Re: [OpenBIOS] [RFC 3/3] SPARC32/64: Mimic Sun's OBP behaviour if a divide by zero occurs.

[Artyom Tarasenko]

[Appologies if the mail appears twice. Got the "graylisted" error from
the mailing list again, and since the message didn't appear within the
last two days, resending it]

On Mon, Jan 7, 2013 at 7:46 PM, Tarl Neustaedter  wrote:
> On 2013-Jan-7 13:44 , Programmingkid wrote:
> > What PowerPC systems trap on divide by zero?
>
> PPC 8360
> http://stackoverflow.com/questions/6460558/powerpc-how-to-make-div-0-return-...

Actually from this article I don't see that exception is happening in
the Firmware.
I'm very surprised, but our tests on RS/6000 (PReP) and Beige Rev 1
(thanks dreadbit for testing that!) show that PPC firmware allows
division by zero:

0 > 1 0 /  ok
1 > 0 0 /  ok
2 > . 0  ok
1 > . 0  ok
0 >

It would be interesting to know what happens on a CHRP platform, can
anyone check?