Re: kern/58598: FP event message displayed on NetBSD-10.0/alpha

[Jason Thorpe <thorpej%me.com@localhost>]

> On Aug 14, 2024, at 5:35 PM, isaki%pastel-flower.jp@localhost wrote:
> 
> [ 20365.740908] FP instruction 5c420422
> [ 20365.754956] FP event 3/8/800000
> [ 20365.767463] Please report this to port-alpha-maintainer%NetBSD.org@localhost

Well this is annoying.  There are two places that use the “3” what-can’t-happen code.  Grumble.  WHO WROTE THAT STUFF ANYWAY?  (Heh, it was Ross, actually.)

Luckily, we have the instruction bits.

Looks like that’s:

	opcode=23, displacement=1058, ra=2, rb=2

…which would be:

	ldt	f2,1058(t1)

?

That doesn’t make any sense, actually.  Ok, I’ve probably decoded that wrong.  I’ll take another look later.

-- thorpej