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brunodea / gebemula

Emulator for GameBoy written in Rust.
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Implement HALT bug? #2

Open brunodea opened 8 years ago

brunodea commented 8 years ago

On page 20 of the GB manual one can read:

The instruction immediately following the HALT instruction is "skipped" when interrupts are disabled (DI).

I believe that the emulator works well without implementing this. However, some games may take advatange of this bug, so it would be interesting to implement it for testing purposes.

vitords commented 8 years ago

Would be fun to test it out, but not a primary concern right now.

brunodea commented 8 years ago

Yeah, if we do this now we could forget about it and leave the bug there. So I'll just leave this issue here for reminding us in the future.