From: ches@cheswick.com (William Cheswick)
Subject: [TUHS] Harvard and Von Neumann Architectures and Unix
Date: Sat, 25 Nov 2017 16:55:04 -0500 [thread overview]
Message-ID: <A2DB3F5E-70CC-413C-8B7C-3CCE451B1F37@cheswick.com> (raw)
In-Reply-To: <201711242150.vAOLoHCg026295@darkstar.fourwinds.com>
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On CDC machines, the return jump (RJ) instruction generally used to call subroutines deposited a jump instruction (EQ B0,B0,caller+1) in the called routine and jumped to the word after it. Clearly, languages like Pascal didn’t use that.
I seem to recall that the CDC SORT routine built and executed sort computations in memory, a la bitblt, which came a few years later. Of course, CDC had no concept of I and D space. We aren’t talkin’ Burroughs here….
ches
next prev parent reply other threads:[~2017-11-25 21:55 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-24 21:43 Noel Chiappa
2017-11-24 21:50 ` Jon Steinhart
2017-11-25 21:55 ` William Cheswick [this message]
2017-11-25 23:15 ` Dave Horsfall
2017-11-24 22:20 ` Mike Markowski
2017-11-24 22:31 ` Dave Horsfall
-- strict thread matches above, loose matches on Subject: below --
2017-11-27 17:11 Noel Chiappa
2017-11-28 0:23 ` Dave Horsfall
2017-11-27 16:11 Noel Chiappa
2017-11-27 16:50 ` Larry McVoy
2017-11-27 17:08 ` Clem Cole
2017-11-27 18:21 ` Lawrence Stewart
2017-11-27 18:30 ` Lars Brinkhoff
2017-11-27 18:14 ` Warner Losh
2017-11-27 18:26 ` Paul Winalski
2017-11-27 17:35 ` Ian Zimmerman
2017-11-28 14:55 ` Tim Bradshaw
2017-11-28 19:45 ` Paul Winalski
2017-11-25 17:34 Doug McIlroy
2017-11-25 14:24 Noel Chiappa
2017-11-25 15:58 ` Lawrence Stewart
2017-11-25 16:10 ` Lars Brinkhoff
2017-11-25 19:59 ` Steve Simon
2017-11-25 21:59 ` Bakul Shah
2017-11-25 3:14 Doug McIlroy
2017-11-25 4:16 ` Jon Steinhart
2017-11-25 5:17 ` ron minnich
2017-11-25 14:23 ` Ralph Corderoy
2017-11-24 19:25 Will Senn
2017-11-24 19:28 ` Jon Steinhart
2017-11-27 14:50 ` Tony Finch
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