From: cis.ohio-state.edu!zaphod.mps.ohio-state.edu!rpi!utcsri!geac!torsqnt!uuno rth!eyepoint!alvin@ucbvax.Berkeley.EDU (Alvin Starr)
Subject: Re: Using Global Variables
Date: 24 Sep 92 06:51:36 GMT [thread overview]
Message-ID: <1992Sep24.065136.4297@eyepoint.com> (raw)
crispen@efftoo.boeing.com (crispen) writes:
>Which is why I wonder about designs that use common memory "for speed".
>Did these designs begin as data-flow-controlled designs, and the
>common memory was retrofitted when the speed *actually* was too slow?
Is it possible that you are confusing static variables with variables
that are keep on a stack or display. And before someone jumpes on me
about how memory inefficient that allocating variables staticaly is,
a little program flow analsys can be used to overlay unused memory
areas(I have done it before for a pascal compiler on a machine that
had no stacks or index registers). The result is a program that looks
like it has no global variables but runs like it does.
--
Alvin Starr || voice: (416)513-6717
Eyepoint Inc. || fax: (416)513-6718
alvin@eyepoint.com ||
next reply other threads:[~1992-09-24 6:51 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
1992-09-24 6:51 cis.ohio-state.edu!zaphod.mps.ohio-state.edu!rpi!utcsri!geac!torsqnt!uuno [this message]
-- strict thread matches above, loose matches on Subject: below --
1992-09-29 15:05 Using Global Variables Charles H. Sampson
1992-09-28 20:56 crispen
1992-09-28 15:53 Victor Giddings
1992-09-28 14:51 Jeffrey Stewart
1992-09-28 12:52 crispen
1992-09-25 22:58 netcomsv!iscnvx!news
1992-09-25 21:16 Charles H. Sampson
1992-09-25 17:50 Charles H. Sampson
1992-09-25 17:36 Charles H. Sampson
1992-09-25 16:30 David A. Hasan
1992-09-25 14:01 crispen
1992-09-24 20:02 netcomsv!iscnvx!news
1992-09-24 18:10 crispen
1992-09-24 3:52 Michael Feldman
1992-09-23 21:13 haven.umd.edu!darwin.sura.net!zaphod.mps.ohio-state.edu!cis.ohio-state.ed
1992-09-23 19:11 Charles H. Sampson
1992-09-23 15:01 crispen
1992-09-23 14:26 munnari.oz.au!ariel!ucsvc.ucs.unimelb.edu.au!phillip.edu.au!x01233
1992-09-23 14:19 crispen
1992-09-23 13:24 wupost!spool.mu.edu!olivea!bu.edu!inmet!inmet!shafer
1992-09-23 2:44 Holmes S. Liao
1992-09-22 20:14 LEE MARDEN
1992-09-22 17:08 dog.ee.lbl.gov!hellgate.utah.edu!cs.utexas.edu!csc.ti.com!tilde.csc.ti.co
1992-09-22 14:54 van-bc!ubc-cs!destroyer!caen!spool.mu.edu!umn.edu!The-Star.honeywell.com!
1992-09-22 12:19 Robert Firth
1992-09-21 21:30 fred j mccall 575-3539
1992-09-21 20:58 cis.ohio-state.edu!zaphod.mps.ohio-state.edu!darwin.sura.net!spool.mu.edu
1992-09-21 20:37 Michael Feldman
1992-09-21 20:36 Michael Feldman
1992-09-21 20:31 Michael Feldman
1992-09-21 19:23 Robert Firth
1992-09-21 18:32 agate!linus!linus.mitre.org!mwvm.mitre.org!M19481
1992-09-21 16:51 Doug Smith
1992-09-21 14:43 haven.umd.edu!darwin.sura.net!spool.mu.edu!umn.edu!The-Star.honeywell.com
1992-09-21 11:49 cis.ohio-state.edu!news.sei.cmu.edu!ajpo.sei.cmu.edu!wellerd
1992-09-21 8:10 paul goffin
1992-09-21 4:08 cis.ohio-state.edu!news.sei.cmu.edu!lph
1992-09-19 2:28 Michael Feldman
1992-09-18 23:52 Charles H. Sampson
1992-09-18 22:50 Robert I. Eachus
1992-09-18 13:12 crispen
1992-09-17 18:34 Charles H. Sampson
1992-09-17 14:24 kronos.arc.nasa.gov!iscnvx!news
1992-09-16 17:47 agate!linus!linus.mitre.org!mwvm.mitre.org!M19481
1992-09-16 15:26 Charles H. Sampson
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