Subject: Re: FPE & SoftwareFPU (Re: PowerBook 550 doesn't boot)
To: Ken Nakata <kenn@eden.rutgers.edu>
From: SamMaEl <rimsky@teleport.com>
List: port-mac68k
Date: 03/03/1998 04:20:58
On Tue, 3 Mar 1998, Ken Nakata wrote:
> SamMaEl <rimsky@teleport.com> writes:
> > I know my 540c
> > has the LC040, so has the additional FPE problem, though it worked fine
> > otherwise.
>
> I know neither our FPE or SoftwareFPU supports the broken LC040, but
> what problem are you having otherwise? Are you still getting seg
> faults? Or is it just the result of math function isn't right?
My LC040 is a good one... works fine with SoftwareFPU, and has ran
Norton Utilities' FPU tests, etc. Even played Warcraft II on it against a
friend on my Q900 over the ethernet ;-) Had no problems, even with all the
graphics intensive stuff.
I haven't ran NetBSD on the PB540c in quite awhile... I think it
was at 1.2G at the time. But, I got alot of seg faults when I did. I don't
know how much
> > But, since most machines capable of running NetBSD DO have
> > some sort of FPU, not alot of attention has been paid to it.
>
> You're right, but there's something else. It's hard to debug FPE on a
> machine with FPU. It's very tedious. Now that NetBSD (reportedly)
> runs on LC040, people could debug FPE directly on their LC040 boxes.
True.. which is why I'm trying to get my 540c setup again. I'm
installing it as I type, so we'll see ;-)
> > P.S. Any pointers on where to look for help? Would talking to the
> > SoftwareFPU guy hurt at all? It may not work quite the way our FPE does,
> > but I'm sure he should know a bit about it to be able to give us some
> > clues...
>
> What kind of "clues" are you looking for? BTW, so many people have
> suggested asking SoftwareFPU's developer for help on FPE (whether
> regarding LC040 or not), it made it into the FAQ.
Yeah, I read that ;-) I interpreted it as: Porting SoftwareFPU to
NetBSD wouldn't be very feasible.
Ryan
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