Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site utcsri.UUCP Path: utzoo!utcsri!greg From: greg@utcsri.UUCP (Gregory Smith) Newsgroups: net.micro.apple Subject: Re: Apple //e Interrupts Message-ID: <3184@utcsri.UUCP> Date: Sun, 27-Jul-86 22:18:39 EDT Article-I.D.: utcsri.3184 Posted: Sun Jul 27 22:18:39 1986 Date-Received: Sun, 27-Jul-86 22:29:11 EDT References: <283@ski.UUCP> <175@uvicctr.UUCP> <2245@brl-smoke.ARPA> Reply-To: greg@utcsri.UUCP (Gregory Smith) Organization: CSRI, University of Toronto Lines: 19 Summary: In article <2245@brl-smoke.ARPA> gwyn@brl.arpa (Doug Gwyn (VLD/VMB) ) writes: >I haven't seen mention of this, but interrupts during disk I/O >can corrupt your disk. ProDOS supports interrupts but they're >inhibited during critical timing loops. If you need interrupts > >I have to agree that the Apple ][ family is really not designed >for real-time, multitasking use. There's no reason it shouldn't >have been, except they didn't think of it in the first place. Oh yeah? Any idea how much cost was saved ( way back when ) by making the CPU work its tail off in disk I/O, rather than using an LSI disk controller chip ? ( Not to mention trimming everything from the drive, e.g door switch, index hole sensor, track zero sensor. TUKATUKATUKATUKATUKATUKA!!) -- "You'll need more than a Tylenol if you don't tell me where my father is!" - The Ice Pirates ---------------------------------------------------------------------- Greg Smith University of Toronto UUCP: ..utzoo!utcsri!greg