input portd.7

input portd.6

input portd.5

main:

if portd.7=1 then

if portd.6=1 then

if portd.5=1 then

high portc.1

high portc.2

high portc.3

else

high portc.0

Low portc.1

low portc.2

low portc.3

endif

else

high portc.0

Low portc.1

low portc.2

low portc.3

endif

else

high portc.0

Low portc.1

low portc.2

low portc.3

endif

goto main