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prepare for writing register dumps

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This commit is contained in:
tildearrow 2022-01-17 13:29:35 -05:00
parent 871a417e25
commit 8b89f1b516
14 changed files with 47 additions and 35 deletions
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30
src/engine/platform/sms.cpp
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@ -4,6 +4,8 @@
#define FREQ_BASE 1712.0f
#define rWrite(v) {sn->write(v); if (dumpWrites) {addWrite(0,v);} }
void DivPlatformSMS::acquire(short* bufL, short* bufR, size_t start, size_t len) {
sn->sound_stream_update(bufL+start,len);
}
@ -19,7 +21,7 @@ void DivPlatformSMS::tick() {
chan[i].std.next();
if (chan[i].std.hadVol) {
chan[i].outVol=(chan[i].vol*chan[i].std.vol)>>4;
sn->write(0x90|(i<<5)|(isMuted[i]?15:(15-(chan[i].outVol&15))));
rWrite(0x90|(i<<5)|(isMuted[i]?15:(15-(chan[i].outVol&15))));
}
if (chan[i].std.hadArp) {
if (chan[i].std.arpMode) {
@ -46,8 +48,8 @@ void DivPlatformSMS::tick() {
if (chan[i].freqChanged) {
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true);
if (chan[i].note>0x5d) chan[i].freq=0x01;
sn->write(0x80|i<<5|(chan[i].freq&15));
sn->write(chan[i].freq>>4);
rWrite(0x80|i<<5|(chan[i].freq&15));
rWrite(chan[i].freq>>4);
chan[i].freqChanged=false;
}
}
@ -59,13 +61,13 @@ void DivPlatformSMS::tick() {
chan[3].freqChanged=false;
if (snNoiseMode&2) { // take period from channel 3
if (snNoiseMode&1) {
sn->write(0xe7);
rWrite(0xe7);
} else {
sn->write(0xe3);
rWrite(0xe3);
}
sn->write(0xdf);
sn->write(0xc0|(chan[3].freq&15));
sn->write(chan[3].freq>>4);
rWrite(0xdf);
rWrite(0xc0|(chan[3].freq&15));
rWrite(chan[3].freq>>4);
} else { // 3 fixed values
unsigned char value;
if (chan[3].std.hadArp) {
@ -79,7 +81,7 @@ void DivPlatformSMS::tick() {
}
if (value<3) {
value=2-value;
sn->write(0xe0|value|((snNoiseMode&1)<<2));
rWrite(0xe0|value|((snNoiseMode&1)<<2));
}
}
}
@ -92,12 +94,12 @@ int DivPlatformSMS::dispatch(DivCommand c) {
chan[c.chan].freqChanged=true;
chan[c.chan].note=c.value;
chan[c.chan].active=true;
sn->write(0x90|c.chan<<5|(isMuted[c.chan]?15:(15-(chan[c.chan].vol&15))));
rWrite(0x90|c.chan<<5|(isMuted[c.chan]?15:(15-(chan[c.chan].vol&15))));
chan[c.chan].std.init(parent->getIns(chan[c.chan].ins));
break;
case DIV_CMD_NOTE_OFF:
chan[c.chan].active=false;
sn->write(0x9f|c.chan<<5);
rWrite(0x9f|c.chan<<5);
chan[c.chan].std.init(NULL);
break;
case DIV_CMD_INSTRUMENT:
@ -110,7 +112,7 @@ int DivPlatformSMS::dispatch(DivCommand c) {
if (!chan[c.chan].std.hasVol) {
chan[c.chan].outVol=c.value;
}
if (chan[c.chan].active) sn->write(0x90|c.chan<<5|(isMuted[c.chan]?15:(15-(chan[c.chan].vol&15))));
if (chan[c.chan].active) rWrite(0x90|c.chan<<5|(isMuted[c.chan]?15:(15-(chan[c.chan].vol&15))));
}
break;
case DIV_CMD_GET_VOLUME:
@ -169,7 +171,7 @@ int DivPlatformSMS::dispatch(DivCommand c) {
void DivPlatformSMS::muteChannel(int ch, bool mute) {
isMuted[ch]=mute;
if (chan[ch].active) sn->write(0x90|ch<<5|(isMuted[ch]?15:(15-(chan[ch].outVol&15))));
if (chan[ch].active) rWrite(0x90|ch<<5|(isMuted[ch]?15:(15-(chan[ch].outVol&15))));
}
void DivPlatformSMS::reset() {
@ -225,4 +227,4 @@ void DivPlatformSMS::quit() {
}
DivPlatformSMS::~DivPlatformSMS() {
}
}