Date   : Wed, 22 Jul 2009 12:41:46 +0100
From   : philb@... (Phil Blundell)
Subject: 6809 CoPro

On Tue, 2009-07-21 at 15:07 +0100, Jonathan Graham Harston wrote:
> > Message-ID: <1248104162.28930.42.camel@...>
>  
> Phil Blundell wrote:
> > Alternatively I don't think it would be all that hard to put a Tube
> > interface on a Unibus card to use with a "real" PDP-11.  Writing the
> > software to make it do anything useful might be more of a challenge
> > though :-)
>  
> Already written the software ;)
> <http://mdfs.net/tube/PDP11/Client.src>. It was the initial test
> code for my Modula-2 PDP-11 assembler at university :)

Ah, very good :-)

If you did feel like building a tube card, the Unibus spec is on
bitsavers:

http://bitsavers.org/pdf/dec/pdp11/handbooks/PDP11_BusHandbook1979.pdf
http://bitsavers.org/pdf/dec/unibus/UnibusSpec1979.pdf

p.