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Thread: Byte swapping files on EPROMs?

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    ToeJam is a wiener Hero of Algol Guntz's Avatar
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    Default Byte swapping files on EPROMs?

    I'm gonna get some Genesis games put on EPROMs at some point. Does anybody here know if the ROM files have to be byte swapped before being burned?

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    The Best Genesis Master of Shinobi GohanX's Avatar
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    I know nothing about doing Genesis repros, but I found this:

    Genesis ROMs don't have headers that you have to remove like SNES or NES ROMs do. The only thing you have to do is a 'swap byte' before you burn (this function should be in your programmer's software).
    So... I guess? I actually just ordered a eprom programmer to do some Famicom/NES repros, and eventually want to do Genesis stuff as well. I could probably be more help once I get it in and figure out how to use it.
    Quote Originally Posted by CMA Death Adder
    Recently I sold the majority of my 32X games for a measly 18 bucks. With it, I bought some tacos. Definitely a more pleasing choice.

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    ToeJam is a wiener Hero of Algol Guntz's Avatar
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    That's enough for me, I remember seeing that post elsewhere. I'll have my Genesis binaries byte swapped. Thanks!

    Also... Does anyone know if a Sega CD BIOS binary has to be burned in a particular way?

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    Yes you need to byteswap your code. Most decent programmer GUI's have this option.

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    Easiest way to tell would be to desolder a genesis maskrom and dump it.

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