1.
(a) A benchmark program is used to evaluate the performance of a RISC machine. The following information is recorded.
Instruction count (IC) = 50 Clock rate = 0.1 ns (nano second) Average CPI of load/store instructions = 8 Average CPI of other instructions = 5 (Note: CPI is clock cycles used to execute per instruction) Frequency of load/store instructions in the benchmark program = 20%
Calculate the CPU time for executing the benchmark program in the RISC machine. (6 marks)