Date: Fri, 29 Apr 94 10:15:26 -0400
From: dj AT ctron DOT com (DJ Delorie)
To: rueve AT uni-muenster DOT de
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: problem callinf DOS interrupts that use ES

> I have been unable to resolve the following problem :
> To call some software-interrupt (one of the int 0x33 services to be exact)
> I need to pass a segment-register to tell it where it can find some data 
> (the mouse-pointer).
> 
> Doing this via int86x (the one you can pass the segment-registers along with)
> does not yield the wanted results but a system crash !

use _go32_dpmi_simulate_int() instead of int86x().  There's more
overhead, but you can do pretty much anything you want with it.