The Spiral Techdemo bugs

[Red2010]

Let's see... I was recently testing some technical demos for the Mega Drive...
The thing is, this one (The Spiral) just can't be completed...

• There's an audio bug starting from the third demo (the one with a rotating globe). When this part of the demo starts, there's a loud noise in the emulator and the music stops.

• Softlock... apparently the music is interfering with the code, so from this point on, the game can't progress any further.

[Clownacy]

Thanks for finding this. This demo is open-source, which is really helpful.

[Clownacy]

As of 4c43003, this tech demo seems to be working almost perfectly; there is just some garbage audio at the very end, which I imagine is caused by the lack of certain Z80 stalls (#26).