[Coco] [Color Computer] The evolution of the Coco..
James Diffendaffer
jdiffendaffer at yahoo.com
Fri Apr 22 17:35:32 EDT 2005
--- In ColorComputer at yahoogroups.com, Mike Pepe <lamune at d...> wrote:
>
>
> James Diffendaffer wrote:
> >
> > The CoCo 1/2's VDG does support the use of an external ROM for it's
> > character set.
>
> Actually that's not true.
Ok, I said it supports it and then you say it's not true and go on to
say it supports it. ???????
I think you misread my message.
>
> The 6847 does support an external character generator. It's fairly
> trivial and only requires a couple of chips in addition to a ROM/EPROM
> containing the new character set.
>
> I think Green Mountain Micro made a little adapter card you stuck in
the
> 6847 socket and gave you real lower case. LowerKit(?) I thought. Maybe
> it's in one of my old Rainbow mags.
>
> > I don't see why someone shouldn't do it. So what if it's slow. If a
> > faster CoCo becomes available in the future if could run fast enough.
> >
>
> I'd like to see a faster CoCo in the future. The stuff Cloud9 is doing
> is impressive but I think it might be in the wrong direction.
>
> The "C-64 on a chip" is probably the better direction to go.
>
> Emulating the CoCo on some CPLD devices releases us from reliance on
the
> old chips and hardware which- while not rare- are no longer in
production.
>
> In addition all these plastic packaged chips in our CoCos are slowly
> degrading. Not sure how long it takes but they're not hermetically
> sealed and will eventually oxidize.
>
> Just my opinion.
>
> -Mike
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