5 IF PEEK(16844) <> 237 THEN POKE -4852, PEEK(16843) : POKE -4851, PEEK(16844) : POKE 16843, 9 : POKE 16844, 237
6 IF PEEK(16844) <> 173 THEN POKE -21236, PEEK(16843) : POKE -21235, PEEK(16844) : POKE 16843, 9 : POKE 16844, 173
