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From: kurtk@tekcae.CAX.TEK.COM (Kurt Krueger)
Newsgroups: comp.arch,comp.lang.fortran,comp.misc
Subject: Re: Quadruple-Precision Floating Point ?
Keywords: REAL*16 hardware
Message-ID: <2334@tekcae.CAX.TEK.COM>
Date: 21 Dec 88 17:50:08 GMT
References: <8561@alice.UUCP> <3688@s.cc.purdue.edu> <285@loligo.fsu.edu>
Reply-To: kurtk@tekcae.CAX.TEK.COM (Kurt Krueger)
Organization: Tektronix, Inc., Beaverton,  OR.
Lines: 17

Lots of deleted stuff about CDC doing double precision (128 bit) floating
arithmetic with two seperate instructions ....

The new 180 series machines DO have a real full double precision (128 bit)
machine instruction set for the four basic arithmetic ops.  The interesting
thing is that running that machine in the 170 mode (with the FXi and DXi
instructions) would slightly beat the machine in the 180 mode.  Which goes
to show that the mere presence of 128 bit instructions doesn't automatically
make for speed.

RISC - Seymour was right!
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