On 11/5/17 3:12 PM, Clem cole wrote:

> IIRC Leffler and Shannon had something
> for a compiler backend at Case when they started their PE port, although
> they had to do some hacking as the model they had was different from any
> previous PE (they had to deal with a number of 7 bit and 24 bit issues). I
> believe one of the attractions to the PE was they model the Research folks
> had access was 32 bits and the PDP-11 was 16.   I’ll try to ask Sam with
> what they started.

It was a Harris /6 (I don't know how much that has in common with any PE
model), Sam started with Johnson's PCC, and it was apparently a huge PITA.
I have a copy of his thesis describing the work.

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
		 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet at case.edu    http://cnswww.cns.cwru.edu/~chet/