Neil Morrison | 1 Feb 01:03 2006

Re: Dual Processors?


You could run a 6309 in the expansion interface and leave the 6809 on the 
keyboard unit. The 6309 could have 1 (or 4) meg of RAM and run at high 
speed.

Neil

----- Original Message ----- 
From: "Leonard Miller" <leonard23@...>

Does this mean that dual processors (6809/6309) would be a possibility?  I'm
sure this has been considered before?  Can os9 be modified to handle dual
processors?

Leonard

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Phill Harvey-Smith | 1 Feb 01:14 2006
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Re: [color computer] Just imagining...

jdaggett@... wrote:
> Phil

James, sorry to be anal about this but the correct spelling of my name
is >>> Phill <<< :)

> Small more modern FPGAs are now approaching the $10 range.  Some of
> the older small FPGAs are still a bit pricy. In comparison single
> unit price of a Spartan 2 15K gate versus a Spartan 3 50K gate is
> virtually even. $10.89 for the older part and $10.10 for the newer
> part. More capacity and not much difference in cost.

Yeah I have often wondered if I should have a play with FPGAs, I have
used some CPLDs, notably the Xilinx XC95xx and XC95xxXL series.

> CPLDs are even still cheaper. The major problem in usig FPGAs and
> CPLDs is most are designed for 3 volt logic levels.  There are still
 > some that have 5 volt tolerent inputs. You can do a lot in some of

I have used the 5v & 3.3v tollerent ones, and they do work well and 
interface with 6809 stuff quite easily :)

The other pain for the home constructor is they are mostly surface 
mount, which is doable but much harder than either PLCC or DIP which can 
be socketed :)

> the CPLDs and small FPGAs like MMUs. UARTS, IDE interface, SPI, PS2
> interface, and even a simple video unit. One approach is to use the
> current 6x09 and three or four CPLDs or a couple of small FPGAs. Or
> use one big FPGA.
(Continue reading)

Phill Harvey-Smith | 1 Feb 01:15 2006
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Re: [color computer] Just imagining...

jdaggett@... wrote:
> The one that interests me the most right now is the multiprocessor appnote.

Yeah I wouldn't mind seeing that too.

Phill.

-- 
Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric !

"You can twist perceptions, but reality won't budge" -- Rush.

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Kevin Diggs | 1 Feb 01:20 2006

Re: [Color Computer] Let me introduce myself

Rod Barnhart wrote:
> Hi Ben! Welcome!
> 
> I've noticed that a lot of people introduce themselves when they sign
> up to the list. I don't recall, but I don't think I ever did that.
> Could be because I'm one of the lurkers of the list. As much as I love
> my CoCo, I don't have a lot of time to get it out of mothballs and
> fire it up. Like a couple of others on this list (or at least one!)
> I've gone back to school after all this time to formalize my computer
> education. Maybe over summer break I'll get a chance to try to find
> out what happened to the biggest part of my CoCo collection.
> 
> Most of my collection went missing some time back. From what I can
> find, I still have a CoCo 3 and a CoCo2. I've got a FD-500 (or 501. I
> can't remember which) with full-height drives, and an FD-502 with
> half-height drives. I've got a dot-matrix printer that is still new in
> the box that I can't remember the model number of. I've also got a
> speech pack, a DC modem (that's is halfway through the conversion to a
> RS-232). I had a CM-8 until it died recently. I've got various mice,
> joysticks, tape drives.
> 
> Missing from my collection is about half a dozen CoCo 2's, two
> grey-case CoCo 1's (one 4K, the other had been upgraded.
> Unfortunately, someone stole the ram back out of it before giving it
> to me), my somewhat extensive collection of Rainbox magazines, several
> CGA monitors that I've used with my tre's, and a CoCo 3 that I had
> done some modifications to (the turbo LED, hacked bit-banger to do
> higher speeds, piggyback 6309, 9-pin d-sub connector for the CGA
> monitors). Unfortunately, I seem to have lost this bunch of stuff at
> some point. I don't remember throwing any of it out, which I'd never
(Continue reading)

Torsten Dittel | 1 Feb 01:36 2006

Re: [Color Computer] Let me introduce myself

> If you are married, could espousa have carried out some diabolical XX
> scheme to separate you from your toys? It appears to be a peculiar
> genetic quirk that the presence of a second X chromosome frequently
> elicits a violent allergic reaction when in the vicinity of vintage
> 8-bit computers. This reaction seems to worsen after said XX chromosomed
> individual has undergone "a marriage ritual".

