On 10/4/2019 6:43 AM, David via cctalk wrote:
> 1976, UCSD. So I was using your Lisp.
> 
> I got a position on the UCSD Pascal project half way through that year 
> (reunion in just 2 weeks). So I’m very familiar with the p-code and how all 
> that works as well.
> 
> In 1978 I discovered Unix on a 780 in the 4th(?) floor lab and made the 
> switch from Pascal to C. Been a hard core Unix developer ever since. As a 
> result my name appears in almost all Apple products in the legal section.
> 
>       David
> 
>> On Oct 3, 2019, at 11:16 PM, Stan Sieler <sie...@allegro.com> wrote:
>>
>> David...where did you use Lisp on a B6700?
>>
>> Bill Gord and I wrote the first INTERLISP interpreter for the B6700 back 
>> around
>> 1974-1975, on a DARPA contract, at UCSD.  (At the start, it was to implement 
>> BBNLISP,
>> but the name changed during the project :)
>>
>> DARPA found that researchers using INTERLISP (or others) on Dec PDP10s (and 
>> similar) were hampered by the limited address space (256K virtual memory).  
>> The B6700 offered a significantly larger address space (and many other 
>> features, of course :)
>> (I know our LISP got distributed to other Burroughs sites in those days,
>> just like our STARTREK and Bob Jardine's SOLAR.)
>>
>> Danny Bobrow (with Xerox PARC at the time) came and helped us get started.
>> I met Warren Teitelman ... he had no idea that the cover of the INTERLISP 
>> manual was an homage to his last name.  (See: 
>> http://bitsavers.org/pdf/xerox/interlisp/Interlisp_Reference_Manual_Oct_1974.pdf
>>  
>> <http://bitsavers.org/pdf/xerox/interlisp/Interlisp_Reference_Manual_Oct_1974.pdf>
>>  )
>>
>> We got our system up and running, including DWIM and other packages, and 
>> were told ... oops, DEC figured out how to expand the amount of virtual 
>> memory on the PDP-10, so we don't need to buy Burroughs mainframes now!
>>
>> Our INTERLISP was a full interpreter, and also had a compiler to LISP 
>> p-code, which might have inspired UCSD Pascal's p-code (Ken Bowles was our 
>> boss). 
>>
>> I believe I have the source, in Burroughs ALGOL.
>>
>> As a side bonus, I got to interact with Danny, and people from PARC and BBN 
>> as we were watching other UCSD Computer Center people put the B6700 on the 
>> ARPANET.  (I think we were something like the 25th computer.)
>>
>> Stan Sieler
>>
>>
> 
> 

FYI there is a Burroughs 5500 simulator out there that runs ALGOL just
fine.  Let me know if you want a pointer to the developer.

JRJ

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