Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!hp4nl!sara5!toon
From: toon@news.sara.nl
Newsgroups: comp.sys.next
Subject: Re: 68040 Math / Why so much system time?
Message-ID: <1991Feb15.135340.2808@news.sara.nl>
Date: 15 Feb 91 12:53:40 GMT
References: <1991Feb14.160749.19048@batcomputer.tn.cornell.edu> <290@rosie.NeXT.COM>
Lines: 21

In article <290@rosie.NeXT.COM>, news@NeXT.COM (news) writes:
> In article <1991Feb14.160749.19048@batcomputer.tn.cornell.edu>  
> finn@batcomputer.tn.cornell.edu (Lee Samuel Finn) writes:
>> [ Text deleted ] 
>> Why all the system time spent doing a sin()? Just fyi, the same prog
>> lsf@astrosun.tn.cornell.edu
>> 
[... stuff that explains the software emulated 68882 instructions
	are handled by traps on the 68040 deleted ... ]
> Hope this helps.
Sorts of. Is trapping these instructions really faster than implementing
sin(), cos(), tan() and friends as run time library subroutines to the
(Objective-) C(++) compiler ? I would doubt it.
> 
> 		--morris
-- 

Toon Moene, SARA - Amsterdam (NL)
Internet: TOON@SARA.NL

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