Forwarded: improved UTX mathlib

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#12

From: gouldbugs
Date: Mon, 25 Nov 1985 16:22

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From ncr-sd!sdcc6!sdcc3!sdcsvax!sdcrdcf!trwrb!scgvaxd!wlbr!voder!nsc!pyramid!pesnta!amd!amdcad!amdimage!prls!philabs!ron1!polyof!john Tue Nov 19 08:22:38 1985
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From: john@polyof.UUCP ( John Buck )
Newsgroups: net.sources
Subject: Gould Concept 32 libm routines
Message-ID: <171@polyof.UUCP>
Date: 19 Nov 85 16:22:38 GMT
Date-Received: 24 Nov 85 10:50:49 GMT
Distribution: net
Organization: Polytechnic Inst. of NY, Farmingdale
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We have re-written several of the heavily used routines in libm.a
in assembler for the Gould 32/67, 32/97, PN60xx PN90xx machines.

Specifically, sqrt(), ldexp() and frexp().
sqrt() is about 10 times faster, and ldexp(), frexp() are MUCH faster
than that.  If you do lots of f77 stuff (exp, log, etc), these call
frexp and ldexp, so their times will be much better too.

If you are interested, send E-mail.  I would have just posted them,
but they are about 4K ofsource, and comments, and the target group
is quite small.

Technical Details

Message-ID: <8511251622.AA01492@gould9>

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From: gouldbugs@ucbvax.UUCP
Newsgroups: mod.computers.gould
Subject: Forwarded: improved UTX mathlib
Message-ID: <8511251622.AA01492@gould9>
Date: Mon, 25-Nov-85 11:22:10 EST
Article-I.D.: gould9.8511251622.AA01492
Posted: Mon Nov 25 11:22:10 1985
Date-Received: Tue, 26-Nov-85 20:50:32 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: CACI, Inc. -- La Jolla (home of SIMSCRIPT II.5)
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Approved: gouldbugs@brl.arpa