Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!DB2.CC.ROCHESTER.EDU!MEK4_LTD
From: MEK4_LTD@DB2.CC.ROCHESTER.EDU
Newsgroups: comp.sys.apple
Subject: RE: Re: multitasking, softswitch, etc.
Message-ID: <8904041319.aa17266@SMOKE.BRL.MIL>
Date: 4 Apr 89 16:21:00 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 11


	I am wondering about multi-tasking on the IIGS. I have heard that
it can't be done because the there is no MMU in the GS. Can't you write
a software implemented MMU? It would seem that it could be possible for
multi-tasking programs as long as they requested all their memory, and the
MMU was "running in the background" to handle virtual memory. Would this
be too slow? Would interupts mess this up? Or would you need an interrupt
evertime the applications accessed mem locations?

						Mark Kern
						MEK4_LTD@db2.cc.rochester.edu