From:	"Mike McDonald" <kelek AT engin DOT umich DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Urgent Question: Interrupt handling
Date:	9 Oct 1996 02:51:14 GMT
Organization:	University of Michigan Engineering, Ann Arbor
Lines:	21
Message-ID:	<01bbb58c$a6acc510$c61ed58d@enigma>
NNTP-Posting-Host:	enigma.engin.umich.edu
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

    I, being new to djgpp and AT&T assembly, am programming a keyboard
interrupt handler for a simple DOS game under djgpp.  I set the new vector
using DOS function 35h but whenever the interrupt is called, the program
immediately exits.  The interrupt handler does nothing except a nop and
return:

	__asm__ __volatile__ ("
	   _Keyboard_Driver:\n
		nop\n
		iret"
	);

     Am I missing something about programming interrupt handlers under
djgpp?  I need to finish this handler ASAP.  Could anyone post or e-mail me
some sample code for setting up a rudimentary interrupt handler?


- Mike McDonald
kelek AT engin DOT umich DOT edu

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