[AT]
Expects: AH    88H
                                                                  
Returns: AX    amount of contiguous memory above 1MB, in 1K blocks.
                                                                  
Info: This returns the total amount of memory above 1MB.  It is the
same number as found in CMOS Memory addresses 17H-18H.

See Also: INT 15H (extended AT services)
- -

INT 15H 88H: Get Extended Memory Size