From: Nigel Stephens <nigel AT algor DOT co DOT uk>
Date: Tue, 29 Nov 1994 11:42:17 GMT
To: dj AT stealth DOT ctron DOT com (DJ Delorie)
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu, trav AT clark DOT edu
Subject: Re: Interrupts
References: <9411282312 DOT AA05304 AT delorie>
	<Pine DOT 3 DOT 89 DOT 9411241534 DOT A17733-0100000 AT clark DOT edu>

DJ Delorie (dj AT stealth DOT ctron DOT com ) writes:
 > 
 > > handler(){
 > >   printf("foo");
 > > }
 > 
 > One other problem is that you can't do anything in a real mode
 > callback (or interrupt) that might cause a mode switch.  Basically,
 > you can do integer math and maybe call a function or two - it's pretty
 > limited.  It may work sometimes, but it's not guaranteed.

What happens if the real-mode callback/interrupt handler page faults?  

 _________________________________________________________________________
 Nigel Stephens, Algorithmics Ltd, 3 Drayton Park, London, N5 1NU, England
 phone: +44 171 700 3301   fax: +44 171 700 3400  email: nigel AT algor DOT co DOT uk