New install

Alan Cox alan at lxorguk.ukuu.org.uk
Sun Sep 19 01:08:40 UTC 2010


> > There is a process by which people can support other architectures. If enough
> > people that care enough to do the actual work involved with maintaining
> > a secondary architecture work to make it happen, there could be an i586
> > and/or i486 secondary architecture.
> Well, what is involved in building of Fedora for the i386 arch
> other than an automated script that sets the gcc options to
> compile for the  i386 architecture?
> Is that really all that much work?

386 is fairly hairy because of the FPU differenced and a 386 kernel is
materially slower than a 486 one as it has to deal with some unsupported
MMU features and some missing but important for SMP instructions.

A 486 or 586 kernel is basically just compile options. You actually want
to build for 486 instruction set but tuned for 686 I suspect - gcc
supports this sort of stuff nicely.

Alan


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