10 REM 'TRACE' TEST PROGRAM
15 DEF TRACE=TRON
16 DEF NOTRACE=TROFF
20 PRINT "'TRACE' TRACES EACH LINE"
30 TRACE
40 GOTO 90
50 PRINT "UNTIL TURNED OFF BY"
60 NOTRACE
70 PRINT "THE 'NOTRACE' STATEMENT"
80 GOTO 110
90 PRINT "THAT FOLLOWS THE 'TRACE' STATEMENT"
100 GOTO 50
110 PRINT "AS ILLUSTRATED BY THIS LINE"
999 END
