Reserved

Input

Output

AX

 49h       AX

BX

         BX

CX

         CX

DX

         DX 
     This function was used  in  EMS 3.0, but was no longer documented
     in  EMS  3.2.  It formerly returned the page mapping register I/O
     port array. Use of  this  function is discouraged, and in EMS 4.0
     may conflict with the use of the new functions 16 through 30 (4Fh
     through 5Dh) and  functions  10  and  11. Functions 10 and 11 are
     specific to the hardware on  Intel expanded memory boards and may
     not work correctly on all vendors' expanded memory boards.


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