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Posted By

Gaia
on 2003-08-27
 Re: Plus4 memory map

What do you mean on RAM-expansion?

You usually bank in the RAM by writing to register $FF3F. Writing to $FF3E banks the ROMs in instead. The plus/4 has memory area that overlaps with the system ROMs between $8000-$FCFF, $FF20-$FF3D and $FF40-$FFFF.



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