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Date: Tue, 02 Feb 1999 15:37:17 -0500
To: djgpp AT delorie DOT com
From: Paul Derbyshire <pderbysh AT usa DOT net>
Subject: Re: Question about long long math on inel archs
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Reply-To: djgpp AT delorie DOT com

I forgot to add: how does long long arithmetic compare with that on longs,
on shorts, on chars, on floats, on doubles, and on long doubles? Adds and
especially multiplies are ym chief concern. Can someone list for add and
mul, those data types in decreasing order of speed, in terms of amortized
CPU cycles? (Amortized in case long longs involve software that is variable
in cycle usage from one set of operands to another.) (Don't worry about
pipelining and other scheduling stuff, just consider the operation
performed synchronously and all by itself.)
-- 
   .*.  "Clouds are not spheres, mountains are not cones, coastlines are not
-()  <  circles, and bark is not smooth, nor does lightning travel in a
   `*'  straight line."    -------------------------------------------------
        -- B. Mandelbrot  |http://surf.to/pgd.net
_____________________ ____|________     Paul Derbyshire     pderbysh AT usa DOT net
Programmer & Humanist|ICQ: 10423848|