Xref: news2.mv.net comp.os.msdos.djgpp:5580
From: Charles Sandmann <sandmann AT clio DOT rice DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Compatibility v1.12 vs v2
Date: Tue, 02 Jul 1996 08:17:55 CDT
Organization: Rice University, Houston, Texas
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Message-ID: <31d92183.sandmann@clio.rice.edu>
References: <4r8tju$bv7 AT tandem DOT CAM DOT ORG>
Reply-To: sandmann AT clio DOT rice DOT edu
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

> General Protection Fault at eip=00003562
> eax=0000003f ebx=00001708 ecx=00003e80 edx=0000003f esi=00058000 edi=d0000000

The contents of EDI look suspiciously like the old graphics mapping area in 
V1.x, which was never supported under DPMI (ie Windows) under V1.x and is
not supported at all under V2.x.  You need to re-write the code to handle
bank switching and use sys/farptr.h (preferred) or sys/nearptr.h, or 
continue to use V1.x.