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

[Gene Heskett]

On Tuesday 28 April 2015 15:18:02 didier derny wrote:
> Yes nice processor, probably the best 8 bits processor ever made,
> system and user stack, position independent code,
> very easy assembler
> And apparently 2 6809 can run simultaneously
>
> I'm not absolutely sure, but I think in the superpet the 6809 and the
> 6502 can run simultaneously too
>
> The arm is nice too :)  reminds me a 6502 by some side :)

The arm cortex is making waves in the industrial CNC machinery category. 
The BeagleBone Black is now running linuxcnc, in some aspects better 
than the X86 stuff is doing it, making use of the BBB's cluster of 
simple programmable units, 32 of them I believe.  Capable of driving 
stepper motors with a 10 microsecond heartbeat. That is about 2.5x 
faster than I can, and faster than the opto-isolators commonly used to 
isolate the cpu's I/O from being blasted to smitherines by the back emf 
of a higher powered stepper.

If curious, google for "machinekit", its a fork of LinuxCNC.
>
>
> -----Message d'origine-----
> De : Coco [mailto:coco-bounces at maltedmedia.com] De la part de Joe
> Grubbs Envoyé : mardi 28 avril 2015 21:05
> À : CoCoList for Color Computer Enthusiasts
> Objet : Re: [Coco] Kicking the Z-80 butts...
>
> 6809 really is amazing. I learned on Sunday night from Kip and William
> that the 6809 was originally designed with multiprocessing in mind,
> hence another use for the external clock pin of the E version. Kip has
> the schematics for a multi processor 6809 computer in fact
>
>
> --- Original Message ---
>
> From: "Gustavo Ranaur Schoenaker" <ranaur at ranaur.net>
> Sent: April 28, 2015 2:29 PM
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Subject: Re: [Coco] Kicking the Z-80 butts...
>
> Really amazing.
>
> The more I know the 6809 the more I think the problem with the chip
> was no t the processos, but the 6847. Maybe it was the reason Tandy
> made the GIME chip on CoCo 3. Video is really the upper limit of the
> plataform. At those times the video chip make a huge difference.
>
> Nice job Luis!
>
> On Tue, Apr 28, 2015 at 2:34 PM, Gene Heskett <gheskett at wdtv.com> 
wrote:
> > On Tuesday 28 April 2015 09:35:20 Mathieu Chouinard wrote:
> > > speaking of wordstar
> > > I found this last night:
> > > http://wordtsar.ca/
> >
> > Interesting, for wordstar fans.  I've never used it, dynastar yes.
> >
> > > On Tue, Apr 28, 2015 at 9:24 AM, CoCo Demus
> > > <retrocanada76 at gmail.com>
> >
> > wrote:
> > > > That's why MC6809 is the king of 8-bit processors:
> > > >
> > > > https://youtu.be/Ysn7Na60ZGA
> >
> > Thats plumb amazing.
> > [...]
> > Cheers, Gene Heskett
> > --
> > "There are four boxes to be used in defense of liberty:
> >  soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author)
> > Genes Web page <http://geneslinuxbox.net:6309/gene>
> >
> > --
> > Coco mailing list
> > Coco at maltedmedia.com
> > https://pairlist5.pair.net/mailman/listinfo/coco
>
> --
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>
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>