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Genesis: prioritize DAC writes

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This commit is contained in:
tildearrow 2022-03-14 01:38:11 -05:00
parent e009fc64f2
commit 67d516fcee
3 changed files with 9 additions and 8 deletions
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10
src/engine/platform/genesis.cpp
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@ -92,7 +92,7 @@ void DivPlatformGenesis::acquire_nuked(short* bufL, short* bufR, size_t start, s
DivSample* s=parent->getSample(dacSample);
if (s->samples>0) {
if (!isMuted[5]) {
immWrite(0x2a,(unsigned char)s->data8[dacPos]+0x80);
urgentWrite(0x2a,(unsigned char)s->data8[dacPos]+0x80);
}
if (++dacPos>=s->samples) {
if (s->loopStart>=0 && s->loopStart<=(int)s->samples) {
@ -121,7 +121,7 @@ void DivPlatformGenesis::acquire_nuked(short* bufL, short* bufR, size_t start, s
//printf("write: %x = %.2x\n",w.addr,w.val);
lastBusy=0;
regPool[w.addr&0x1ff]=w.val;
writes.pop();
writes.pop_front();
} else {
lastBusy++;
if (fm.write_busy==0) {
@ -159,7 +159,7 @@ void DivPlatformGenesis::acquire_ymfm(short* bufL, short* bufR, size_t start, si
DivSample* s=parent->getSample(dacSample);
if (s->samples>0) {
if (!isMuted[5]) {
immWrite(0x2a,(unsigned char)s->data8[dacPos]+0x80);
urgentWrite(0x2a,(unsigned char)s->data8[dacPos]+0x80);
}
if (++dacPos>=s->samples) {
if (s->loopStart>=0 && s->loopStart<=(int)s->samples) {
@ -184,7 +184,7 @@ void DivPlatformGenesis::acquire_ymfm(short* bufL, short* bufR, size_t start, si
fm_ymfm->write(0x0+((w.addr>>8)<<1),w.addr);
fm_ymfm->write(0x1+((w.addr>>8)<<1),w.val);
regPool[w.addr&0x1ff]=w.val;
writes.pop();
writes.pop_front();
lastBusy=1;
}
@ -782,7 +782,7 @@ int DivPlatformGenesis::getRegisterPoolSize() {
}
void DivPlatformGenesis::reset() {
while (!writes.empty()) writes.pop();
while (!writes.empty()) writes.pop_front();
memset(regPool,0,512);
if (useYMFM) {
fm_ymfm->reset();