Re: C64 MMU POC

From: silverdr_at_wfmh.org.pl
Date: Mon, 8 Jul 2019 14:45:15 +0200
Message-Id: <E7CA9219-EDF0-43D4-B676-007F18BDD501_at_wfmh.org.pl>
> On 2019-07-08, at 07:27, Jim Brain <brain_at_jbrain.com> wrote:
> 
> I'd like to play around with MMU design on the C64, and wanted to ask for additional thoughts:
> 
> 	• What "page" size would folks recommend?  4K, 8K, 16K?  User defined (much harder to implement, but maybe possible)

4K for code, 8K for gfx comes to mind. Having it selectable (between the two - as opposed to arbitrary size) could be a nice option too.

> 	• Where would be a good spot to put the config registers in the 64 memory map?

There's never a good spot for that kind of things :-) but I'd probably tend to go right behind CIA2.

-- 
SD! 
Received on 2020-05-29 21:45:24

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