From: "Markus Meng" <meng DOT engineering AT bluewin DOT ch>
Newsgroups: comp.os.msdos.djgpp
Subject: [Help] Application Crashes ... due to SIGSEGV ...
Date: Wed, 30 Apr 2003 15:36:19 -0000
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Hi all,

I focus the following problem that I actually doesn't know how to solve it.
I did write a software for testing a PC104 hardware board.

The first development was made on Windows 98 using LCC-WIN32
The program works fine. It mainly consists of two parts
a.) a small part reading/writing io registers of the card
b.) the remaining larger part doing read/write accesses on the memory
location
0x000D0000...0x000D0000

It works fine under windows 95/98

Now I went on my 2nd Windows XP machine and did the following.

a.) Download DJGPP compiler system for 2000/XP
b.) compiled everything - with minimal changes - and transferred the
compiled program to a native DOS machine having 64 megs of ram.
In the same directory I stored the the files from the csdpmi5b.zip
archive. Now the following happens:

The application comes up printf to the screen and user input seems
to work. Access to the IO space of the DOS based PC work as well

However the application crashes as soon as some of the memory location
0x000D0000...0x000D0000 are being accessed.

What did I oversee, it's plain ANSI-C and it worked with LCC-WIN32??

Any help would be appreciated

markus


-- 
Mit freundlichen Grüssen
Markus Meng

P.S. Achtung wir haben eine neue FAX-Nummer
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