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  • Joined: 19 Apr 2009
  • Posts: 21
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bios -> game
Post Posted: Fri Jul 09, 2021 8:56 pm
Hello, I'm looking for some info / topics about bios rom to regular game rom conversion (like it's been done for system 1.3 on the bioses page)

thanks:)
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  • Joined: 19 Oct 1999
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  • Location: London
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Post Posted: Sat Jul 10, 2021 12:05 am
All BIOSes contain code to check the slots (card, cartridge, expansion), boot anything they find, or show a message/built in game if not. The patches simply skip over the checking the slots part.
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  • Joined: 19 Apr 2009
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Post Posted: Thu Jul 15, 2021 5:07 pm
ok!
want to share this for system bios 2.4 (Hangon / Safari) :

change string @1C12F
CD00C7 to FFFFFF

now the bios boot as a game cart, if hold up+1+2 on startup is possible to run snail maze (so total of 3 games are playable)
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Post Posted: Thu Jul 15, 2021 6:48 pm
You can find patches to play BIOSes as regular games (and other useful stuff) here: https://github.com/ocornut/meka/blob/master/meka/meka.pat
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