Date: Wed, 19 Feb 1997 16:53:53 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: KG AT dancall DOT dk
cc: djgpp AT delorie DOT com
Subject: Re: <none>
In-Reply-To: <C@dancall.dk>
Message-ID: <Pine.SUN.3.91.970219164918.23655C-100000@is>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII


On 19 Feb 1997 KG AT dancall DOT dk wrote:

> 1.  Using interrupt the way you describe in INFO replacing old 
> interrupt vector with a new vector and saving the old vector, the 
> program crasses.
>       Instead I would like to make an assembler interrupt handler, but 
> I do not know how.
>       The handler will need to access about 64K memory and must run in 
> procted mode.
>       Can you please explane how I make an assembler interrupt handler, 
> demonstrating it in an example ?

Did you read chapters 17 and 18 of the DJGPP FAQ list?  If not, please 
read them.  The FAQ is available as v2/faq210b.zip from the same place 
you get DJGPP.  Section 22.2 of the FAQ includes pointers to a couple of 
packages with examples and explanations of how to write interrupt 
handlers with DJGPP.