Category: ROMs and Emulators

For example, cpu_instrsfreezes on MGB and SGB2 devices and emulators emulating them correctly. I find it shocking that I seem to be the first one who has noticed this. I’m pretty sure the test would pass if it wouldn’t freeze, but this is a clear oversight and things like this could mask real differences between models. Even though many test ROMs exist, I strongly recommend serious emulator developers to write their own tests as well. I believe in independent verification, so having multiple people implement tests independently should give us more confidence that our collective knowledge is correct.

We’ve been confused for a very long time, a wide number of sources say different things, so we went to Nintendo themselves to clear it all up for us retro gamers. And Imran’s emulator is a bad source for looking up how the opcodes work, because his emulator still has many problems with getting the opcodes right. [...]