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PostPosted: Fri Aug 05, 2016 6:47 pm 
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Reply to Edizius

Space Invaders for Game Boy has an option to send a native Super NES version of the game to the RAM of the Super NES by copying 4K chunks of code through the Super Game Boy's video output. But only games that completely fit into RAM can be started using the Space Invaders method. This doesn't include any full-size commercial Super NES game that I'm aware of, as I don't think Nintendo made Super NES cartridges smaller than 256K.


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PostPosted: Fri Aug 05, 2016 6:56 pm 
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Your own SNES code that you start executing could keep downloading more code periodically from the Game Boy cart, the same way the BIOS does it. But it would be a pretty miserable way to ship an SNES game and probably not a very fun experience.


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PostPosted: Fri Aug 05, 2016 7:02 pm 
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I suppose there's the dubious advantage that you get four more voices of polyphony (right?), even if the game boy's PSG is extremely incongruous with the SNES's wavetable synth.


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PostPosted: Fri Aug 05, 2016 9:18 pm 
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tepples wrote:
as I don't think Nintendo made Super NES cartridges smaller than 256K

It would have to be smaller than 128K, not 256K.


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PostPosted: Sat Aug 06, 2016 4:34 am 
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As for 128K vs. 256K, I figured that if most of audio RAM and VRAM are constant throughout execution, those could be sent first. So maybe 208K might be more realistic.


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PostPosted: Sat Aug 06, 2016 12:04 pm 
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Oh, whoops, I missed that bit from the previous topic. Figured you were thinking of the SuperDisc's 256K or something.


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