[Coco] C+ Dos

[Arthur Flexser]

It had some extra commands.  There may be documentation for the various
Disto products, including CDOS in some CoCo archive.  Or CDOS may have been
reviewed in Rainbow or other CoCo magazines.  (I just did a quick google
search but no luck in finding the CDOS command list.)  I do remember there
was a command that would reserve a screen line for a clock display.  CLOCK
ON, maybe.  Designed to work with DIsto's real-time clock in the
controller.  But if DIR doesn't work, you have some other problem.  In
addition to cleaning the edge contacts, you could try reseating the CDOS
ROM in its socket.  (I'm assuming that the plus in C+ DOS indicates it is
somebody's homebrew modification of CDOS, but it might be something else
entirely.)

Art

On Mon, Aug 27, 2018 at 7:09 PM, rietveld rietveld <rietveldh at hotmail.com>
wrote:

> thank you.    Do you kknow what the differences were between standard
> rsdos?
>
> ________________________________
> From: Coco <coco-bounces at maltedmedia.com> on behalf of Arthur Flexser <
> flexser at fiu.edu>
> Sent: August 27, 2018 4:34:31 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] C+ Dos
>
> CDOS was from CRC Systems of Montreal, who are better known for the Disto
> controllers and other hardware
>
> Not compatible with the CoCo 3, (maybe they came out with CDOS-3 later) but
> stuff like DIR and LOADM should work on a CoCo 1/2.  Maybe clean the edge
> connectors?
>
> Art
>
> On Mon, Aug 27, 2018 at 4:28 PM, rietveld rietveld <rietveldh at hotmail.com>
> wrote:
>
> > I just received a disk controller from a member of this list. It just
> > displays a screen of garbage when in my coco3. When I power on my coco1/2
> > with it it simply boots up saying ' C+ DOS'. None of the standard disk
> > commands seem to work; like DIR,LOAD(M) ect
> >
> > Does anyone have info on this DOS
> >
> > Sent from my BlackBerry 10 smartphone.
> >
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