\ LED PORT E BIT7
\ SWITCH PORT B BIT3

: LED_ON 0 70 P! ;
: LED_OFF 80 70 P! ;

: TST BEGIN 40 P@ 8 AND IF ." 1" ELSE ." 0" THEN ?KEY UNTIL ;
: TST2 BEGIN 40 P@ 8 AND IF LED_ON ELSE LED_OFF THEN ?KEY UNTIL ;