[20 points] CPI/MIPS Consider two different implementations, M1 and M2, of the same instruction set. There are five classes of instructions (A, B, C, D, and E) in the instruction set. M1 has a clock rate of 2,850 MHz and M2 has a clock rate of 3,300 MHz. The average number of cycles for each instruction class and their frequencies (for a typical program) are as follows: Frequency Instruction Class Machine M1 - Cycles/Instruction Class 1 1 3 5 12 Machine M2- Cycles/Instruction Class 2 2 3 A B D E 45% 30% 15% 5% 5% 4 5 (a) Calculate the average CPI for each machine, M1, and M2. (b) Calculate the average MIPS ratings for each machine, M1 and M2