[Coco] Arduino question

Mark Marlette mmarlette at frontiernet.net
Wed Oct 5 11:59:07 EDT 2011

Several years ago, at one the the ChicagoFests, I met a guy that was attempting to use the AVR platform to emulate the 6809.

Not sure what happened to this as I haven't seen him there again.

Chris Hawks worked for him or at the same company.


I am very verse in the AVR platform have many of the dev kits and tools. It is a blast!



----- Original Message -----
From: "gene heskett" <gheskett at wdtv.com>
To: jdagget at gate.net
Cc: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Wednesday, October 5, 2011 10:52:51 AM
Subject: Re: [Coco] Arduino question

On Wednesday, October 05, 2011 11:51:52 AM jdagget at gate.net did opine:

And your account at gate.net is refusing my messages, James.

> Gene
> The ATmel AVRs are more like the HC11/HC12 in assembly programming.
> There are some similarities and uniquicness of the AVR that has to be
> taken into account inporting Nitros09 over to say an XMega AVR. There
> are 32 8 bit general purpose registers. Register 31 and 32 act as a 16
> bit Z register, 29 and 30 would correspond to the Y register and 28 and
> 29 would correspond to the X register of the 6809.
> 6809 code may be easier to port over. Not sure if 6309 is real easy or
> not.
> The XMega series is as powerful an 8 bit processor as there is that is
> still in production. There are some neat things they do that are
> better. I like the RAMPx instruction where any of the 26 general
> purpose registers can be concacted with the Index registers to form 24
> or 32 bit registers. You can point to any where in a 24 bit memory map.
> There also is a DMA on some flavors.
> It truly would be a neat project and a rather lengthy undertaking to do
> though.
> james
> On 2 Oct 2011 at 18:07, gene heskett wrote:
> > Thanks Mark.
> > 
> > Silly Q?  Is this atmel chip equipt with the command set that would
> > let nitros9 be ported to it?

Cheers, Gene
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