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From: mrice@caen.engin.umich.edu (Michael Rice)
Newsgroups: comp.os.msdos.programmer
Subject: Re: Critical error interrupt handler
Message-ID: <1990Aug15.173133.15728@caen.engin.umich.edu>
Date: 15 Aug 90 17:31:33 GMT
References: <1990Aug15.071209.15432@caen.engin.umich.edu> <758@idacrd.UUCP>
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Organization: University of Michigan Engineering, Ann Arbor
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In article <758@idacrd.UUCP> mac@idacrd.UUCP (Robert McGwier) writes:
>From article <1990Aug15.071209.15432@caen.engin.umich.edu>, by mrice@caen.engin.umich.edu (Michael Rice):
>> Hello!  I am trying to write a critical error interrupt handler (INT 24)
>> for my Turbo C program.  I am having a bit of a problem.  I have used the
>> example in the "Turbo C Bible" as a skeleton, but I am not having too much
>> luck.  I assume I am somewhere re-entering DOS in the handler which is
>>                           printf("ERROR: Drive %c is not ready.",dletter);
>> }
>
>
>
>Printf calls DOS.
>
I have the strange feeling that both getch() and printf may be calling
DOS.  I believe one can call DOS functions 00 - 0C only.  If this is
true I think both these could be accomplished without being illegal,
but they don't seem to be.  Also I am VERY disappointed in the example
in the Turbo C Bible.  They should at least have legal code.
Thanks.
>