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d_m72: clear dac when not being written to, fixes distortion in second-to-last level of mr.heli, also applies to end of level1 in air duel

This commit is contained in:
dinkc64 2015-04-24 06:28:44 +00:00
parent f0884afda1
commit b28adf2f1f
1 changed files with 6 additions and 3 deletions
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9
src/burn/drv/irem/d_m72.cpp
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@ -2123,10 +2123,13 @@ static INT32 DrvFrame()
if (DrvSndROM[sample_address]) {
DACSignedWrite(0, DrvSndROM[sample_address]);
sample_address = (sample_address + 1) & 0x3ffff;
if (!DrvSndROM[sample_address]) {
DACWrite(0, 0); // Clear DAC output buffer at end of sample - fixes distortion in Air Duel
}
//if (!DrvSndROM[sample_address]) {
// DACWrite(0, 0); // Clear DAC output buffer at end of sample - fixes distortion in Air Duel
//}
} else {
DACWrite(0, 0); // Clear DAC output buffer at end of sample - fixes distortion in Air Duel & second-to-last level of Mr. Heli
}
} else if (z80_nmi_enable == Z80_REAL_NMI) {
ZetNmi();
}