Write a sequence of ATmega$32$ assembly

instructions to perform the following:

a$)$ add $32$ to $86$

b$)$ store the sum in data memory location

$0120$

c$)$ initialize R$20$ to $0,$ subtract $5$ from R$20$

five times

d$)$ take the $1$ s complement of the difference

from part $c$

e$)$ output the $1$ s complement to PORTB