[Coco] Divide by 10 on a Motorola MC6809(E)

[Andrew]

That's an interesting project, and it would be interesting to see such a 
"hardware-based" approach, but I wonder if a quicker approach might be 
to just emulate it in software, similar in scope to how the PiStorm was 
done:

https://github.com/captain-amygdala/pistorm

...but with just a single, 6809-derived 16-bit software emulated processor?

If it can be done with a 68k processor (+ many variants), then what 
you're imagining should be doable, too?

Software is also faster to iterate on, plus allows for the larger 
community to contribute (well, at least those who understand CPU 
emulation and coding - but I would imagine that has to be a larger 
cohort than those with FPGA skills).

There's room for both approaches, of course.

Andrew L. Ayers
Glendale, Arizona
phoenixgarage.org
github.com/andrew-ayers

On 3/22/24 10:18 PM, coco-request at maltedmedia.com wrote:
> Message: 5
> Date: Sat, 23 Mar 2024 10:00:52 +0900
> From: Joel Rees<joel.rees at gmail.com>
> To: CoCoList for Color Computer Enthusiasts<coco at maltedmedia.com>
> Subject: Re: [Coco] Divide by 10 on a Motorola MC6809(E)
> Message-ID:
> 	<CAAr43iPcUY5Bvh8nz1fQCFVhL-3jkXghMsFafm=Z8p6Q+HESfA at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
[snip]
> One of these days, if I can ever properly retire before all the
> capacitors in my brain start leaking, I'll learn how to emulate the
> 6809 in programmable logic, and construct a properly evolved 16-bit
> 6809.
> 
> In the meantime, there is Turb09, which is also pretty interesting.
> 
> https://github.com/turbo9team/turbo9