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dosmemget
=========

Syntax
------

     #include <sys/movedata.h>
     
     void dosmemget(int offset, int length, void *buffer);

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

This function transfers data from MS-DOS's conventional memory space to
the program's virtual address space.  The OFFSET is a physical address,
which can be computed from a real-mode segment/offset pair as follows:

     offset = segment * 16 + offset;

The LENGTH is the number of bytes to transfer, and BUFFER is a pointer
to somewhere in your virtual address space (such as memory obtained
from `malloc') where the data will go.

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

None.

Example
-------

     unsigned short shift_state;
     dosmemget(0x417, 2, &shift_state);
     if (shift_state & 0x0004)
       /* Ctrl key pressed */;