MULTIPROCESSING FOR THE IMPOVERISHED Part 1: a 6809 Uniprocessor

[Dave Wade]

> -----Original Message-----
> From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of ben via cctalk
> Sent: 02 August 2019 23:50
> To: cctalk at classiccmp.org
> Subject: Re: MULTIPROCESSING FOR THE IMPOVERISHED Part 1: a 6809
> Uniprocessor
> 
> On 8/2/2019 11:15 AM, Liam Proven via cctalk wrote:
> > 1993 article on building a multiprocessor 6809 box.
> >
> > http://www.bradrodriguez.com/papers/6809cpu.htm
> 
> Read that page years ago.I have always like the 6800 CPU model.I have used
> that model for a 18 and 20 bit cpu design currently being bread boarded in
> DE1 FPGA development kit,
> ~900 logic blocks and a few small ROM blocks.
> 
> Where are all the articles about a TTL designed computer?
> Yes I know about (Homebuilt CPUs ring) but that is mostly today. What about
> the Late 70's and Early 80's?
> 

Many were not published. A friend built a TTL computer based on the PDP-8 but no details were published.
There was a design in the UK called the "weeny-bitter" in the Amateur Computer Club newsletters. Not sure how many got built...
Information is scattered through the magazines. I think start at volume 2...

http://www.smrcc.org.uk/members/g4ugm/acc.htm

Dave 



> 
> I need a the web site "C compiler for the IMPOVERISHED", I have Ron Cain's
> 1.0 Small C compiler modified to generate code for my architecture but the
> code is really inefficient.
> It is the only C compiler with source that fits in 64KB. (8080) Ben.
> 
> 
>