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Mail Archives: djgpp/1996/06/10/18:29:48

Date: Mon, 10 Jun 1996 18:12:52 -0400 (EDT)
From: Justin Ward <justin AT yoss DOT canweb DOT net>
To: djgpp AT delorie DOT com
Subject: software interrupts, one step at a time
Message-ID: <Pine.BSF.3.91.960610180845.15796G-100000@yoss.canweb.net>
MIME-Version: 1.0

Hi. I've been trying very hard for a while now to figure out how you trap 
an interrupt in DJGPP. I read the faq and was thouroughly lost. The only 
experience I've had with this was long ago, in the days that professional 
programmers still swore by real mode and dos 5.0 was the norm (not that I 
was a professional). Real mode is easy. Call one function to store old 
isr, call second function to put in new isr, call second function with 
different argument to restore old isr when you're through. Could some 
brave soul please take the time to walk me (and probably many others) 
through the steps needed to hook an interrupt??

Justin
I was gonna make up a sig, but decided against it.

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