Int 14 Fn 83  - Couriers.com - Start Input                                 [S]

   AH = 83h
   ES:BX -> circular input buffer
   CX = length of buffer
       (should be at least 128 bytes if input flow control enabled)

See Also: AH=18h,AH=87h,AH=8Dh,AH=A5h"BAPI"