- Call Mul from a procedure Create a procedure, and in that procedure multiply two numbers together using mul. Then call the procedure from the main procedure.

- Do bitwise mulitiplication using only shift and add statements In your multiplication procedure multiply two numbers not using mul but by combining a fixed number of shift and add commands. For this part you only need to be able to handle 8 bit numbers so you don't need to use a loop for this part

- Add loop to bitwise multiplication procedure Instead of using a fixed number of bitwise multipliers, use a loop to run the bitwise multiplication