Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!newstop!grapevine!rtangri1!rajesh
From: rajesh@rtangri1.EBay.Sun.COM (Rajesh Tangri)
Newsgroups: comp.windows.ms
Subject: Read real memory from Windows Application
Message-ID: <426@grapevine.EBay.Sun.COM>
Date: 11 Oct 90 17:48:27 GMT
References: <90280.143318CC65MGTW@MIAMIU.BITNET> <kF5sq3w163w@zooid.UUCP>
Sender: news@grapevine.EBay.Sun.COM
Reply-To: rajesh@rtangri1.UUCP (Rajesh Tangri)
Organization: Sun Microsystems Federal, Inc., Milpitas, CA, USA
Lines: 14


I have a question regarding Windows 3.0 SDK.  I need to read physical
memory from Windows application running in 386 protected mode.  So,
the question simply is: "How to load data segment and offset into CPU
registers in  a Windows Application running in 386 protected mode ????

A friend suggested using "fp_segments" Microsoft C 6.0 routine; but this
is for 386 real mode only.  Also, on page: 16.11 of SDK Guide to
Programming, Windows describes how to use Global Selector Constants for
doing memory mapped I/O.  I wrote some _asm inline assembly to read from
memory; but "__D000H " remains an undefined label.  Which Windows
include file defines this global selector constant ???

Please reply directly to me.  I will post a summary to the net.