[Coco] WordPak RS/CO80
Arthur Flexser
flexser at fiu.edu
Wed Jan 5 17:32:34 EST 2005
Thanks for that interesting bit of history, Steve. I wonder if that co80 OS-9
module was intended, then, for the sort of system you describe.
And, nice to see you back here after a long absence! I hope things have been
going well for you. Best wishes for the New Year!
Art
On Wed, 5 Jan 2005, Steve Bjork wrote:
> Art,
>
> Way back in the old days of the CoCo 1, (while working at DataSoft) I
> created a 80 Column display for coco software development. It was nothing
> more then a cheap "stand-alone" terminal with output of the coco's serial
> port was tied to it. While the terminal's keyboard could not be used for
> input, the screen could be quickly updated when running at 19,200 baud.
>
> The main use for the terminal was writing Assembly Language code and EDTASM
> was perfect for it. You see, EDTASM user interface was written for
> terminal I/O and it was not hard to patch the code of a pre-release version
> to output to the terminal. (I later patched EDTASM with an On Screen line
> editor (see my SECS), extra long labels and Disk I/O with file includes.)
>
> About this time, Mark Segal (sp?) left DataSoft for Tandy and took the
> technology with him. Soon, Tandy and other Developers were using this
> simple system for their 80 column displays. There was also talk about
> selling a patch cable and drivers through the store or at lease the direct
> order system. All of that was dropped once worked started on the CoCo 3.
>
> Steve 6809er Bjork
>
> At 12:23 AM 1/4/2005 -0500, you wrote:
> >On Mon, 3 Jan 2005, Boisy Pitre wrote:
> >
> > >
> > > There's more than just a base address difference. The co80 driver that
> > > I started with is very simplistic in what it does, and doesn't even
> > > begin to address the complexity that this card has when it comes to
> > > setting up.
> > >
> > > I did dig up something interesting about this driver in one of the
> > > Kissable OS-9 columns in the Rainbow. Puckett was writing about one of
> > > the Microware OS-9 expos in Des Moines, and one of the programmers
> > > talked about the CO80 module being written according to a specification
> > > that Tandy provided them, but with hardware that was in prototype
> > > stage.
> > >
> > > What a mystery...
> > >
> >
> >In that case, my guess would be that Tandy was planning to come out with
> >its own
> >80-column display at the time, and had a driver programmed according to its
> >specs and included with OS-9. Then, that device was scrapped in favor of
> >offering a version of the PBJ WordPak through its Express Order program (or
> >whatever that program was called, where you could get non-RS products at RS
> >stores by special order), and so the co80 driver actually drives no existing
> >device at all. I believe the WordPak-RS originally came with an OS-9 driver
> >on disk, though I'm not 100% certain. Somebody out there surely should have a
> >copy.
> >
> >Art
>
>
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
>
More information about the Coco
mailing list