EXIT
     Ends the editing session and writes out any modified buffers.
     By default, DECTPU writes out a modified buffer using the output file
     specification associated with the buffer.  If there is no associated
     output file specification, DECTPU prompts you for one.
     Buffers having the NO_WRITE attribute are not written out.
  Related topics
     QUIT   SET(NO_WRITE)   SET(OUTPUT_FILE)   WRITE_FILE