Timing Problem

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#180

From: Dick Zeitlin
Date: Fri, 31 Jul 1992 13:27

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JY> .                           The time should be accurate to at
  > .least 10 ms but the clock() function in C and the other time
  > .functions I've looked at are only accurate to 55 ms (because
  > .it's updated 18.2 ticks/sec).

Read the timer-0 (or maybe it's timer-1) register at Port 0x40, which is
used to generate that 18.2/sec tick.  That register is incremented at
approx. 1.2 mHz.  It's a 16 bit register, and should provide sufficient
resolution for your needs. <~>

        D/


 * OLX 2.2 * Dick.Zeitlin%acc1bbs@ssr.com

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Path: arc1-ca.pugleaf.net!sparky!uunet!hotmomma!acc1bbs!dick.zeitlin
From: dick.zeitlin%acc1bbs@ssr.com (Dick Zeitlin) 
Newsgroups: comp.os.msdos.programmer
Subject: Timing Problem
Message-ID: <1805.102.uupcb@ssr.com>
Date: 31 Jul 92 13:27:00 GMT
Distribution: world
Organization: Advanced Computer Concepts BBS, New Rochelle, NY 914-654-1981
Reply-To: dick.zeitlin%acc1bbs@ssr.com (Dick Zeitlin) 
Lines: 15