> However, one of them remembered that some precision timing could be derived
> from the serial interface chips

Actually, the VIA chips provide some "precision timers" on them in the
Mac architecture.  I suppose you could also rig something off the serial
circuitry, but the VIAs are readily available and are what most people
(and the MacOS) use.

-allen

-- 
Allen Briggs - end killing - allen.briggs@bev.net ** MacBSD == NetBSD/mac68k **
   Where does all my time go?  <a href="http://www.netbsd.org/">Guess.</a>