Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!helios!bcm!rice!uw-beaver!mit-eddie!snorkelwacker.mit.edu!usc!elroy.jpl.nasa.gov!decwrl!mcnc!ncsuvx!news From: kdarling@hobbes.ncsu.edu (Kevin Darling) Newsgroups: comp.os.os9 Subject: Re: GIME & IRQ Message-ID: <1991Jan31.194010.5344@ncsuvx.ncsu.edu> Date: 31 Jan 91 19:40:10 GMT References: <1991Jan27.011002.21385@lsuc.on.ca> <1991Jan28.023048.24497@ncsuvx.ncsu.edu> <1991Jan30.090914.11090@tkou02.enet.dec.com> Sender: news@ncsuvx.ncsu.edu (USENET News System) Distribution: na Organization: NCSU Computing Center Lines: 15 zambotti@wpowz.enet.dec.com (Walter Zambotti DEC) writes: > it seems that you may know of how and where to get a copy of the > hacked clock module??? Hi. I think Rainbow magazine had a version of a hacked Clock (to toggle the GIME) a few months back. There may be other versions floating around; I'll check (the only versions I have are unusable upgrade ones). Basically, all you do is toggle the CART interrupt enable bit in the GIME Off then back On... this retriggers an IRQ to the cpu if one or more devices out on the MPI are still requesting service. You do this after Clock has finished calling the OS9 polling routine, of course (so that any called device drivers have had a chance to clear their pending irqs). - kevin