Date: Fri, 14 Apr 1995 12:14:41 +0300
From: eliz AT is DOT elta DOT co DOT il. (Eli Zaretskii)
To: djgpp AT sun DOT soe DOT clarkson DOT edu, BST AT iis DOT fhg DOT de
Subject: Re: yet another interruption

> How do I initialize the IRQ15 with intnr 0x71 correctly?
> It should be a hardware-interrupt, not a DOS-int86-like one.

Did you read the DJGPP FAQ list?  It includes some discussion of
how to use hardware interrupts, in Chapter 18.  You can get the
FAQ list as faq100.zip from the same place you get DJGPP.