X-Authentication-Warning:	delorie.com: mail set sender to djgpp-bounces using -f
Date:	Sun, 13 Aug 2006 23:05:26 -0400
Message-Id:	<200608140305.k7E35Qiq023044@envy.delorie.com>
From:	DJ Delorie <dj AT delorie DOT com>
To:	OliverSzasz AT oncotherm DOT org
CC:	djgpp AT delorie DOT com
In-reply-to:
	<714817CA32ED3143B96B69D0D3574C5A311B64 AT server DOT oncotherm DOT oncotherm DOT org>
	(OliverSzasz AT oncotherm DOT org)
Subject:	Re: copy from physical memory
References:	<714817CA32ED3143B96B69D0D3574C5A311B64 AT server DOT oncotherm DOT oncotherm DOT org>
Errors-To:	nobody AT delorie DOT com

Most DPMI servers don't support the physical mapping calls.  For DJGPP,
there's two ways of doing it:

1. If the address is in DOS memory, use dosmemget() or dosmemput().

2. Otherwise, the easiest way to do it is to use the "nearptr"
   routines (see <sys/nearptr.h> and related docs).  This gives you
   essentially unlimited access to the physical address space,
   assuming your OS allows such things.

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