If the Expanded Memory Manager supports only pages of standard size, the values returned by this function are the same as those returned by Int 67H Function 42H.Obtains the total number of raw expanded memory pages present in the system and the number of raw pages that are not already allocated. Raw memory pages may have a size other than 16 KB.
Call with:
AH = 59H
AL = 01H
Returns:
If function successful
AH = 00H
BX = unallocated raw pages
DX = total raw pages
If function unsuccessful
AH = error code
Note:
If the Expanded Memory Manager supports only pages of standard size, the values returned by this function are the same as those returned by Int 67H Function 42H.