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VGM export: fix noise in Neo Geo

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This commit is contained in:
tildearrow 2022-01-24 02:57:49 -05:00
parent 066f0f074f
commit ea796c2d6b
2 changed files with 9 additions and 2 deletions
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10
src/engine/platform/ym2610.cpp
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@ -70,7 +70,8 @@ void DivPlatformYM2610::tick() {
} }
} }
if (chan[i].std.hadDuty) { if (chan[i].std.hadDuty) {
rWrite(0x06,31-chan[i].std.duty); ayNoiseFreq=31-chan[i].std.duty;
rWrite(0x06,ayNoiseFreq);
} }
if (chan[i].std.hadWave) { if (chan[i].std.hadWave) {
chan[i].psgMode=(chan[i].std.wave+1)&7; chan[i].psgMode=(chan[i].std.wave+1)&7;
@ -477,7 +478,8 @@ int DivPlatformYM2610::dispatch(DivCommand c) {
break; break;
case DIV_CMD_STD_NOISE_FREQ: case DIV_CMD_STD_NOISE_FREQ:
if (c.chan<4 || c.chan>6) break; if (c.chan<4 || c.chan>6) break;
rWrite(0x06,31-c.value); ayNoiseFreq=31-c.value;
rWrite(0x06,ayNoiseFreq);
break; break;
case DIV_CMD_AY_ENVELOPE_SET: case DIV_CMD_AY_ENVELOPE_SET:
if (c.chan<4 || c.chan>6) break; if (c.chan<4 || c.chan>6) break;
@ -600,11 +602,15 @@ void DivPlatformYM2610::reset() {
ayEnvMode=0; ayEnvMode=0;
ayEnvSlide=0; ayEnvSlide=0;
ayEnvSlideLow=0; ayEnvSlideLow=0;
ayNoiseFreq=0;
delay=0; delay=0;
extMode=false; extMode=false;
// AY noise
immWrite(0x06,ayNoiseFreq);
// LFO // LFO
immWrite(0x22,0x08); immWrite(0x22,0x08);

1
src/engine/platform/ym2610.h
View file

@ -47,6 +47,7 @@ class DivPlatformYM2610: public DivDispatch {
int dacRate; int dacRate;
int dacPos; int dacPos;
int dacSample; int dacSample;
int ayNoiseFreq;
unsigned char sampleBank; unsigned char sampleBank;
int delay; int delay;