Sorry for maintaining an off-topic thread, but: The page lists: "EIEIO | Farm out operation [McDonald/IBM-PC]" as a mythical instruction... The PowerPC 750 (and probably others from the PowerPC family) has an EIEIO instruction -- Enforce In-order Execution of I/O Up until I saw that, I had never laughed at a 400 page data-book. - Keelan Lightfoot >For a chuckle, take a look at: >http://www.cuug.ab.ca/~wongb/funny/cpsc/assembler.html > >Ken