alan.b.pearce@stfc.ac.uk wrote:

> > I believe PDP11 fails modern RISC tests because it uses a memory/
> > register architecture for most operations, and supports double memory
> > operands as well.  But I've also been surprised that no one has simply
> > duplicated a PDP11-on-a-chip (not counting DEC themselves.) (I guess
> > that 64k address space is a bit quaint these days...)
>
> I think it was Fairchild who were making a PDP-on-a-chip - but I think it=
 used the PDP-8 architecture. AFAIK it never made it to market, although I =
did see marketing literature.

Their were a couple PDP8 on a chip parts made. I used a few IM6100 and IM61=
10 parts made by intersil. Both Western Digital and DEC made PDP11 on 3 or =
4 chips

w..


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