From: Bjorn De Meyer <bgdmeyer AT eduserv2 DOT rug DOT ac DOT be>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: cpu support
Date: Wed, 2 Dec 1998 11:02:56 +0100
Organization: University of Ghent, Belgium
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> > 
> > Does anybody know the correct switches for the following:
> > 
> > 80586
-march=pentium -mpentium (use both) 
-mpentium aligns on pentium boundaries, and
-march=pentium generates pentium instructions.
> > 80586 with MMX (basically alot bigger cache)
MMX is not yet supported, I think
> > 806x86 (Cyrix with MMX, bigger cache)
Mmx is not supported though there is a -mpentiumpro or a m-i686 switch, I
believe.


> > 
> > Just simple switches that work better for those targets.  I use -mpentium,
> > but on my cyrix, -mpentium and -m486 give about the same performance (using
> > fly from plush as my testbed, reaching 46 to 56fps)
Use the -march=pentium switch. That should work. Else, your GFX card is
the bottle-neck.


Oh, and please read the info about gcc.
Type 'info gcc' and then go look for compiler options, code generation
options, and look for i386.  You'l find all the information you need.


Bjorn De Meyer.
IA #i^4
Homepage: http://studwww.rug.ac.be/~bgdmeyer
E-mail: bjorn DOT demeyer AT rug DOT ac DOT be 
Licentiate Chemistry. 
Coordinator of the "Tales of Artah: First Sword" CRPG project.         
  
 "I've shaven. I'm happy. I have no religion. Don't pray for me." 
                                                Illusion of Gaia 2