Newsgroups: comp.lang.c
Path: utzoo!henry
From: henry@utzoo.uucp (Henry Spencer)
Subject: Re: C optimizer
Message-ID: <1989Feb14.154531.15292@utzoo.uucp>
Organization: U of Toronto Zoology
References: <515@larry.UUCP> <9648@smoke.BRL.MIL>
Date: Tue, 14 Feb 89 15:45:31 GMT

In article <9648@smoke.BRL.MIL> gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>) writes:
>... to allow the compiler to generate
>in-line code rather than an actual function call for standard
>functions.  There actually is floating-point hardware with SQRT
>support; I don't know about COS.

You betcha; the 80x87 and the 6888x implement everything including the
kitchen sink, notably the trig functions.  Never mind the mundane stuff
like cos():  the 68881 has a hyperbolic-arctangent instruction!

Of course, the newer and faster FPUs like the MIPS one don't have all
this gingerbread, so who knows what next year's FPUs will look like...
-- 
The Earth is our mother;       |     Henry Spencer at U of Toronto Zoology
our nine months are up.        | uunet!attcan!utzoo!henry henry@zoo.toronto.edu