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Date:	Wed, 17 Feb 1999 13:53:46 +0000 (GMT)
From:	Bob Firth <firth AT troika DOT demon DOT co DOT uk>
To:	gnu-win32 AT cygnus DOT com
Subject:	-mcpu vs -march
Message-ID:	<Pine.LNX.3.96.990217135320.2563B-100000@troika.demon.co.uk>
MIME-Version:	1.0

I'm using mingw32 on Intel.  I was wondering what is the difference
between using, say, -mcpu=pentium and -march=pentium.  The skimpy
documentation I have implies that the code generated using -march may not
run on all i386 architecture cpu's, whereas using -mcpu it will run
everywhere, if not at its most efficient.  Is this correct?

Bearing in mind the software will run on a variety of different machines
(pentium onwards), what is the best compromise of cpu to compile for? 

What about the AMD K6 ? 

-- 
Bob Firth <firth AT troika DOT demon DOT co DOT uk>
Troika Associates Limited
Nash House, 28 Church Road, Tunbridge Wells, Kent TN1 1JP, UK
Phone: +44-1892-543373   Fax: +44-1892-545585




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