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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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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

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