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ITotalJustice / TotalSMS

Sega Master System emulator
https://itotaljustice.github.io/TotalSMS/
MIT License
23 stars 3 forks source link

Spiderman - black screen #6

Open ITotalJustice opened 3 years ago

ITotalJustice commented 3 years ago

found a fix. so apparently, the vdp constantly asserts the irq if a frame_interrupt is pending. as this only gets reset when read from status, this means multiple irq can be handled due to the same vblank

ITotalJustice commented 3 years ago

found a fix. so apparently, the vdp constantly asserts the irq if a frame_interrupt is pending. as this only gets reset when read from status, this means multiple irq can be handled due to the same vblank

well this breaks sonic 1 by having the audio run too fast...