[Coco] 26-3022 disk interface question

Barry Nelson barry.nelson at amobiledevice.com
Fri Jun 12 01:30:15 EDT 2015


Except that I am pretty sure it was mentioned in an earlier post that this is a 16k CoCo 2. If it had 64k of ram then that would work.

On Jun 12, 2015, at 1:18 AM, coco-request at maltedmedia.com wrote:

> Date: Thu, 11 Jun 2015 17:49:51 -0400
> From: Arthur Flexser <flexser at fiu.edu>
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> Subject: Re: [Coco] 26-3022 disk interface question
> Message-ID:
> 	<CA+LuDccPTQTkgODeXZWFv9OtmYnO4BGCzanwNBZzS2NK3yBM9Q at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
> 
> Sure, you can't just load it in from cassette to the $8000 address it is
> supposed to occupy.  But a cassette program could readily be written to
> copy the Color Basic ROM to RAM, then copy the Extended Basic code to RAM
> at $8000 (after loading a copy in from cassette to some lower address), and
> then simulate a cold start into Extended Basic.  Probably not worth the
> trouble to do so, though, since an adapter plus an EPROM, or an original
> Extended Basic ROM, would do the job so much better.
> 
> I recall doing something similar with Disk Basic when I still had a
> cassette system, just out of curiosity rather than for any practical
> benefit of having Disk Basic commands available with no controller or disk
> drive for them to act on.
> 
> Art

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