Article View: comp.arch
Article #11682Re: Frequency of elementary functions (and other things)
From: Bengt Larsson
Date: Sun, 19 May 1991 08:00
Date: Sun, 19 May 1991 08:00
27 lines
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1728 bytes
In article <12488@mentor.cc.purdue.edu> hrubin@pop.stat.purdue.edu (Herman Rubin) writes: > >The original thread, even cited, was the communication between integer and >floating units. Even such simple things as multiplication by variable >integers are very likely as common as exponentiation. Give some qualified reason for it being likely common. >Another situation >is Boolean operations on both fixed-point and floating numbers; fixed point >is not restricted to integers. In what algorithms? >Also, the availability of hardware operations >leads to their increased use; on a machine with no communication between the >units, a knowledgeable programmer would avoid the need by using some other >algorithm, for example. Apparently not, if the analysis of various (old) CISC machines count. There were many operations which were very seldom used, even though they existed. Bengt Larsson. -- Bengt Larsson - Dep. of Math. Statistics, Lund University, Sweden Internet: bengtl@maths.lth.se SUNET: TYCHE::BENGT_L
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!spool.mu.edu!snorkelwacker.mit.edu!bloom-beacon!eru!hagbard!sunic!lth.se!newsuser From: bengtl@maths.lth.se (Bengt Larsson) Newsgroups: comp.arch Subject: Re: Frequency of elementary functions (and other things) Message-ID: <1991May19.080051.29716@lth.se> Date: 19 May 91 08:00:51 GMT Article-I.D.: lth.1991May19.080051.29716 References: <9105171235.AA20139@ucbvax.Berkeley.EDU> <104811@sgi.sgi.com> <12488@mentor.cc.purdue.edu> Sender: newsuser@lth.se (LTH network news server) Reply-To: bengtl@maths.lth.se (Bengt Larsson) Organization: Lund Institute of Technology, Sweden Lines: 27