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From: cjveenm@cs.vu.nl
Newsgroups: comp.sys.ibm.pc,comp.lang.pascal
Subject: chaining interrupts
Message-ID: <4543@solo5.cs.vu.nl>
Date: 15 Nov 89 16:48:53 GMT
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From: cjveenm@cs.vu.nl ()
Newsgroups: comp.sys.ibm.pc
Subject: chaining interrupts
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	I have written several own interrupt handlers for the ibm pc,
and I wonder if it's possible to use the old interrupt routines by
chaining from the new one. One way to do this is by setting the old
vector on the address of an other interrupt number. A disadvantage
of this method is that you don't always know which interrupt is free
and you can run out of all possible interrupts.
	So is there an other way, from TP4 for instance:
		jmp oldvector (with inline code) 
doesn't succeed.

		thanks in advance, Cor