From: mlehmann AT hildesheim DOT sgh-net DOT de (Marc Lehmann)
Sender: root AT universe DOT sgh-net DOT de
Message-ID: <3388A21D.719A6248@hildesheim.sgh-net.de>
Date: Sun, 25 May 1997 22:33:33 +0200
Organization: -
MIME-Version: 1.0
To: dlydiard AT linknet DOT kitsap DOT lib DOT wa DOT us
CC: djgpp AT delorie DOT com
Subject: -m586 option
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> i was
> wondering if there's any -?586 options ..i notices that gcc takes the
> -m586 without any errors but, cc1.exe complains about the option...will
> there be anything like that in the future?...

Please note that no 586 cpu exists...

we have options named
-m386
-m486
-mpentium
-mpentiumpro
-mamdk5
-mamdk6
-mcyrix

most of these options just get renamed to
-mcpu=pentium/i386 etc..

which means: optimize for the xxx cpu

there are additional options
-march=i486, -march=pentiumpro etc..

which says: use the instructions set of that cpu.

There is no difference between the i386 and pentium intructions,
but the ppro has new instructions.


      -----==-
      ----==-- _
      ---==---(_)__  __ ____  __       Marc Lehmann
      --==---/ / _ \/ // /\ \/ /       mlehmann AT hildesheim DOT sgh-net DOT de
      -=====/_/_//_/\_,_/ /_/\_\       pcg AT goof DOT com
    The choice of a GNU generation