INPUT
LDI R1, #240
LDI R2, #15
MOV R0, PIN
AND R3, R0, R1
AND R4, R0, R2
SHL R4, R4
SHL R4, R4
SHL R4, R4
SHL R4, R4
AND R9, R3, R4 // R9: POSSUI 4(X.Y)  4(0)
AND R3, R0, R2 // mascara 0000YYYY
AND R4, R0, R1 // mascara XXXX0000
SHR R4, R4
SHR R4, R4
SHR R4, R4
SHR R4, R4 // resultado: 0000XXXX
OR R5, R3, R4 // resultado | 0000YYYY
OR R9, R9, R5 // R9: POSSUI 4(X.Y) 4(X|Y)
OUTPUT R9
JMP #19