1  REM O'SCOPE 
    2 REM LOL Simmonds 1989
   10  ON ERROR GOTO120 
   11  MODE7
   12  PRINT""
   13  PRINT""
   14  PRINT"" 
   15  PRINT "THIS WILL DISPLAY A TRACE FROM ADVAL1." 
   16  PRINT "WAVING YOUR HAND ACROSS THE BACK OF THE" 
   17  PRINT "COMPUTER WILL MAKE THE TRACE BIGGER." 
   18  PRINT"PRESS THE SPACE BAR TO CONTINUE OR HIT"
   19  PRINT"THE ESCAPE KEY TO END." 
   20  REPEAT UNTIL GET=32
   30 MODE0:VDU23;8202;0;0;0;
   40 CLS
   50 FORZ%=1TO1200STEP3
   60 B=ADVAL1:A%=B/64
   70 IFZ%=1PLOT4,Z%,A%
   80 PLOT5,Z%,A%
   90 NEXT
  100 GOTO40
  120  MODE7
  121  PRINT""
  122  PRINT""
  123  PRINT""
  124  PRINT"IF YOU ENJOYED THIS GAME, YOU MAY LIKE"
  125  PRINT"TO TRY THIS; TYPE L.,100 AND THEN CHANGE";
  126  PRINT"TO MODE2 IN LINE 30.  TO GIVE COLOURS,"
  127  PRINT"ADD THE LINE 65 GCOL 0,RND(Z%) -RUN THIS"; 
  128  PRINT"AND SEE WHAT HAPPENS!  YOU CAN ALSO TRY ";
  129  PRINT"PLAYING  WITH THE VALUE OF B/96 eg. B/64" 
  130  END