[TUHS] Any Interdata war stories?

Al Kossow aek at bitsavers.org
Wed Apr 30 04:46:19 AEST 2025


On 4/29/25 11:25 AM, Clem Cole wrote:
> Yes, that was one of the RTS compilers for the NU machine.  John Romkey may have done it, as he was the primary person behind PCIP, but I 
> can not claim I remember who did the 8086 backend.  IIRC Jack Test did the 68K backend.  The RTS crew had the NU machine and NU bus that 
> went with it.   Very tean project Neat project.  Similar idea, in fact to what CMU was doing with the Intel Mutlibus called the distributed 
> front end (we had started with LSI-11 and cost reduced it to 8086 on a Intel Multibus).  Andy Bechtolsheim would take with him to Stanford 
> and rework with a 68K which became the Stanford Network Terminal - which used the RTS's C compilers.   It's all very mixed up. [ Don't tell 
> me there was not an open source culture back in the old days by the way].
> 
> Anyway the MIT RTS foilks made hardware and PCC back ends for the 68K, Z8000 and 8086.  I believe that each had separate assemblers, tjt who 
> sometimes reads this list might know more, as he wrote the 68K assembler.  IIRC they had a common linker which is was rewrite/extension to 
> the original V7 linker or maybe the 4.1 linker.
> 
> Anyone with a V7 license could get it.   If you had a PC license you get get the source to Romkey's PCIP.   If you did not a license, you 
> could only get a binary kit.

I have an image of the "MIT Compiler Tape" with a bunch of different PCC ports from a couple of different institutions.

On the Stanford side, SUMACC was a hack of the compiler to work with the Macintosh
I had the source for it at one point, but haven't been able to find it on any of my backups.



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