SPECIAL-NAMES. UPSI-0 ON STATUS IS T0 OFF STATUS IS F0 UPSI-1 ON STATUS IS T1 OFF STATUS IS F1 ⋮ UPSI-7 ON STATUS IS T7 OFF STATUS IS F7
IF T0 DISPLAY "UPSI-0". IF T1 DISPLAY "UPSI-1". ⋮ IF T7 DISPLAY "UPSI-7".