Byte swapping files on EPROMs?

[Guntz]

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?

[GohanX]

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.

[Guntz]

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?

[nintendo2600]

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

[Drakon]

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