cannot access start PC = address_value

    Facility: DEBUG, VMS Debugger

    Explanation: Location address_value is not an accessible address
    and therefore cannot be executed. This is often caused when
    a GO command with no address specification is entered after
    the program has terminated. The debugger tries to execute an
    instruction at location 0, which is not accessible.

    User Action: Specify a different address specification in the GO
    command or, if the program has terminated, you can exit from the
    debugger and initiate the program with the DCL command RUN.