Re: C64 MMU POC

From: Kajtár Zsolt <*soci_at_c64.rulez.org*> Date: Mon, 23 Sep 2019 07:30:44 +0200 Message-ID: <f0c3eccb-ab22-1f27-ca6c-8f0cd3bf23a7_at_c64.rulez.org> · soci_at_c64.rulez.org

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> As I look at the MMU PLA mappings, it seems like the following 
> combinations will be prevalent:
> 
> * ROMs banked in, IO banked in, so $cxxx is a good choice
> 
> * ROMs out, IO in, so $cxxx is good, and so if $fxxx
> 
> *All RAM, in which case $fxxx is best.

Put them in RAM space and make it mappable just like any page. The knock
sequence would just change alter the map so it becomes accessible. To make
it complicated it's location could be part of the sequence.

- -- 
						    -soci-
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