[Coco] 6309 microprocessor project 01-28-2004

[Roger Taylor]

I am still wondering if anything was ever written and is being used by the 
CoCo community that uses the NoCan memory board.  Back when Paul first came 
out with this awesome board, I was seriously interested in writing stuff 
that used the memory, but it looks like since the board requires you to 
butcher the CoCo slightly, that it may never catch on.  I was really 
looking forward to that thing booming.  Think of all the stuff you could 
have loaded into OS-9 at the same time.

 From looking at the specs on his site, you might be in for a job trying to 
emulate that thing, but what's worse is that I don't know of any software 
that uses it besides maybe OS-9.



At 11:10 AM 1/28/2004 -0500, you wrote:
>6309 microprocessor project:
>
>Hello,
>
>I am working in the memory part of the program, and I added support $FF7F
>Multi-Pak Interface Register.
>There are four slots and each slot can be either 16K or 32K external rom.
>Of course this means that now
>I am supporting (Paul T. Barton's NoCan 16MB Interface.)  Instead of the MMU
>extension registers being
>located at $FF70-$FF7F they are now located at the NoCan locations
>$FF80-$FF8F.
>
>I would also like to add support for banked switch 16K or 32K rom
>cartridges.  I not sure how to do this,
>but I have eight 16K banks and eight 32K banks.  I think I'll need a flag to
>let me know this is a banked
>switched rom and monitor $FF40 FDC register for any write page number
>requests.
>
>
>John Collyer
>
>
>--
>Coco mailing list
>Coco at maltedmedia.com
>http://five.pairlist.net/mailman/listinfo/coco


----------
Roger Taylor