Path: utzoo!mnetor!uunet!husc6!mailrus!umix!umich!mibte!twh
From: twh@mibte.UUCP (Tim Hitchcock)
Newsgroups: comp.sys.att
Subject: Re: C compilers for the 3B2
Message-ID: <2575@mibte.UUCP>
Date: 18 Apr 88 17:20:13 GMT
References: <546@vsi.UUCP> <552@vsi.UUCP>
Distribution: comp
Organization: Michigan Bell Telephone Company
Lines: 24
Summary: CPLU C Compiler

In article <552@vsi.UUCP>, friedl@vsi.UUCP writes:
> In article <546@vsi.UUCP>, Stephen J. Friedl (that's me, folks) writes:
> > Hi net.people,
> > 
> >      A number of recent postings have exhibited confusion about
> > the various C compilers available for the 3B2, so perhaps this
> > discussion will clear some things up.
> > [discussion of various C compilers for the 3B2}
> > [pcc2, C Issue 3, C-FP+, and CPLU 4.1]
> 
> I just heard today that there is now a CPLU (C Programming
> Utilities) 4.2, but I've no idea what it contains.  Has anybody
> heard of it?
> 
> -- 
> Steve Friedl   V-Systems, Inc.   "Yes, I'm jeff@unh's brother"
> friedl@vsi.com  {backbones}!vsi.com!friedl  attmail!vsi!friedl

The 4.2 C compiler  on the 3B2 can optimize code for faster performance. 
The code generated in many cases is noticeably faster than 4.1 generated code.
Possibly 50% faster (NO PROMISES).

If your program spends a lot of time doing user calls (see "time" in man),
you may get improved performance by adding the co-processor.