From: sandmann AT clio DOT rice DOT edu (Charles Sandmann)
Message-Id: <9603200120.AA13489@clio.rice.edu>
Subject: Re: DPMI at boot time??
To: Frank DOT Denis AT epita DOT fr (frank denis)
Date: Tue, 19 Mar 1996 19:20:00 -0600 (CST)
Cc: djgpp AT delorie DOT com
In-Reply-To: <199603191327.NAA27149@aux.epita.fr> from "frank denis" at Mar 19, 96 01:27:57 pm
Content-Type: text
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>   What I'd like to do is to launch a DJGPP binary actually at boot time,
> ie. from the boot sector of a floppy disk.
>   How would it have been possible ?

You would need to write a boot sector which could load a secondary bootstrap,
which would load the image.  The image would need to be linked with a custom
libc (which you must write) which only calls the bios (or read/writes 
ports directly - DOS won't be present).  You would need to handle your own
file I/O as writes directly to the disk - in short - basically your own
operating system.