> Correct me if I'm wrong, but I thought the '040 had built-in PMMU 
> (different than that on the '030-- more features), additional cache 
> control, separate instruction and data caching, and built-in FPU.  It's 
> somewhat analagous to the 386 to 486 difference.

As I said, I don't know too much about either the '040 or the '060.

However assuming you are right here, these differences are (with the exception
of the FPU) mostly invisible to the user.

> As far as the '060, I 
> thought it was RISC-based and had an entirely different instruction set 
> then the 000-040 chips.

That's most certainly not correct.  Otherwise NetBSD/amiga wouldn't have
got support for the 68060 that easily, would it?
--
ws@TooLs.DE     (Wolfgang Solfrank, TooLs GmbH) 	+49-228-985800