Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!mcvax!diku!daimi!agesen From: agesen@daimi.UUCP (Ole Agesen) Newsgroups: comp.sys.atari.st Subject: Module IOTRANSFER & Interrupts Message-ID: <848@daimi.UUCP> Date: Tue, 14-Jul-87 10:25:58 EDT Article-I.D.: daimi.848 Posted: Tue Jul 14 10:25:58 1987 Date-Received: Fri, 17-Jul-87 03:09:21 EDT Reply-To: agesen@daimi.UUCP (Ole Agesen) Distribution: world Organization: DAIMI: Computer Science Department, Aarhus University, Denmark Lines: 12 I'quite new to this newsgroup, so maybe this problem already has been discussed. Anyway ... I'm writing a program on the 520 ST (1 MByte RAM) using TDI Modula-2/ST. The program have to multitask. I hope it'll be possible to use the standard modula statement IOTRANSFER in a scheduler. But, but, ... here is my problem: I don't know, which device to use to generate periodic interrupts (50-200 pr second would be fine). There should be a Timer-A somewhere (?). The XBIOS-functions don't seem of much help - or perhaps I just don't understand 'em well enough. Can anyone help me to some info about Timer-A, or even better: has anyone used multitasking in modula-2 on the ST.