Path: utzoo!attcan!uunet!mcvax!dik
From: dik@cwi.nl (Dik T. Winter)
Newsgroups: comp.arch
Subject: Re: m88000 benchmarks
Message-ID: <7570@boring.cwi.nl>
Date: 28 Jun 88 01:05:30 GMT
References: <1941@pt.cs.cmu.edu> <3208@ubc-cs.UUCP> <1986@pt.cs.cmu.edu> <754@garth.UUCP> <12171@mimsy.UUCP>
Organization: CWI, Amsterdam
Lines: 13

In article <12171@mimsy.UUCP> chris@mimsy.UUCP (Chris Torek) writes:
 >          It came up with a four-68000-instruction `signum' function,
 > and its versions of min and max (and minmax together) are also quite
 > surprising.  None of them have any branches.
(What is signum?)
Not so surprising for min and max (and minmax).  However, they require a
sign extending shift, so that implementation is not possible on all
machines.  Also, if a branch takes only one cycle (with delay slot),
you do not gain anything (in general).
-- 
dik t. winter, cwi, amsterdam, nederland
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