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T6W28: finish it up (mostly)

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This commit is contained in:
tildearrow 2022-10-12 04:05:09 -05:00
parent 88444e6f59
commit 843d18290d
5 changed files with 46 additions and 16 deletions
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43
src/engine/platform/t6w28.cpp
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@ -25,8 +25,6 @@
//#define rWrite(a,v) pendingWrites[a]=v;
#define rWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); if (dumpWrites) {addWrite(a,v);} }
#define CHIP_DIVIDER 16
const char* regCheatSheetT6W28[]={
"Data0", "0",
"Data1", "1",
@ -72,14 +70,21 @@ void DivPlatformT6W28::acquire(short* bufL, short* bufR, size_t start, size_t le
}
void DivPlatformT6W28::writeOutVol(int ch) {
int left=15-CLAMP(chan[ch].outVol+chan[ch].panL-15,0,15);
int right=15-CLAMP(chan[ch].outVol+chan[ch].panR-15,0,15);
rWrite(0,0x90|(ch<<5)|(isMuted[ch]?15:left));
rWrite(1,0x90|(ch<<5)|(isMuted[ch]?15:right));
if (chan[ch].active) {
int left=15-CLAMP(chan[ch].outVol+chan[ch].panL-15,0,15);
int right=15-CLAMP(chan[ch].outVol+chan[ch].panR-15,0,15);
rWrite(0,0x90|(ch<<5)|(isMuted[ch]?15:left));
rWrite(1,0x90|(ch<<5)|(isMuted[ch]?15:right));
} else {
rWrite(0,0x9f|(ch<<5));
rWrite(1,0x9f|(ch<<5));
}
}
void DivPlatformT6W28::tick(bool sysTick) {
for (int i=0; i<4; i++) {
double CHIP_DIVIDER=16;
if (i==3) CHIP_DIVIDER=15;
chan[i].std.next();
if (chan[i].std.vol.had) {
chan[i].outVol=VOL_SCALE_LOG(chan[i].vol&15,MIN(15,chan[i].std.vol.val),15);
@ -91,6 +96,12 @@ void DivPlatformT6W28::tick(bool sysTick) {
}
chan[i].freqChanged=true;
}
if (i==3 && chan[i].std.duty.had) {
if (chan[i].duty!=chan[i].std.duty.val) {
chan[i].duty=chan[i].std.duty.val&7;
rWrite(1,0xe0+chan[i].duty);
}
}
if (chan[i].std.panL.had) {
chan[i].panL=chan[i].std.panL.val&15;
}
@ -109,12 +120,13 @@ void DivPlatformT6W28::tick(bool sysTick) {
}
chan[i].freqChanged=true;
}
if (chan[i].std.phaseReset.had) {
rWrite(1,0xe0+chan[i].duty);
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
//DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_PCE);
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER);
if (chan[i].freq>1023) chan[i].freq=1023;
if (i==3) {
rWrite(1,0xe7);
rWrite(1,0x80|(2<<5)|(chan[3].freq&15));
rWrite(1,chan[3].freq>>4);
} else {
@ -129,6 +141,8 @@ void DivPlatformT6W28::tick(bool sysTick) {
}
int DivPlatformT6W28::dispatch(DivCommand c) {
double CHIP_DIVIDER=16;
if (c.chan==3) CHIP_DIVIDER=15;
switch (c.cmd) {
case DIV_CMD_NOTE_ON: {
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_PCE);
@ -142,6 +156,7 @@ int DivPlatformT6W28::dispatch(DivCommand c) {
chan[c.chan].macroInit(ins);
if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
chan[c.chan].outVol=chan[c.chan].vol;
writeOutVol(c.chan);
}
chan[c.chan].insChanged=false;
break;
@ -150,6 +165,7 @@ int DivPlatformT6W28::dispatch(DivCommand c) {
chan[c.chan].active=false;
chan[c.chan].keyOff=true;
chan[c.chan].macroInit(NULL);
writeOutVol(c.chan);
break;
case DIV_CMD_NOTE_OFF_ENV:
case DIV_CMD_ENV_RELEASE:
@ -166,8 +182,7 @@ int DivPlatformT6W28::dispatch(DivCommand c) {
chan[c.chan].vol=c.value;
if (!chan[c.chan].std.vol.has) {
chan[c.chan].outVol=c.value;
if (chan[c.chan].active) {
}
writeOutVol(c.chan);
}
}
break;
@ -205,7 +220,9 @@ int DivPlatformT6W28::dispatch(DivCommand c) {
break;
}
case DIV_CMD_STD_NOISE_MODE:
chan[c.chan].noise=c.value;
if (c.chan!=3) break;
chan[c.chan].duty=(((c.value&15)==1)?4:0)|((c.value>>4)&3);
rWrite(1,0xe0+chan[c.chan].duty);
break;
case DIV_CMD_PANNING: {
chan[c.chan].panL=c.value>>4;
@ -226,7 +243,7 @@ int DivPlatformT6W28::dispatch(DivCommand c) {
chan[c.chan].inPorta=c.value;
break;
case DIV_CMD_GET_VOLMAX:
return 31;
return 15;
break;
case DIV_ALWAYS_SET_VOLUME:
return 1;
@ -289,6 +306,8 @@ void DivPlatformT6W28::reset() {
cycles=0;
curChan=-1;
delay=0;
// default noise mode
rWrite(1,0xe7);
}
bool DivPlatformT6W28::isStereo() {