On Tue, 23 Oct 2018, ben via cctalk wrote:
On 10/23/2018 3:32 PM, Gordon Henderson via cctalk wrote:
On Tue, 23 Oct 2018, ben via cctalk wrote:
The PDP 11 is nice machine, but I am looking for simpler designs
where 16K words is a valid memory size for a OS and small single user
software.
Try the Modular One with an OS written in BCPL.
https://www.cs.ox.ac.uk/files/3230/PRG08.pdf
Although that paper suggest 32K of core.
A quick search shows NO DOCUMENTS online. Another LOST sytem from the
70's.Ben.
There's a few bits & piece online, maybe not in the "usual" places though:
https://en.wikipedia.org/wiki/Computer_Technology_Limited
http://www.redhawksys.com/index_files/Page627.htm
Also worthwhile noting that Iann Baron
(https://en.wikipedia.org/wiki/Iann_Barron ) went on to found inmos and
create the transputer. I worked in Bristol for some time, starting with a
company founded by some ex-inmos employees in the mid 80's building
transputer base supercomputers - a CPU with a curious instruction set that
(coincidentally?) might be a good fit for the BCPL CINTCODE system. I'm
also sure that the transputer is very much influenced by the Modular One
too.
BCPL continues on to this day, now a 32 or 64 bit language running on all
mainstream OSs and processors.
-Gordon
