Question

6. What are the drawbacks for implementing multicycle operations in a single clock cycle by slowing down the clock? a. The pipeline control becomes more complex. b. Causes severe degradation of performance, as all otheroperations are also slowed down c. Additional types of data hazards can show up. d. None of the above.

in architecture

Answer 1

6.By slowing down the clock for multicycle operations causes severe degradation of performance, as all other operations are also slowed down. Therefore correct answer is b.

7.All of the options can occur when multicycle operations are allowed in the execution unit (EX stage).Therefore correct answer is d.

8.Loop unrolling exposes more instruction level parallelism that the compiler can exploit using instruction scheduling.Therefore the objective of loop unrolling is to replicate the body of a loop so that the compiler can carry out instruction scheduling to reduce stall cycles. Therefore the correct option c.