> >The Intel CPUs (and most other CPUs that do multitasking) have what are
> >called "rings" which describe what kind of access the process can get to
> >the CPU. The lowest ringlevel (ring 0) is your kernel and driver code.
> >Most other CPUs only have 2 ringlevels, but Intel 32-bit CPUs (the 386 and
> >up) have 4 ringlevels, but no one has ever put anything but rings 0 and 3
> >to use.
>
> That's not true at all, there are several operating systems that have put the other rings to use. QNX and OS/2 to name a couple.
>
> -mike
>
Ahhh... Well, at least someone has put that feature to use. As far as I
had read tho, it hadn't been used. I guess I stand corrected.
Derrik Pates
dpates@cavern.nmsu.edu
"What'll you two lovable plush toys have?"
"How 'bout a root beer popsicle and an Orange Julius? What about you,
Max?"
"Dishwater! And put it in a dirty glass!"
-Sam & Max
"Fair Wind to Java"