!edited 18-Dec-89
!RMON_fig.psart (chapter 2)

    +------------------+          +------  +=======================================================+
    #   I/O PAGE       #          |        # SYSTEM STACK                                          #
    +------------------+          |        +-------------------------------------------------------+
                                  |        #  MULTITERMINAL ROUTINES (ONLY MULTITERMINAL SYSTEMS)  #
          MEMORY                  |        +-------------------------------------------------------+
28K +------------------+          |        #  MAPPED-MONITOR PROGRAMMED REQUESTS                   #
    # SYSTEM           #          |        +-------------------------------------------------------+
    # DEVICE HANDLER   #          |        #  CONTEXT SWITCH ROUTINE                               #
    +------------------+  <-------+        +-------------------------------------------------------+
    # RESIDENT         #                   #  FORK PROCESSOR                                       #
    # MONITOR          #                   +-------------------------------------------------------+
    +------------------+  <-------+        #  COMMON INTERRUPT ENTRY AND EXIT                      #
    #                  #          |        +-------------------------------------------------------+
    #                  #          |        #  CLOCK INTERRUPT HANDLER                              #
    #                  #          |        +-------------------------------------------------------+
    #                  #          |        #  I/O QUEUE MANAGER                                    #
    #                  #          |        +-------------------------------------------------------+
    #                  #          |        #  MESSAGE HANDLER                                      #
    #                  #          |        +-------------------------------------------------------+
    #                  #          |        #  TT HANDLER                                           # 
    #                  #          |        +-------------------------------------------------------+
    #                  #          |        #  TTY I/O INTERRUPT HANDLERS                           #
    #                  #          |        +-------------------------------------------------------+
    #                  #          |        #  PROGRAMMED REQUESTS (SCATTERED ABOVE)                #
    #                  #          |        +-------------------------------------------------------+
    #                  #          |        #  EMT DISPATCHER                                       #
    +------------------+          |        +-------------------------------------------------------+
476 # INTERRUPT        #          |        #  ERROR PROCESSOR                                      #
 60 # VECTORS          #          |        +-------------------------------------------------------+
    +------------------+          |        #  BACKGROUND IMPURE AREA                               #
 56 # SYSTEM           #          |        +-------------------------------------------------------+
    # COMMUNICATION    #          |        #  MONITOR TABLES                                       #
 40 # AREA             #          |        +-------------------------------------------------------+
    +------------------+          |        #  FIXED OFFSETS                                        #
 36 # TRAP             #          +------  +=======================================================+
    # VECTORS          #    
  0 +==================+