Computers and Technology, 15.10.2020 09:01, thegamingkid914

The data for this problem has been replicated here for your convenience. HUEVOS FRIJOLES
Floating Point IC 16 x 10^6 4 x 10^6
Integer IC 4 x 10^6 8 x 10^6
Average CPI 6 4
Clock Cycle Time 1 x 10^-12 32 x 10^-9

In the original Huevos workload, FP ALU instructions make up 80% of the workload. The remaining 20% of the workload are Int ALU instructions, split so that 4% of the original instructions are control instructions. Non-control Int ALU instructions make up the remaining 16% of the workload. Suppose that we modify the Huevos architecture further so that FP ALU instructions take 7 clock cycles (cc); control instructions take 4 cc, and all other instructions take 1 cc. Then, we install special purpose hardware in Huevos that gives us perfect prediction of ninety percent (95%) of jump instructions, reducing their CPI to 1.

Required:
Write an expression for the average CPI with the new hardware assuming that two thirds of the original control instructions are jumps.

Answers: 2

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The data for this problem has been replicated here for your convenience. HUEVOS FRIJOLES
Flo...