Subject: Re: Implications for npx* ?
To: David Maxwell <david@fundy.ca>
From: Stefan Grefen <grefen@hrriss.fri.tantau.com>
List: tech-smp
Date: 12/25/1999 11:46:44
In message <19991224220303.B15820@fundy.ca>  David Maxwell wrote:
> 
> While applying the patches tonight to try out, I was wondering, how
> does the MathCP map into address space on a board with 2 CPUs?
> 
> npx0 at isa0 port 0xf0-0xff: using exception 16
> 
> Since that's a fixed entry in the kernel config file, it's never
> going to find a second one.

Thats no problem, the port are local on a CPU and never go out to 
the bus anyway. It is a relict of the 386 (and 486) CPU with no
on-chip FPU.

Stefan

> 
> -- 
> David Maxwell, david@vex.net|david@maxwell.net -->
> All this stuff in twice the space would only look half as bad!
> 					      - me

--
Stefan Grefen                                Tantau Software International Inc.
stefan.grefen@tantau.com 
 --- Hacking's just another word for nothing left to kludge. ---