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From: doug@cs.dartmouth.edu (Doug McIlroy)
Subject: [TUHS] rm command
Date: Wed, 25 Apr 2018 22:19:46 -0400	[thread overview]
Message-ID: <201804260219.w3Q2Jk5c022969@coolidge.cs.Dartmouth.EDU> (raw)

> Google didn't seem to turn up much on TML

Perhaps because there was no TML. I suspect you mean TMG,
which I implemented from scratch, based on Bob McClure's 
original, on both PDP 8 and PDP 11 Unix. Bob Morris and
I used it to make EPL, the "early PL/I" compiler for
Multics. 

Off topic, but TMG on the GE 635, usedto buld Multics
got there via quite an Odyssey. Bob McClure created it 
for the CDC 1604. He tranliterated it by hand from 1604
assembly language to IBM 7090 and sent the green coding
sheets to me. Debugging it was an unusual exercise: I 
knew the logic was right; allI had to do was ferret
out mistranslations. The most prevalant problem was
confusion between CLA (signed load) and CAL (unsigned).
When we decided to do EPL, Clem Pease mechanically
reproduced a 7090 inside a Ge 635, by defining 7090
instructions as macros--sometimes quite hairy, but 
they worked.

Doug


             reply	other threads:[~2018-04-26  2:19 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-26  2:19 Doug McIlroy [this message]
2018-04-26  9:41 ` Ralph Corderoy
  -- strict thread matches above, loose matches on Subject: below --
2018-04-27 16:42 Noel Chiappa
2018-04-25 22:17 Noel Chiappa
2018-04-27 16:26 ` Dave Horsfall
2018-04-27 16:58   ` Ian Zimmerman
2018-04-27 18:14   ` Steve Nickolas
2018-04-27 18:17     ` Pete Wright
2018-04-28 16:33       ` Michael Kjörling
2018-04-28 18:01         ` Ian Zimmerman
2018-04-28 18:51         ` Derek Fawcus
2018-04-25 20:22 Eric Blood
2018-04-25 21:23 ` Ralph Corderoy
2018-04-25 21:33 ` John P. Linderman
2018-04-25 21:53   ` William Corcoran
2018-04-25 21:58     ` Derek Fawcus
2018-04-25 22:09     ` Ralph Corderoy

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