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Article #205Reading from the CMOS clock
From: Nick Smith
Date: Tue, 01 Sep 1992 10:41
Date: Tue, 01 Sep 1992 10:41
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1362 bytes
I'm having a little trouble with some code I'm writing at the moment: For various essential reasons, I have to turn off interrupts for upto several minutes at a time. What I *want* to do, is preserve the real time clock (I know how long I will have interrupts disabled exactly) I know that the soft copy of the realtime clock will halt during this period, but I felt sure that the CMOS (hardware) clock, which after all works when the machine is switched off, would continue happily with no interrupts ... I am using OS_Word,14,1 which claims to read the real time from CMOS clock in BCD (ug) format. Thing is, it contains the same value before & after the code with no ints. has been called. So what am I doing wrong ???! -- Nick Smith, Churchill College, Cambridge, UK. %$% Email: nas20@uk.ac.cam.phx sig quote wanted - must be under guarantee. $%$ --- Usual disclaimer. ---
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Newsgroups: comp.sys.acorn.tech Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!warwick!pavo.csi.cam.ac.uk!cl.cam.ac.uk!nas20 From: nas20@cl.cam.ac.uk (Nick Smith) Subject: Reading from the CMOS clock Message-ID: <1992Sep1.104148.12279@infodev.cam.ac.uk> Sender: news@infodev.cam.ac.uk (USENET news) Nntp-Posting-Host: caxton.cl.cam.ac.uk Reply-To: nas20@cl.cam.ac.uk (Nick Smith) Organization: U of Cambridge Comp Lab, UK Date: Tue, 1 Sep 1992 10:41:48 GMT Lines: 18