;
return ay->dispatch(c);
}
switch (c.cmd) {
case DIV_CMD_NOTE_ON: {
if (c.chan>12) { // ADPCM-B
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_FM);
if (ins->type==DIV_INS_AMIGA) {
chan[c.chan].furnacePCM=true;
} else {
chan[c.chan].furnacePCM=false;
}
if (skipRegisterWrites) break;
if (chan[c.chan].furnacePCM) {
chan[c.chan].macroInit(ins);
if (!chan[c.chan].std.vol.will) {
chan[c.chan].outVol=chan[c.chan].vol;
immWrite(0x1b,chan[c.chan].outVol);
}
chan[c.chan].sample=ins->amiga.getSample(c.value);
if (chan[c.chan].sample>=0 && chan[c.chan].sample<parent->song.sampleLen) {
DivSample* s=parent->getSample(chan[c.chan].sample);
immWrite(0x12,(s->offB>>8)&0xff);
immWrite(0x13,s->offB>>16);
int end=s->offB+s->lengthB-1;
immWrite(0x14,(end>>8)&0xff);
immWrite(0x15,end>>16);
immWrite(0x11,isMuted[c.chan]?0:(chan[c.chan].pan<<6));
immWrite(0x10,(s->isLoopable())?0x90:0x80); // start/repeat
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].note=c.value;
chan[c.chan].baseFreq=NOTE_ADPCMB(chan[c.chan].note);
chan[c.chan].freqChanged=true;
}
chan[c.chan].active=true;
chan[c.chan].keyOn=true;
} else {
immWrite(0x10,0x01); // reset
immWrite(0x12,0);
immWrite(0x13,0);
immWrite(0x14,0);
immWrite(0x15,0);
break;
}
} else {
chan[c.chan].sample=-1;
chan[c.chan].macroInit(NULL);
chan[c.chan].outVol=chan[c.chan].vol;
if ((12*sampleBank+c.value%12)>=parent->song.sampleLen) {
immWrite(0x10,0x01); // reset
immWrite(0x12,0);
immWrite(0x13,0);
immWrite(0x14,0);
immWrite(0x15,0);
break;
}
DivSample* s=parent->getSample(12*sampleBank+c.value%12);
immWrite(0x12,(s->offB>>8)&0xff);
immWrite(0x13,s->offB>>16);
int end=s->offB+s->lengthB-1;
immWrite(0x14,(end>>8)&0xff);
immWrite(0x15,end>>16);
immWrite(0x11,isMuted[c.chan]?0:(chan[c.chan].pan<<6));
immWrite(0x10,(s->isLoopable())?0x90:0x80); // start/repeat
int freq=(65536.0*(double)s->rate)/((double)chipClock/144.0);
immWrite(0x19,freq&0xff);
immWrite(0x1a,(freq>>8)&0xff);
}
break;
}
if (c.chan>6) { // ADPCM-A
if (skipRegisterWrites) break;
if ((12*sampleBank+c.value%12)>=parent->song.sampleLen) {
immWrite(0x100,0x80|(1<<(c.chan-7)));
immWrite(0x110+c.chan-7,0);
immWrite(0x118+c.chan-7,0);
immWrite(0x120+c.chan-7,0);
immWrite(0x128+c.chan-7,0);
break;
}
DivSample* s=parent->getSample(12*sampleBank+c.value%12);
immWrite(0x110+c.chan-7,(s->offA>>8)&0xff);
immWrite(0x118+c.chan-7,s->offA>>16);
int end=s->offA+s->lengthA-1;
immWrite(0x120+c.chan-7,(end>>8)&0xff);
immWrite(0x128+c.chan-7,end>>16);
immWrite(0x108+(c.chan-7),isMuted[c.chan]?0:((chan[c.chan].pan<<6)|chan[c.chan].vol));
immWrite(0x100,0x00|(1<<(c.chan-7)));
break;
}
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_FM);
chan[c.chan].macroInit(ins);
if (c.chan<4) {
if (!chan[c.chan].std.vol.will) {
chan[c.chan].outVol=chan[c.chan].vol;
}
}
if (chan[c.chan].insChanged) {
chan[c.chan].state=ins->fm;
}
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-VOL_SCALE_LOG(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);
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
rWrite(baseAddr+ADDR_SSG,op.ssgEnv&15);
}
}
if (chan[c.chan].insChanged) {
rWrite(chanOffs[c.chan]+ADDR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3));
rWrite(chanOffs[c.chan]+ADDR_LRAF,(isMuted[c.chan]?0:(chan[c.chan].pan<<6))|(chan[c.chan].state.fms&7)|((chan[c.chan].state.ams&3)<<4));
}
chan[c.chan].insChanged=false;
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=NOTE_FNUM_BLOCK(c.value,11);
chan[c.chan].portaPause=false;
chan[c.chan].freqChanged=true;
