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__dpmi_physical_address_mapping
===============================

Syntax
------

     #include <dpmi.h>
     
     int __dpmi_physical_address_mapping(__dpmi_meminfo *_info);

Description
-----------

Please refer to DPMI Specification: for details on DPMI function   
call operation.  Also see DPMI Overview: for general information.   

DPMI function AX = 0x0800

Maps a physical device (like a graphics buffer) to linear memory.  Fill
in the physical address and size (in bytes).  On return, the address is
the linear address to use.

Return Value
------------

-1 on error, else zero.