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  Interrupt:   21h     Function:   35h
 
  Title:       Get Interrupt Vector
 
  See also:    Set Interrupt Vector, Interrupt Vector Table,
               Terminate and Stay Resident, @GetInt
 
  Description:
 
     Obtains the address of the current interrupt handler routine for
     the specified machine interrupt. Together with Int 21h Function
     25h (Set Interrupt Vector), this function is used for maximum
     compatibility by application programs to modify or inspect the
     machine interrupt vector table.
 
     Input                     Output
 
     AH = 35h                  ES:BX = segment:offset of
     AL = Interrupt number             interrupt handler
                                    -♦-