[pups] Re: A project--buiilding a device to plug into a PDP-11's bus

Gregg C Levine hansolofalcon at worldnet.att.net
Thu Nov 13 11:48:26 AEST 2003


Hello (again) from Gregg C Levine
I agree. You will note I didn't say where the medium sized box would
use those parts, just that they did. However, according to three
authors, also AMD engineers at the time of their writings, wrote this
book, "Bit-Slice Microprocessor Design", and the authors were, John
Mich, and Jim Brick. The application notes, that they compiled into
it, suggest that something along the lines of the LSI-11 could evolve
from their work. And indeed a different pairing did just that. 

The book's name, and the author's names were, " The art of digital
design : an introduction to top-down design / David Winkel, Franklin
Prosser". In that book they, completely cloned a PDP-11 system, or
something that could run such software, as we would run on the
families of simulators, and emulators. 
      
So we are both right from a certain point of view. 

And you've got a better idea of what I am up to. 
-------------------
Gregg C Levine hansolofalcon at worldnet.att.net
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> -----Original Message-----
> From: pups-bounces at minnie.tuhs.org
[mailto:pups-bounces at minnie.tuhs.org] On
> Behalf Of John Holden
> Sent: Wednesday, November 12, 2003 8:31 PM
> To: pups at minnie.tuhs.org
> Subject: [pups] Re: A project--buiilding a device to plug into a
PDP-11's bus
> 
> 
> Gregg C Levine wrote :-
> 
> > I also recall that the processor in question at one point in its
> > lifespan, actually used the AM2901 family of bit-slice processors.
> 
> DEC didn't use 2901's in central processors, but the FPU's for 11/34
and
> 11/44 used 16 of them to make the 64 bit data path for the FPU. They
were
> also used in some peripherals like the KMC-11.
> 
> A lot of OEM's (like Emulex) used them in disk/tape/terminal
controllers.
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