Article View: alt.msdos.programmer
Article #1297Re: idling in the interpreter
From: Bert Bos
Date: Tue, 06 Mar 1990 15:11
Date: Tue, 06 Mar 1990 15:11
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969 bytes
In article <1990Mar2.022448.9490@usenet.ins.cwru.edu> trier@SCL.CWRU.Edu (Stephen Trier) writes: >The first >way, which is the most reliable, is to hook into interrupt 28h, sometimes >known as the "DOS-Idle" interrupt. MS-DOS calls this whenever it is waiting >for some event, like a keystroke. *Almost* all the MS-DOS functions are >safe to use at this point. (I'm not sure which ones aren't.) According to a book I have (Michael Hyman; Memory resident utilities, interrupts, and disk management with MS & PC DOS; MIS, 1987) it is save to use DOS function calls with numbers above 12 at this point.
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!mcsun!hp4nl!gufalet!bert From: bert@gufalet.UUCP (Bert Bos) Newsgroups: alt.msdos.programmer,comp.sys.ibm.pc.programmer Subject: Re: idling in the interpreter Message-ID: <783@gufalet.UUCP> Date: 6 Mar 90 15:11:54 GMT Followup-To: alt.msdos.programmer Organization: Faculty of Arts, Groningen, The Netherlands Lines: 9