HDMA should not start during HBLANK. Fixes Donkey Kong Country.

PocketSprite / 8bkc-gnuboy

Gnuboy port to the PocketSprite

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HDMA should not start during HBLANK. Fixes Donkey Kong Country. #9

Open gameblabla opened 5 years ago

gameblabla commented 5 years ago

So while i was working on my own Gnuboy fork and tried to merge an upstream fix for Killer Instinct, i broke DKC. After some testing, i've found that disabling this exact line fixed the game while still allowing Killer Instinct & Extreme Ghostbusters to work. Upstream also had a note with it basically saying that it was probably not needed... really.

As soon as it was disabled, Donkey Kong Country started to work without glitchy graphics ingame.

Cralex commented 5 years ago

I compiled this and I can confirm that it fixed the problem on real hardware. No regressions noticed yet.