LOL!
Torsten (married)

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Alan Jones | 1 Feb 02:57 2006
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Compuserve CoCo Sig

Do anyone know if anyone backed up the CoCo Sig software that used to 
exist on Compuserve?
--Alan

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jdaggett | 1 Feb 03:14 2006
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Re: [color computer] Just imagining...

The newest release of Webpack 8.1 now programs all the Spartan2 and 2E, all the Spartan 
3E, the 1 and 1.5 million gate Spartan 3L and up to 1.5 million gate Spartan 3. This in 
addition to all the CPLD lines. There are limits on the Virtex lines of FPGAs but those are a 
really not in homebrew market price range. Some of the Virtex 2 Pro chips push the $2000 
range for a single chip. 

In general the Webpack 8.1 release will do almost everything a  homebrewer needs. Also 
now the Coregen software is apart of the Webpack release along with some of Xilinx's IP 
cores. That is why I can't wait to get my new PC components tomorrow.

Xilinx has combined some of the lincenses now and just offers Webpack and Foundation. 
Some of the functions of the versions between Webpack and Foundation are included in 
Webpack. There is still the EDK developers software that is a chargable license needed. 

james

On 1 Feb 2006 at 0:14, Phill Harvey-Smith wrote:

Date sent:      	Wed, 01 Feb 2006 00:14:55 +0000
From:           	Phill Harvey-Smith <afra@...>
To:             	CoCoList for Color Computer Enthusiasts <coco@...>
Subject:        	Re: [Coco] [color computer] Just imagining...
Send reply to:  	CoCoList for Color Computer Enthusiasts <coco@...>
	<mailto:coco-request@...?subject=unsubscribe>
	<mailto:coco-request@...?subject=subscribe>

> That would be cool, though don't the versions of Webpack to program the 
> denser gatecount chips cost real money ? Though I guess you can 
> illiminate this by using a couple of the smaller chips. Though in some 
> ways that makes the design more complex.
(Continue reading)

Rod Barnhart | 1 Feb 03:09 2006
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Re: [Color Computer] Let me introduce myself

On 1/31/06, Kevin Diggs <kevdig@...> wrote:
> If you are married, could espousa have carried out some diabolical XX
> scheme to separate you from your toys? It appears to be a peculiar
> genetic quirk that the presence of a second X chromosome frequently
> elicits a violent allergic reaction when in the vicinity of vintage
> 8-bit computers. This reaction seems to worsen after said XX chromosomed
> individual has undergone "a marriage ritual".
>
>                                         kevin

That's explains a lot, even beyond the missing CoCos... LOL... My wife
actually understands my obsession with vintage computers. She doesn't
share it, mind you, but she understands. <G>

--
Rod Barnhart aka Wintermute (http://www.nitemarecafe.com)

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Larry Osborne | 1 Feb 03:35 2006
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Re: [color computer] Just imagining...

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@...>
To: "CoCoList for Color Computer Enthusiasts" <coco@...>
Sent: Tuesday, January 31, 2006 11:10 AM
Subject: Re: [Coco] [color computer] Just imagining...

(Continue reading)

Stephen Castello | 1 Feb 03:37 2006
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Re: Compuserve CoCo Sig

On Tue, 31 Jan 2006 20:57:47 -0500, Alan Jones <w8oaj@...> had
a flock of green cheek conures squawk out:

>Do anyone know if anyone backed up the CoCo Sig software that used to 
>exist on Compuserve?
>--Alan

I downloaded from the Coco and OS9 forums near the end of 1997.  I
don't know if I have all the files.  I also have the file listings
captured before I started.

Stephen
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Gmane