[Coco] [SPAM] Kicking the Z-80 butts...

[Zippster]

That’s very interesting.  Are there any schematics out there showing exactly how the
second 6809 was used for the display?  Was it used along with some other components
to create a sort of 6809 based GPU?

- Ed


> On Apr 30, 2015, at 11:05 AM, <davidlinsley at gmail.com> <davidlinsley at gmail.com> wrote:
> 
> IIRC the Dragon "Beta" was dual 6809, but never made it out of prototype. However it is supported in Mess and has OS9 available for it, though again IIRC the second 6809 was for the display.
> 
> -----Original Message-----
> From: "Brian Blake" <random.rodder at gmail.com>
> Sent: ‎4/‎29/‎2015 10:19 AM
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Subject: Re: [Coco] [SPAM]  Kicking the Z-80 butts...
> 
> On 4/29/2015 12:26 PM, Zippster wrote:
>> Lol… Me too!   :)
>> 
>> Time for someone to design a Dual 6809 motherboard?
>> 
>> - Ed
>> 
>> 
> 
> Little bit OT....
> 
> Someone has done some work in that direction with ideas: 
> http://users.axess.com/twilight/sock/cocofile/coco4.html
> Sock Master created this page throwing thoughts towards a CoCo4 (please 
> lets not erupt into that discussion again), but, had some pretty neat 
> ideas including a 3 CPU motherboard.
> 
> But he also created an accelerator card for a 4MHz CoCo3: 
> http://users.axess.com/twilight/sock/4mhzproj.html
> 
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