internal debugger coding error in using vector instruction(s)
    Facility: DEBUG, VMS Debugger
    Explanation: An internal debugger error has been encountered when
    attempting to execute a vector instruction. Messages will follow
    this text which will more fully explain the error.
    User Action: If the error is reproducible, submit a Software
    Performance Report and, if possible, enclose both a copy of
    the program being debugged and a logged debugging session that
    reproduces the error.