Zitat von
Mychess
After disassembling and tracing the code with mame, the bug :
- modify byte at address $0008, but this byte is resetting to FF before its normal use.
- create a piece-square table with a constant value because it is not saved in $0408 but $0008.
Interesting insight - thanks!
So I hope nobody has used this Playmatic S in any serious tournament in the past, because with this wrong PST it certainly has played completely differently from the original device.
Regards,
Franz