Subj : Interrupts
To   : Jonathan De Boyne Pollar
From : Lee Aroner
Date : Tue May 29 2001 02:35 am

 LA> I had assumed that OS/2 used the same method of 
 LA> forcing a processor exception 
 LA> to jump to ring zero as MonopolySoft uses, apparently I was wrong.

JdBP> Strictly speaking, the design of OS/2 in this area is partly Microsoft's.

   I guess that would tell us something about what G. Letwin thought 
   of the jump to the bios IBM copyright notice as a means of 
   switching processor state then, eh?

   Oddly enough, it was IBM that originally came up with that 
   method, although it was Bilge and crew that took a patent on the 
   use of the idea.


                                       LRA


 -- SPEED 2.01 #2720: The only good extremist is a dead extremist.

--- Maximus/2 3.01
 * Origin: Top Hat 2 BBS (1:343/41)

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