[Coco] 1mb and 2mb memory upgrades

Brian Blake random.rodder at gmail.com
Fri Mar 13 14:16:15 EDT 2015


Smarter people than me are going to have to answer that one, Luis.

I only know he made it and it worked.

------------------
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On Mar 13, 2015 2:14 PM, "Luis Antoniosi (CoCoDemus)" <
retrocanada76 at gmail.com> wrote:

> But how is it paged ? Since each page is 8K, the original coco3 uses only 6
> bits for the MMU register.
>
> One thing is putting 8MB other thing is making the 8MB full available for
> OS-9 to run any app without modifications.
>
>
> Luis Felipe Antoniosi
>
>
>
> On Fri, Mar 13, 2015 at 1:58 PM, Brian Blake <random.rodder at gmail.com>
> wrote:
>
> > On 3/13/2015 1:47 PM, Brian Blake wrote:
> >
> >> On 3/13/2015 1:46 PM, Luis Antoniosi (CoCoDemus) wrote:
> >>
> >>> 2MB is the maximum you can use in the MMU registers: 256 x 8K
> >>>
> >>> Luis Felipe Antoniosi
> >>>
> >>>
> >> Someone forgot to tell that to Paul Barton....
> >>
> >>
> > For example...: http://www.reocities.com/idezilla/CoCoZilla/8mb.html
> >
> >
> >
> >
> > --
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> >
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