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Article #2175

Re: Relative file bugs!!!

#2175
From: Fred Walter
Date: Tue, 05 Aug 1986 15:53
26 lines
1698 bytes
A couple of relative file hints :

	1) send the record number not just once but twice 
	2) pause for ~1/5th second after doing 1) before doing anything
	   else involving the disk drive
	   (this may not be as necessary but it can't hurt)
	3) if you write data to the disk pause for about 1 second before 
	   doing anything else involving the disk drive

These cut down on relative file screw-ups alot. (This from previous
experience in BASIC and assembler relative file handling).

Another thing that can (and will) cause problems is having two disk
drives online at the same time - even if their unit numbers are different.

Relative files aren't that hard ... but if you can't get them to work
I could mail you a basic program that I have written that works
(and which is being used alot) which would show you how you could do
your relative file handling. (If enough people were interested in a
relative file handling example I could post ...)

			fred

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site watmath.UUCP
Path: arc1-ca.pugleaf.net!utzoo!watmath!grwalter
From: grwalter@watmath.UUCP (Fred Walter)
Newsgroups: net.micro.cbm
Subject: Re: Relative file bugs!!!
Message-ID: <2124@watmath.UUCP>
Date: Tue, 5-Aug-86 11:53:00 EDT
Article-I.D.: watmath.2124
Posted: Tue Aug  5 11:53:00 1986
Date-Received: Wed, 6-Aug-86 08:01:45 EDT
References: <860@usl.UUCP>
Reply-To: grwalter@watmath.UUCP (Fred Walter)
Organization: U of Waterloo, Ontario
Lines: 26