$(50$ pts$)$ The Hamming distance $($HD$)$ between two binary words A and $B$ are defined as the hamming weight of the bit positions in which the words differ. For example, the Hamming distance between $A=10110101$ and $B=11001111$ is HD $=5($Since$,$ two words are different at bit positions $6,5,4,3,1$ total making $HD=5).$

a$.(30$ pts$)$ Write an ARM Cortex MO$+$ assembly code to calculate the Hamming distance between two $32-$bit words stored in R$1$ and R$2$ registers. Store the HD calculation result in RO$.$ Explain the execution of your code and provide the screen$-$shots that show correct operation.

b$.(20$ pts$)$ Write a C function to perform the same task. Explain the execution of your code and provide the screen$-$shots that show correct operation.