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Re: Is it possible to play NES roms on a Snes Copier?

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This message was posted by Agent X, posted on December 15, 2000 at 06:35:04 coming from 194.205.77
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This message is a reply to Re: Is it possible to play NES roms on a Snes Copier? posted from mikael posted at December 14, 2000 at 18:00:24
> Yeah, those were hacked ROMS that were modified to be played on SNES hardware, thanks to the 6502 compatible 65816 CPU.

> I'd love to have a NES/Famicom back-up unit that could play every ROM that exists (maybe with a few exceptions with ROMs that have special chips) but the damn thing are the mappers. I don't even understand what they are. Can anyone explain? :)

> mikael

Yeah, there were about 20 roms done by Anthrox. They were using this 'compatibility mode' of the SNES. They don't have any sound, and the graphics are a bit wafted in places. They are prefixed AS in GOODSNES and in their filenames.

On the subject of 'mappers', I think that they are the way that the processor addresses memory, since you have to mess around with banking in order to access more than 64k on 6502.

I think that the new 'mappers' were introduced to give access to larger and larger address ranges (and to keep the pirates on their toes). The gameboy has a similar thing (MC3, MC5 etc.) which is why certain Roms won't work on a Bung MGD3 cart.

Hope this helps

Agent X

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Message	> > Yeah, those were hacked ROMS that were modified to be played on SNES hardware, thanks to the 6502 compatible 65816 CPU. > > I'd love to have a NES/Famicom back-up unit that could play every ROM that exists (maybe with a few exceptions with ROMs that have special chips) but the damn thing are the mappers. I don't even understand what they are. Can anyone explain? :) > > mikael > Yeah, there were about 20 roms done by Anthrox. They were using this 'compatibility mode' of the SNES. They don't have any sound, and the graphics are a bit wafted in places. They are prefixed AS in GOODSNES and in their filenames. > On the subject of 'mappers', I think that they are the way that the processor addresses memory, since you have to mess around with banking in order to access more than 64k on 6502. > I think that the new 'mappers' were introduced to give access to larger and larger address ranges (and to keep the pirates on their toes). The gameboy has a similar thing (MC3, MC5 etc.) which is why certain Roms won't work on a Bung MGD3 cart. > Hope this helps > Agent X
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