[Coco] Help on Breaking the 64KB Barrier on the Coco 2

[Kip Koon]

Tom,

I would definitely like to know all about that memory expansion.  Thanks.

Kip


-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of Tom Seagrove
Sent: Thursday, July 19, 2012 1:54 PM
To: CoCoList for Color Computer Enthusiasts
Cc: coco at maltedmedia.com
Subject: Re: [Coco] Help on Breaking the 64KB Barrier on the Coco 2


I have some sort of expansion for a CoCo2 somewhere boxed up.  I will have
to dig it out and pass on more information....

On Jul 18, 2012, at 9:56 PM, RJRTTY at aol.com wrote:

> 
> In a message dated 7/18/2012 5:16:19 A.M. Eastern Daylight Time, 
> computerdoc at sc.rr.com writes:
> 
> Hello  All,
> 
> 
> 
> Is there a memory expansion upgrade available for the 64KB  Coco 2?  
> I'd like to go beyond the 64KB barrier. I'd want it to be  compatible 
> with NitrOS-9 Level II.  I read somewhere on the internet  that a 
> different memory management scheme had been created for the COCO 1  & 
> 2 that had a driver
> written for OS-9 that used some type of bank  switching scheme.   Any
> thoughts?
> 
> 
> 
> Kip
> 
> 
> 
> 
> 
> Hello all,
>     I have just finished working on an expansion  upgrade for my  coco 1
> which I designed and built in 1985 to be used as a ram drive.    It opens
up
> a page sized window (256 bytes)  anywhere in memory dynamically.
> I haven't written any OS9 software for it but I plan to.   If  anybody is 
> interested
> I will try to take some pictures and post some schematics for it.
> 
> If interest is great enough I may consider making and selling the 
> thing....
> 
> Roy
> 
> 
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco

--
Coco mailing list
Coco at maltedmedia.com
http://five.pairlist.net/mailman/listinfo/coco