Int 67H [EMS 3.2] Function 4EH (78) Subfunction 03H Get size of page map information

Returns the size of the buffer that is required to receive page-mapping information using Int 67H Function 4EH Subfunctions 00H and 02H.

Call with:

AH = 4EH

AL = 03H

Returns:

If function successful

AH = 00H

AL = size of buffer (bytes)

If function unsuccessful

AH = error code