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From: vivekian <vivekaseeja AT gmail DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Different values for __djgpp_base_address
Date: Mon, 15 Jun 2009 14:30:08 -0700 (PDT)
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hi,

A part of a program I am writing requires me to convert Physical to
Virtual addresses.
The code is :

void * PhysicalToVirtual(unsigned int PhysicalAddress)
{
   return (unsigned char *)(unsigned int)(PhysicalAddress -
__djgpp_base_address);
}

For some reason __djgpp_base_address reads as 0x100000000 which does
not look right, since dereferencing virtual addresses is throwing
segmentation faults.
It shows a value of 0x00311000 as part of another working program
which is good.

Can the value of  __djgpp_base_address change on the same system ?
Is there something I am missing here ?

thanks in advance,
vivekian