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From:	Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Interrupt handler question
Date:	11 Apr 2004 12:37:00 GMT
Organization:	Aachen University of Technology (RWTH)
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Joel <jbs30000 AT aol DOT com> wrote:
> Anyway, is it possible to call the old routine stored with
> _go32_dpmi_get_real_mode_interrupt_vector while in the middle of the
> new routine?

I doubt it.  The problem being that the end of an interrupt handler is
signalled by a IRET instruction.  The old routine will be ending in
such an IRET.  So at the minimum, you'ld have to use the DPMI simulate
interrupt call method to call it, and I'm not sure that's allowed from
inside an interrupt handler.

-- 
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.

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