Compatibility: DPMI 0.9+
Expects: AX    0700H
BX:CX starting linear address of pages to mark
SI:DI size, in bytes, of region to mark
                                                                  
Returns: CF    NC (clear) if successful; else AX = DPMI Error Code
                                                                  
Info: Notifies the DPMI host that a specified range of pages can be
placed at the head of the page-out candidate list.  The host will
swap them out the next time memory is needed, even if they have
been accessed recently.

This lets you optimize virtual memory access.  If you know that
some region will not be needed for a while (or may be regenerated
easily), let it be swapped out in preference to some other memory
that may soon be needed.

See Also: DPMI API
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INT 31H 0700H: Mark Page as Demand-Paging Candidate