On Monday 29 January 2001 12:20, you wrote:
> I didn't follow the whole discussion about the ROM format, but perhaps
> it is a good idea to use 'masks' for emulating the 'sensitive' addresses
> in ROM/RAM mappers. In most cases, the hardware only checks certain bits
> of the address and not all of them.
That's a good idea and it's already part of the standard. ;)
Register[5000/07FF]=4000 indicates writes to 5000-57FF switch the bank that
starts at 4000 (07FF is an inverted mask).
Bye,
Maarten
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