Re: GPF on 6502 Linux with 2.3.99-pre4

From: Vince Weaver (weave@eng.umd.edu)
Date: Sat Apr 01 2000 - 14:09:23 EST


> > running 2.3.99-pre4 on my Apple IIe I got the following gpf
> > anyone know the cause? I've attached dmesg at the end
>
> Should have at least tried it with a IIgs. I am amazed you got
> so far on a IIe, since its 6502 cpu is missing the extended
> addressing modes of the 65c816. AFAIK these are requiered to enable
> VM. Could you please post your changes to the kernel sources as
> a diff? I still own a spare Atari 800XL with 256kB RAM extension
> and a 5MB MFM harddrive. I would LOVE to run Linux on this little
> jewel...

unfortunately this was an April Fools joke [and luckily I didn't receive
the wrath that Adam did for his.... yes coincidentally he lives on the
same campus as me, but we acted independently! ;)]

as far as I know the only way to get those messages on an Apple IIe is the
following:

10 PRINT "LINUX 6502 BOOTING"
20 PRINT "Found Apple IIe enhanced, enabling lowercase."
30 PRINT "Linux version 2.3.99-pre4 (vince@cider) (gcc version ";
         "egcs-2.91.66 19990314 (egcs-1.1.2 release)) #1 Fri Mar 31 ";
         "23:49:34 EST 2000"

etc....

but you might want to check out the LUNIX project...

http://www.heilbronn.netsurf.de/~dallmann/lunix/lng.html

they have a Unix-like kernel [w tcp/ip even!] booting on Commodore 64's,
and with a very slow-moving port to the Apple IIe [which is crippled by
not having a timer interrupt] and other 6502 architectures...

Vince
 
____________
\ /\ /\ / Vince Weaver
 \/__\/__\/ weave@eng.umd.edu http://www.glue.umd.edu/~weave

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