100 I=PEEK(764)›110 ? "I=";I:REM PRINT THE VALUE OF THE KEY PRESSED›120 POKE 764,255:REM TELL THE COMPUTER THAT NO KEY WAS PRESSED›130 FOR PAUSE=1 TO 500:NEXT PAUSE:REM SLOW DOWN THE MACHINE SO YOU CAN REAS THE RESULTS›140 GOTO 100›