Subject: Re: /etc/mk.conf and compiler options for SS5
To: matthew green <mrg@eterna.com.au>
From: Michael <macallan18@earthlink.net>
List: port-sparc
Date: 04/27/2005 07:48:43
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Hello,
> On 4/26/05, Jesse Sayre <sayre17833@earthlink.net> wrote:
> > Have several SS5's (85MHz and 110MHz versions) that I wish to compil=
e some
> > apps on. I am sorta at a loss as to which compiler options I want t=
o pass
> =20
> SS5 is supersparc so -mcpu=3Dsupersparc is the thing you need.
>=20
> SS5 is microsparcII except for SS5/170 which is turbosparc, i thought?
Both use the SPARC v8 instruction set, the TurboSPARC is more or less a tur=
bocharged MicroSPARC II with L2 cache :)
The main difference is that the SuperSPARC is superscalar while the MicroSP=
ARCs aren't as far as I remember, so -mcpu-supersparc may schedule instruct=
ions in a way that's not optimal for MicroSPARCs - better use -mcpu=3Dv8 he=
re I guess.
have fun
Michael
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