[Coco] Question re: Cart slot decode

Steven Hirsch snhirsch at gmail.com
Mon Feb 2 18:47:31 EST 2009


I'm looking for a definitive answer on whether accesses between ff60-ff7e 
are supposed to be decoded by the Multi-Pak and/or slot cartridges.

All the docs seem to indicate that the SCS region is ff40-ff5f and the 
control register for the MP is at ff7f.  So, who owns the in-between 
addresses?

I have a set of PAL equations for the older (large) MP that suggest it 
listens to the entire ff40-ff7f range, but it would be good to get a 
second opinion :-).

Steve




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