FEPF created 12/6/81 after furore about EMAS cntrl D has died
down. Changes to ITPS, RJES, BSPS


ITPS
      Buffer address validation code added.
      Delay int Y if input not enabled till console nexts attempts
         to log on
      Add special INT 0 to send terminal address into EMAS N.B. in
        UKC version the node number is always zero.
      The hardware seg is now seg 0 as the code is > 1 segment


RJES
      Includes RDE code for page counting for remote printers.
      Seg 0 used as hardware seg as code >1 seg.
      Buffer address validation code added.
      Check that high level control messages are for stream 5,
         (hopefully this is not now useful).


BSPS
      Double buffering on input added.
      Correction of BSP protocol 'error'.