chan[c.chan].note=c.value;
}
chan[c.chan].keyOn=true;
chan[c.chan].active=true;
break;
}
case DIV_CMD_NOTE_OFF:
if (c.chan>12) {
immWrite(0x10,0x01); // reset
break;
}
if (c.chan>6) {
immWrite(0x100,0x80|(1<<(c.chan-7)));
break;
}
chan[c.chan].keyOff=true;
chan[c.chan].keyOn=false;
chan[c.chan].active=false;
chan[c.chan].macroInit(NULL);
break;
case DIV_CMD_NOTE_OFF_ENV:
if (c.chan>12) {
immWrite(0x10,0x01); // reset
break;
}
if (c.chan>6) {
immWrite(0x100,0x80|(1<<(c.chan-7)));
break;
}
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;
}
if (c.chan>12) { // ADPCM-B
immWrite(0x1b,chan[c.chan].outVol);
break;
}
if (c.chan>6) { // ADPCM-A
immWrite(0x108+(c.chan-7),isMuted[c.chan]?0:((chan[c.chan].pan<<6)|chan[c.chan].vol));
break;
}
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-VOL_SCALE_LOG(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: {
if (c.value==0 && c.value2==0) {
chan[c.chan].pan=3;
} else {
chan[c.chan].pan=(c.value2>0)|((c.value>0)<<1);
}
if (c.chan>12) {
immWrite(0x11,isMuted[c.chan]?0:(chan[c.chan].pan<<6));
break;
}
if (c.chan>6) {
immWrite(0x108+(c.chan-7),isMuted[c.chan]?0:((chan[c.chan].pan<<6)|chan[c.chan].vol));
break;
}
rWrite(chanOffs[c.chan]+ADDR_LRAF,(isMuted[c.chan]?0:(chan[c.chan].pan<<6))|(chan[c.chan].state.fms&7)|((chan[c.chan].state.ams&3)<<4));
break;
}
case DIV_CMD_PITCH: {
if (c.chan==13 && !chan[c.chan].furnacePCM) break;
chan[c.chan].pitch=c.value;
chan[c.chan].freqChanged=true;
break;
}
case DIV_CMD_NOTE_PORTA: {
if (c.chan>3 || parent->song.linearPitch==2) { // PSG, ADPCM-B
int destFreq=NOTE_OPNB(c.chan,c.value2);
bool return2=false;
if (destFreq>chan[c.chan].baseFreq) {
chan[c.chan].baseFreq+=c.value;
if (chan[c.chan].baseFreq>=destFreq) {
chan[c.chan].baseFreq=destFreq;
return2=true;
}
} else {
chan[c.chan].baseFreq-=c.value;
if (chan[c.chan].baseFreq<=destFreq) {
chan[c.chan].baseFreq=destFreq;
return2=true;
}
}
chan[c.chan].freqChanged=true;
if (return2) {
chan[c.chan].inPorta=false;
return 2;
}
break;
}
PLEASE_HELP_ME(chan[c.chan]);
break;
}
case DIV_CMD_SAMPLE_BANK:
sampleBank=c.value;
if (sampleBank>(parent->song.sample.size()/12)) {
sampleBank=parent->song.sample.size()/12;
}
iface.sampleBank=sampleBank;
break;
case DIV_CMD_LEGATO: {
if (c.chan==13 && !chan[c.chan].furnacePCM) break;
chan[c.chan].baseFreq=NOTE_OPNB(c.chan,c.value);
chan[c.chan].freqChanged=true;
break;
}
case DIV_CMD_FM_EXTCH: {
if (extSys) {
extMode=c.value;
immWrite(0x27,extMode?0x40:0);
}
break;
}
case DIV_CMD_FM_LFO: {
rWrite(0x22,(c.value&7)|((c.value>>4)<<3));
break;
}
case DIV_CMD_FM_FB: {
if (c.chan>3) break;
chan[c.chan].state.fb=c.value&7;
rWrite(chanOffs[c.chan]+ADDR_FB_ALG,(chan[c.chan].state.alg&7)|(chan[c.chan].state.fb<<3));
break;
}
case DIV_CMD_FM_MULT: {
if (c.chan>3) break;
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: {
if (c.chan>3) break;
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-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
} else {
rWrite(baseAddr+ADDR_TL,op.tl);
}
break;
}
case DIV_CMD_FM_AR: {
if (c.chan>3) break;
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_RS: {
if (c.value<0) {
for (int i=0; i<4; i++) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
op.rs=c.value2&3;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
}
} else if (c.value<4) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.rs=c.value2&3;
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: {
if (c.value<0) {
for (int i=0; i<4; i++) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
