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From: cys@engin.umich.edu (CAO  YUSONG )
Newsgroups: comp.lang.pascal
Subject: TP: How to terminate a TSR program. HELP!
Message-ID: <1991Feb21.170654.3759@engin.umich.edu>
Date: 21 Feb 91 17:06:54 GMT
Sender: news@engin.umich.edu (CAEN Netnews)
Organization: University of Michigan Engineering, Ann Arbor
Lines: 18


I am writing a TP program as an exercise. The program is a TSR clock which
displays the time on screen. The program captures the interrupt $1c. After
the initialization. I use "Keep(3)" to terminate the program to hope it can
stay resident. My problems are:
  1. After I run the program, DOS gave me the following message
     "Memory allocation error
      Can not load COMMAND.COM" 
     Then the machine freeses. I have to hard-boot it.
     I didn't compile it with "Force FAR calls" on, can that be a problem?
  2. In the intertupt handling routine, I couldn't seem to use Readln, and
     Keypressed, but I could use other stuff like GetTime, Writeln, etc. ..
     Could someone explain?

Thanks.
Please use address jzeng@norway.biop.umich.edu if you want to e-mail.

-- Jim Zeng