Int 67H [EMS 3.0] Function 42H (66) Get number of pages

Obtains the total number of logical expanded memory pages present in the system and the number of pages that are not already allocated.

Call with:

AH = 42H

Returns:

If function successful

AH = 00H

BX = unallocated pages

DX = total pages

If function unsuccessful

AH = error code

Notes:

The application need not have already acquired an EMM handle to use this function.

[EMS 4.0] See also Int 67H Function 59H Subfunction 01H.