Date: Thu, 7 Oct 1999 19:05:08 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: kalum AT myflat DOT com
cc: djgpp AT delorie DOT com
Subject: RE: deriving the interrupt vector
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On Thu, 7 Oct 1999 kalum AT myflat DOT com wrote:

> In int86x you can also pass the segment registers(ES,DS ...etc) 
> through and additional SREGS structure.

Actually, I'd advise against using int86x, because the segment registers 
need to be set up in a way that will totally surprise a typical DOS 
programmer, and more often than not crash your machine.  Use __dpmi_int 
instead (in the case that is discussed in this thread neither int86x nor 
__dpmi_int are not needed).

> The above are the easiest but you might also want to check out the 
> _go32_dpmi_simulate_int  function.

This latter function will simulate an interrupt in real-mode, not in 
protected mode.  For protected mode, either use int86, or emit a literal 
INT nn instruction in inline assembly.