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Donkey Kong graphical glitches #3

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Senryoku opened this issue Nov 5, 2015 · 1 comment

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bug

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Senryoku commented Nov 5, 2015

Following #1:
There is still some weird things going on:

On startup, random tiles are displayed.
At the end of every level, the bottom of the screen turns white (IIRC, the game sets LYC == 0x8F or something, maybe this is related? (I don't remember if it uses LYC interrupts or checks the bit in LCDSTAT))

Senryoku added the bug label

Owner Author

Senryoku commented Nov 30, 2015

Messing with the VBlank interrupt timing changed the issue.
There is definitely something fishy about the handling of interrupts...

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