Date: Sun, 22 Dec 1996 09:52:33 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: Killion <killion AT ro DOT com>
cc: djgpp AT delorie DOT com
Subject: Re: Calling int 2Fh with DJGPP
In-Reply-To: <32ba45e0.1085361@news.ro.com>
Message-ID: <Pine.SUN.3.91.961222095035.29376U@is>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII


On Fri, 20 Dec 1996, Killion wrote:

> I'm trying to port C source code to use with DJGPP. This code accesses
> INT 2Fh (the multiplexer, I believe) to communicate with the CD-ROM
> drive. 
> 
> Unfortunatly, INT86 and INT86X do not seem to support this call (If I
> recall corectly, it supports INT21h and other non-pointer-passing
> calls). I don't know enough about GAS or protected mode to write my
> own workaround. Does anyone have any suggestions?

It's all explained in the DJGPP FAQ list (v2/faq202b.zip from the same 
place you get DJGPP), sections 18.1, 18.2 and 18.4.