[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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