Posted By
Gaia
on 2021-01-12
02:58:47
|  Re: Polish games from 1989-92 dug up after 30+ years
@BKP: thanks a lot for this and your kind words. You see it is not every day that we stumble upon such treasures so obviously we are very enthusiastic! I have tested the ROM and it works great. Is there any documentation on its functions? One peculiarity is that at least in YAPE, the ROM fails to finish the initialization in case you have a 1541 drive attached. Once you remove the 1541, it loads fine.
As I suspected, some of your tunes in Demo1 and Castle Dance appear to use some kind of lookup table for the notes from the DIGIMUZ EPROM, hence it is out of tune if you run them without it. The 'cracked' version of Castle Dance does not work with the EPROM (it jumps to $0408 which is empty) so I guess there was no way to test it properly because few people had the actual extension (it would have crashed with the EPROM attached or would have been out of tune or no sound at all without the EPROM attached).
The original TAP and the 'clean' crack PRG versions you provided above, however, worked flawlessly so I managed to make a video. Here it is with my clumsy gameplay 
http://gaia.atilia.eu/download/Castle%20Dance.avi
I made a beta build available for you to see for yourself here:
http://gaia.atilia.eu/download/YapeDigimuzBeta.zip
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