Re: Languages from the 1950s

From	Martin Ward <martin@gkc.org.uk>
Newsgroups	comp.compilers
Subject	Re: Languages from the 1950s
Date	2020-05-13 10:51 +0100
Organization	Compilers Central
Message-ID	<20-05-005@comp.compilers> (permalink)
References	<20-03-030@comp.compilers> <20-05-003@comp.compilers>

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On 10/05/2020 01:46, John wrote:
> It was an "optimizing" assembler in that it tried to place
> instructions in locations on the 650's drum to minimize the
> rotational delay. -John

When I read this I thought "how quaint!". But then I remembered
that with modern heavily pipelined CPU's, compilers also need
to place instructions in the right order so that each instruction
in the sequence is executed just as the hardware components
that it needs become available, to minimise the pipeline delay.

Plus ça change, plus c'est la même chose.

--
			Martin

Dr Martin Ward | Email: martin@gkc.org.uk | http://www.gkc.org.uk
G.K.Chesterton site: http://www.gkc.org.uk/gkc | Erdos number: 4
[It's remarkable how little modern software technology wasn't already
done somewhere in the 1950s or 1960s.  -John]

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Languages from the 1950s "Derek M. Jones" <derek@_NOSPAM_knosof.co.uk> - 2020-03-30 15:16 +0100
  Re: Languages from the 1950s anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2020-03-31 17:08 +0000
    Re: Languages from the 1950s "Derek M. Jones" <derek@_NOSPAM_knosof.co.uk> - 2020-03-31 19:27 +0100
  Re: Languages from the 1950s gah4@u.washington.edu - 2020-03-31 16:09 -0700
    Re: Languages from the 1950s "Robin Vowels" <robin51@dodo.com.au> - 2020-04-02 13:05 +1100
  Re: Languages from the 1950s "Robin Vowels" <robin51@dodo.com.au> - 2020-04-01 21:31 +1100
    Re: Languages from the 1950s "Derek M. Jones" <derek@_NOSPAM_knosof.co.uk> - 2020-04-01 17:35 +0100
  Re: Languages from the 1950s Philipp Klaus Krause <pkk@spth.de> - 2020-04-01 17:49 +0200
  Re: Languages from the 1950s rst@panix.com (Robert Thau) - 2020-05-10 00:46 +0000
    Re: Languages from the 1950s Martin Ward <martin@gkc.org.uk> - 2020-05-13 10:51 +0100
  Re: Languages from the 1950s "Robin Vowels" <robin51@dodo.com.au> - 2020-09-03 21:02 +1000

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