Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!IFI.UIO.NO!larserio
From: larserio@IFI.UIO.NO (LarsErikOsterud)
Newsgroups: comp.sys.atari.st
Subject: Re: GEM multi-tasking interface (please!!)
Message-ID: <CMM.0.88.621237408.larserio@kyrre.uio.no>
Date: 8 Sep 89 14:46:34 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 12
X-Unparsable-Date: Fri, 8 Sep 1989 7:56:48 MET DST

Yes, its very easy to do....
First you intercept the normal BIOS/GEMDOS/XBIOS vetctor, then you changes
the returnadress on the stack and do what you want, and jump to the call,
when return you can do somthing else (in user-mode) and then you can jump
to the normal program than called the GEMDOS.  Have a small program that
fixes redirection of I/O.  (> file.ext) for all programs....
Will post it some day - its very handy for BBS-systems (LHARC does not have
redirect built in)

  Lars-Erik   /   ABK-BBS +47 2132659   /   ____ ______
   Osterud   /   larserio@ifi.uio.no   /   /___    /
____________/  _______________________/   ____/   /