As you may ( or may not ) know the xor tables are already just a cheap hack to run the games. We have the encrypted version of the game from the roms and the decrypted version from Razoola, the xor files are just the encrypted xor'd with the decrypted version ( for what reason the decrypted roms aren't just shipped I don't know, supposedly something to do with copyright but legally there is no difference ).

So you recreate the decrypted version ( exactly the way the emulator does at load time ) and then xor it with the encrypted roms for the game that hasn't had it's xor created by razolla and voila you have the xor for it. Which as the region is likely to be controlled by data and not code you shouldn't even have to region hack it.

There is REALLY no new knowledge required to do this.

Whats annoying is that the same techniques that are getting results on system 16 could do the same for cps2, while charles mcdonald has shared everything we haven't had the same cooperation from razoola. Everyone that donated money or boards has only benefited with getting the games playable, the real work of finding out how the hardware works will require the same effort of getting every single board back again.

smf