Zitat von
hap
Ok, I think I can fix the problem, give me a few minutes before I upload the source.
Yep, now the keys are working correctly again - you're a genius!
BTW, this older model IM-01 seems to have also different functions - e.g. the Takeback key only displays "0000", but doesn't take back any moves!?
I've not yet found what this key is good for in the IM-01.
But that's not a problem of the MAME emulation, the Russian emulator also shows the same behaviour.