I need help with this question as I was sick for the lecture and can't solve it.

Thank you in advance for your help.

a. Using an appropriate diagram, show how an 8x8 bit multiplier can be implemented using 256x8bit ROM modules and any additional circuitry.

b. Briefly describe the architecture of a cellular binary multiplier. Illustrate your explanation by drawing a block diagram of a 2x2 bit cellular multiplier.

I can solve the rest of the problem off some notes from a friend.