1. Check all statements that are true.

Select one or more:

a. Dynamic multiple-issue processors are also known as superscalar processors

b. Pipelining and multiple issue are two primary methods of increasing instruction-level parallelism and hence throughput

c. Speculation is an approach whereby the compiler or processor guesses the outcome of an instruction to remove it as a dependence in executing other instructions

d. Flush refers to discarding instructions in a pipeline due to an unexpected event

2. Use latency is the number of clock cycles between a load instruction and an instruction that can use the result of the load without stalling the pipeline.

Select one:

True

False

3 Which of the following is true about pipeline hazards? (Check all that apply)

Select one or more:

a. Control hazard occurs when an instruction cannot execute in the proper clock cycle because the instruction fetched is not the one that is needed

b. Data hazard occurs when an instruction cannot execute in the proper clock cycle because the data needed is not yet available

c. Control hazards are usually more of a problem in integer programs

d. Data hazards can be performance bottlenecks in both integer and floating-point programs

e. Structural hazard occurs when an instruction cannot execute in the proper clock cycle because the hardware does not support