Re: C128 memory - B series compatibility - Basic using 256k - a new version of the hardware for 256k

From: Mia Magnusson <mia_at_plea.se>
Date: Mon, 7 May 2018 15:42:51 +0200
Message-ID: <20180507154251.000058ed@plea.se>
Den Mon, 7 May 2018 12:46:53 +0000 skrev smf <smf@null.net>:
> According to that there are two unused bits in the mode configuration 
> register. Maybe those could be used to extend to 1mb? Or add another 
> register?

That was what I too suggested :)
 
> Either way it would make sense to latch it when the configuration or 
> preconfiguration registers are written, rather than have it switch 
> immediately.

But since you can relocate zero page and the stack page independent of
all other switching you don't need to care about "pulling away the
floor you are standing on".

> On 07/05/2018 07:33, Jim Brain wrote:
> > I assume you are referring to this doc?
> >
> > ftp://www.zimmers.net/pub/cbm/documents/projects/memory/c128/1028/1028.html 
> >
> > http://www.ktverkko.fi/~msmakela/8bit/memory/memory-c128.pdf
> >
> 



-- 
(\_/) Copy the bunny to your mails to help
(O.o) him achieve world domination.
(> <) Come join the dark side.
/_|_\ We have cookies.
Received on 2018-05-07 16:00:02

Archive generated by hypermail 2.2.0.