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APU regression fix

This commit is contained in:
Lior Halphon 2021-10-07 18:25:54 +03:00
parent d1caeafe5e
commit ef053ff113
1 changed files with 2 additions and 2 deletions
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4
Core/apu.c
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@ -1170,7 +1170,7 @@ void GB_apu_write(GB_gameboy_t *gb, uint8_t reg, uint8_t value)
case GB_IO_NR34: case GB_IO_NR34:
gb->apu.wave_channel.sample_length &= 0xFF; gb->apu.wave_channel.sample_length &= 0xFF;
gb->apu.wave_channel.sample_length |= (value & 7) << 8; gb->apu.wave_channel.sample_length |= (value & 7) << 8;
if ((value & 0x80) && gb->apu.wave_channel.enable) { if (value & 0x80) {
/* DMG bug: wave RAM gets corrupted if the channel is retriggerred 1 cycle before the APU /* DMG bug: wave RAM gets corrupted if the channel is retriggerred 1 cycle before the APU
reads from it. */ reads from it. */
if (!GB_is_cgb(gb) && if (!GB_is_cgb(gb) &&
@ -1199,7 +1199,7 @@ void GB_apu_write(GB_gameboy_t *gb, uint8_t reg, uint8_t value)
8); 8);
} }
} }
if (!gb->apu.is_active[GB_WAVE]) { if (!gb->apu.is_active[GB_WAVE] && gb->apu.wave_channel.enable) {
gb->apu.is_active[GB_WAVE] = true; gb->apu.is_active[GB_WAVE] = true;
update_sample(gb, GB_WAVE, update_sample(gb, GB_WAVE,
gb->apu.wave_channel.current_sample >> gb->apu.wave_channel.shift, gb->apu.wave_channel.current_sample >> gb->apu.wave_channel.shift,