op.am=c.value2&1;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
}
} else if (c.value<4) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.am=c.value2&1;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
}
break;
}
case DIV_CMD_FM_DR: {
if (c.value<0) {
for (int i=0; i<4; i++) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
op.dr=c.value2&31;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
}
} else if (c.value<4) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.dr=c.value2&31;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
rWrite(baseAddr+ADDR_AM_DR,(op.dr&31)|(op.am<<7));
}
break;
}
case DIV_CMD_FM_SL: {
if (c.value<0) {
for (int i=0; i<4; i++) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
op.sl=c.value2&15;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
}
} else if (c.value<4) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.sl=c.value2&15;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
}
break;
}
case DIV_CMD_FM_RR: {
if (c.value<0) {
for (int i=0; i<4; i++) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
op.rr=c.value2&15;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
}
} else if (c.value<4) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.rr=c.value2&15;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
}
break;
}
case DIV_CMD_FM_D2R: {
if (c.value<0) {
for (int i=0; i<4; i++) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
op.d2r=c.value2&31;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
rWrite(baseAddr+ADDR_DT2_D2R,op.d2r&31);
}
} else if (c.value<4) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.d2r=c.value2&31;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
rWrite(baseAddr+ADDR_DT2_D2R,op.d2r&31);
}
break;
}
case DIV_CMD_FM_DT: {
if (c.value<0) {
for (int i=0; i<4; i++) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
op.dt=c.value&7;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
}
} else if (c.value<4) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.dt=c.value2&7;
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
rWrite(baseAddr+ADDR_MULT_DT,(op.mult&15)|(dtTable[op.dt&7]<<4));
}
break;
}
case DIV_CMD_FM_SSG: {
if (c.value<0) {
for (int i=0; i<4; i++) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
op.ssgEnv=8^(c.value2&15);
unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
rWrite(baseAddr+ADDR_SSG,op.ssgEnv&15);
}
} else if (c.value<4) {
DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
op.ssgEnv=8^(c.value2&15);
unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
rWrite(baseAddr+ADDR_SSG,op.ssgEnv&15);
}
break;
}
case DIV_CMD_FM_HARD_RESET:
chan[c.chan].hardReset=c.value;
break;
case DIV_ALWAYS_SET_VOLUME:
return 0;
break;
case DIV_CMD_GET_VOLMAX:
if (c.chan>12) return 255;
if (c.chan>6) return 31;
if (c.chan>3) return 15;
return 127;
break;
case DIV_CMD_PRE_PORTA:
if (c.chan>3) {
if (chan[c.chan].active && c.value2) {
if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_FM));
}
}
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 DivPlatformYM2610::muteChannel(int ch, bool mute) {
isMuted[ch]=mute;
if (ch>12) { // ADPCM-B
immWrite(0x11,isMuted[ch]?0:(chan[ch].pan<<6));
}
if (ch>6) { // ADPCM-A
immWrite(0x108+(ch-7),isMuted[ch]?0:((chan[ch].pan<<6)|chan[ch].vol));
return;
}
if (ch>3) { // PSG
ay->muteChannel(ch-4,mute);
return;
}
// FM
rWrite(chanOffs[ch]+ADDR_LRAF,(isMuted[ch]?0:(chan[ch].pan<<6))|(chan[ch].state.fms&7)|((chan[ch].state.ams&3)<<4));
}
void DivPlatformYM2610::forceIns() {
