Hi..
 > CH> You are right when you say that a copyright date of 1981 is
 > CH> a good indicator: the copyright date was updated *because*
 > CH> the chip is a new design - the reason for the new design?
 > CH> the SS bug is fixed!
 > "Good" indicator or "reliable" indicator?  Not that it matters,
 > codewise, but just wanna be able to update my notes.  ;)
Like all things obscure.. I would not guarantee it. It seems to be reliable 
in practice though: never seen a CPU that doesn't fit the rule.
    Craig
--- FMail/386 1.20+
---------------