Int 67H [EMS 4.0] Function 4FH (79) Subfunction 01H Restore partial page map

Restores the state of a subset of the expanded memory page-mapping registers.

Call with:

AH = 4FH

AL = 01H

DS:SI = segment:offset of buffer (see Note)

Returns:

If function successful

AH = 00H

If function unsuccessful

AH = error code

Note:

The buffer contains mapping information and must have been prepared by a previous call to Int 67H Function 4FH Subfunction 00H.