for (int i=0; i<4; 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-VOL_SCALE_LOG(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);
rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
rWrite(baseAddr+ADDR_SSG,op.ssgEnv&15);
}
rWrite(chanOffs[i]+ADDR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3));
rWrite(chanOffs[i]+ADDR_LRAF,(isMuted[i]?0:(chan[i].pan<<6))|(chan[i].state.fms&7)|((chan[i].state.ams&3)<<4));
if (chan[i].active) {
chan[i].keyOn=true;
chan[i].freqChanged=true;
}
}
for (int i=7; i<14; i++) {
chan[i].insChanged=true;
}
ay->forceIns();
ay->flushWrites();
for (DivRegWrite& i: ay->getRegisterWrites()) {
immWrite(i.addr&15,i.val);
}
ay->getRegisterWrites().clear();
}
void* DivPlatformYM2610::getChanState(int ch) {
return &chan[ch];
}
DivMacroInt* DivPlatformYM2610::getChanMacroInt(int ch) {
if (ch>=4 && ch<7) return ay->getChanMacroInt(ch-4);
return &chan[ch].std;
}
DivDispatchOscBuffer* DivPlatformYM2610::getOscBuffer(int ch) {
return oscBuf[ch];
}
unsigned char* DivPlatformYM2610::getRegisterPool() {
return regPool;
}
int DivPlatformYM2610::getRegisterPoolSize() {
return 512;
}
void DivPlatformYM2610::poke(unsigned int addr, unsigned short val) {
immWrite(addr,val);
}
void DivPlatformYM2610::poke(std::vector<DivRegWrite>& wlist) {
for (DivRegWrite& i: wlist) immWrite(i.addr,i.val);
}
void DivPlatformYM2610::reset() {
while (!writes.empty()) writes.pop_front();
memset(regPool,0,512);
if (dumpWrites) {
addWrite(0xffffffff,0);
}
fm->reset();
for (int i=0; i<14; i++) {
chan[i]=DivPlatformYM2610::Channel();
chan[i].std.setEngine(parent);
}
for (int i=0; i<4; i++) {
chan[i].vol=0x7f;
chan[i].outVol=0x7f;
}
for (int i=4; i<7; i++) {
chan[i].vol=0x0f;
}
for (int i=7; i<13; i++) {
chan[i].vol=0x1f;
}
chan[13].vol=0xff;
for (int i=0; i<512; i++) {
oldWrites[i]=-1;
pendingWrites[i]=-1;
}
lastBusy=60;
sampleBank=0;
delay=0;
extMode=false;
// LFO
immWrite(0x22,0x08);
// PCM volume
immWrite(0x101,0x3f); // A
immWrite(0x1b,0xff); // B
ay->reset();
ay->getRegisterWrites().clear();
ay->flushWrites();
}
bool DivPlatformYM2610::isStereo() {
return true;
}
bool DivPlatformYM2610::keyOffAffectsArp(int ch) {
return (ch>3);
}
void DivPlatformYM2610::notifyInsChange(int ins) {
for (int i=0; i<14; i++) {
if (chan[i].ins==ins) {
chan[i].insChanged=true;
}
}
ay->notifyInsChange(ins);
}
void DivPlatformYM2610::notifyInsDeletion(void* ins) {
ay->notifyInsDeletion(ins);
}
void DivPlatformYM2610::setSkipRegisterWrites(bool value) {
DivDispatch::setSkipRegisterWrites(value);
ay->setSkipRegisterWrites(value);
}
void DivPlatformYM2610::setFlags(unsigned int flags) {
switch (flags&0xff) {
default:
case 0x00:
chipClock=8000000.0;
break;
case 0x01:
chipClock=24167829/3;
break;
}
rate=chipClock/16;
for (int i=0; i<14; i++) {
oscBuf[i]->rate=rate;
}
}
int DivPlatformYM2610::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
DivPlatformYM2610Base::init(p, channels, sugRate, flags);
dumpWrites=false;
skipRegisterWrites=false;
for (int i=0; i<14; i++) {
isMuted[i]=false;
oscBuf[i]=new DivDispatchOscBuffer;
}
fm=new ymfm::ym2610(iface);
setFlags(flags);
// YM2149, 2MHz
ay=new DivPlatformAY8910(true,chipClock,32);
ay->init(p,3,sugRate,16);
ay->toggleRegisterDump(true);
reset();
return 14;
}
void DivPlatformYM2610::quit() {
for (int i=0; i<14; i++) {
delete oscBuf[i];
}
ay->quit();
delete ay;
delete fm;
DivPlatformYM2610Base::quit();
}
DivPlatformYM2610::~DivPlatformYM2610() {
}
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