Date: Fri, 02 Nov 2001 11:11:21 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: elj AT sky1 DOT elj DOT org (Edwin Johnson)
Message-Id: <5137-Fri02Nov2001111121+0200-eliz@is.elta.co.il>
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CC: djgpp AT delorie DOT com
In-reply-to: <slrn9u2jt7.se.elj@sky1.elj.org>
Subject: Re: Interrupt handled RS232
References:  <slrn9u2jt7 DOT se DOT elj AT sky1 DOT elj DOT org>
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> Newsgroups: comp.os.msdos.djgpp
> From: elj AT sky1 DOT elj DOT org (Edwin Johnson)
> Date: 1 Nov 2001 19:32:02 GMT
> 
> Any suggestions or help or sources for such routines would be appreciated
> and would be glad to send code for anyone to look at.

Please post the important parts here.  In particular, the code which
installs the interrupt handler is the crucial detail.

I suggest to begin with the variant which installs protected-mode
handler, since it should be the most straightforward one.

In case you didn't already, please read section 18.9 of the DJGPP FAQ
list, perhaps it will give some clues.