[Coco] [color computer] Just imagining...

[Larry Osborne]

There was one written IIRC.  It was OS-9 Level 3 for the GIMMIX 3 Computer. 
It was often advertised in old Rainbows.

Gimmix OS-9 Level One was essentially what you see with a CoCo 1 or 2 (64K) 
but with better hardware and IO support.

Gimmix OS-9 Level Two was essentially what you see with a CoCo 3 (More 
Memory than the 6809 could address directly with 4K blocks rather than 8K 
blocks as in the CoCo3) with much better hardware support for the IO 
especially.

Gimmix OS-9 Level Three had no CoCo equivalent at all; rather you had 
several (2 3 ?) 6809's again with much better internal and IO support.  If 
you can find someone who has an old one (esp if it is still working) you 
might be able to see how the software handled it.  I suspect though that the 
internal hardware was probably the most important item in making it work 
with the software along but barely aware of it as I don't see how a 6809 
could possibly function with another 6809 any one circuit.  I would imagine 
that Memory Management kept the 6809's from interacting directly in any way.

If my memory is in error my apologies.

Larry Osborne


----- Original Message ----- 
From: <jdaggett at gate.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Tuesday, January 31, 2006 11:10 AM
Subject: Re: [Coco] [color computer] Just imagining...


> Mike
>
> That setup will run no faster than one 6309, unless you rewrite the OS to
> handle multiprocessors.
>
> Nice idea of using multiple processors. Currently there is no OS to 
> support
> multiple 6x09 processors that I know of.  If one did exist then  splitting 
> taks
> up between them would be nice.
>
> Then I could put three 6809 cores into one 1 million gate FPGA and  have a
> real nice system running at about 20 MHz to 30 MHz.
>
> james
>
>
> On 31 Jan 2006 at 10:48, Mike Pepe wrote:
>
> Date sent:      Tue, 31 Jan 2006 10:48:17 -0500
> From:           Mike Pepe <lamune at doki-doki.net>
> To:             CoCoList for Color Computer Enthusiasts 
> <coco at maltedmedia.com>
> Subject:        Re: [Coco] [color computer] Just imagining...
> Send reply to:  CoCoList for Color Computer Enthusiasts 
> <coco at maltedmedia.com>
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>
>> That's an interesting idea, but my vision would be kind of different.
>>
>> Expanding the CoCo 3 is great, but overall seems kind of pointless to
>> me. They're not rare, and we have to deal with lots of inherent 
>> limitations.
>>
>> I'm kind of kicking around a design that incorporates 3 6309 cpu's
>> running at 3.58MHz and a VGA-resolution framebuffer. Imagine that sucker
>> running Nitros9.
>>
>> would be nice to have time to prototype something like that.
>>
>> -Mike
>
>
>
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