Question: 6. Assume that computer M1 has CPU clock rate 200MHz, and supports four classes of instructions: ALU, Iw, sw, branch/jump. Iw has CPI =

6. Assume that computer M1 has CPU clock rate 200MHz, and supports

6. Assume that computer M1 has CPU clock rate 200MHz, and supports four classes of instructions: ALU, Iw, sw, branch/jump. Iw has CPI = 5, sw has CPI =4, ALU instruction has CPI = 4, and branch/jump has CPI = 3. The following program P is used in testing the computer performance: Loop: add $10, $zero, $zero or $t0, $t1, $1 subu $t1,$t1,$56 Iw $t0, 0($t1) add $t0, $10, 1 sw $t0, 0($11) and $53, $s3, $4 bne $t0, $55, Loop a. What is the average CPI for program P? b. Another computer M2 with clock rate of 1GHz has the same performance as computer M1 when it runs the program P. What is the average CPI of computer M2?

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