TASEmulators
[SMS] Buggy audio on Ys (JPN Version)
During the Sega logo intro, there's a screechy/static audio:
https://user-images.githubusercontent.com/24638400/154855382-76c63ae4-35a4-42be-8594-b455dd07055f.mp4
Verified the game on real hardware and it obviously doesn't happen there. It's supposed to be silent.
This fix is terribly wrong! On the SMS/GG/MD PSG chip you CAN update only the low bits of the tone. PSGlib engine does that all the time (vibratoes). Please revert this commit, it adds more issues than what it fixes.
@sverx SMSHawk is currently unmaintained. You seem to be familiar with the hardware, so if you'd like to include other accuracy improvements in your PR, please do so and we'll merge them all.
Does GPGX emulate this correctly? edit: Briefly tried it and didn't hear buzzing so yeah just use that.