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dosmemgetl
==========

Syntax
------

     #include <sys/movedata.h>
     
     void _dosmemgetl(unsigned long offset, size_t xfers, void *buffer);

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

This function transfers data from MS-DOS's conventional memory space to
the program's virtual address space, using only long-word (32-bit)
transfers.  The OFFSET is a physical address, which can be computed
from a real-mode segment/offset pair as follows:

     offset = segment * 16 + offset;

The COUNT is the number of long-words 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 long shift_state;
     dosmemgetl(0x417, 1, &shift_state);
     if (shift_state & 0x0004)
       /* Ctrl key pressed */;