Date: Tue, 10 Jan 1995 09:30:21 +0500 From: hvb AT netrix DOT com To: djgpp AT sun DOT soe DOT clarkson DOT edu, badcoe AT bsa DOT bris DOT ac DOT uk Reply-To: hvb AT netrix DOT com > > So how's it done ? How do I find the real-address of a protected-mode address ? You need to work out the entry from the GDT (Global Descriptor Table), see the Intel manual. You have to read the Control Register (CR0-3) then work out where every thing is. I had some sample code, but I cannot find it right at this instance. I will post it on this group when I find it. ============================================================== Hung Bui Internet: h DOT bui AT ieee DOT org Netrix Corporation Phone: +1 703 793 1016 13595 Dulles Technology Drive Fax: +1 703 713 3805 Herndon Va 22071 ==============================================================