a) Explain why CISC may be more advantageous than RISC when memory is

expensive.

(b) In the lecture notes, an example of multiplication of 5 and 10

was given in CISC instructions versus RISC instructions. Although the RISC

instructions were longer (ve instructions versus three instruction in CISC), it

was calculated to take a shorter time (13 CPU cycles compared to 32 cycles for

CISC). How can a longer RISC program fragment take less time than a shorter

CISC program fragment?