Subject: Re: X11 and mc68060...
To: Ruben van Staveren <ruben@luna.net>
From: David Brownlee <abs@NetBSD.ORG>
List: port-amiga
Date: 02/09/1998 02:43:09
	Would it be feasible to ship two different versions of the X
	server - one compiled as now, and one for 68060, or should all
	the clients also be compiled for 68060?

		David/absolute

	-- Whom computers would destroy, they must first drive mad. --

On Mon, 9 Feb 1998, Ruben van Staveren wrote:

> Hi,
> > 
> > 
> > Your understanding of -m68060 is incomplete.
> > 
> > -m68060, as currently implemented, is like -m68040, with the additional 
> >  omission of 68060 unfriendly integer instructions.
> > 
> > Both -m68040 and -m68060 create FP instructions that are NOT implemented on
> > the 68881 and 68882 coprocessors.
> Ok, the kernel uses soft-float
> 
> > 
> > This is no problem for the kernel (which does not do any FP computations of
> > its own), but WILL break many user programs.
> > 
> > Regards,
> > 	Ignatios Souvatzis
> > 
> > (who once made the mistake to compile his X server with -m68060, and needed
> > a while ot understand why it crashed on the 68030 machine, on which he 
> > occasionally boots NetBSD.)
> > 
> 
> Hmm lets compile the Xserver (and related stuff) with soft-float too :)
> (with severe performance loss on all cpu classes)
> Or introduce cyberpatcher alike features in NetBSD *grin*
> 
> 
> Regards,
> 	Ruben
> 
> -- 
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