>Date: Sun, 8 Jun 1997 10:28:16 +1000 (EST)
>From: Joel Reicher <void@yoyo.cc.monash.edu.au>

>I must admit I was expecting it to be something like this. :) Why is the 
>GENERIC kernel config line this then:
>
>npx0  at isa? port 0xf0 irq 13   # math coprocessor
>
>Is it just in case the coprocessor is a weitek, or some other chip 
>external to the CPU?

Yes, IRQ13 was used by some older i386 motherboards to propagate i387
errors to the CPU.  As far as I know, all x86 CPUs with on-chip FPUs
use exception 16 instead.
-- 
Mike Long <mikel@shore.net>                http://www.shore.net/~mikel
"Every normal man must be tempted at times to spit on his hands,
hoist the black flag, and begin slitting throats." -- H.L. Mencken