Question: Assume a five-stage single-pipeline microarchitecture (fetch, decode, execute, memory, write-back) and the code in figure below. All ops are one cycle except LW and SW,

Assume a five-stage single-pipeline microarchitecture (fetch, decode, execute, memory, write-back) and the code in figure below. All ops are one cycle except LW and SW, which are 1 + 2 cycles, and branches, which are 1 + 1 cycles. There is no forwarding. Show the phases of each instruction per clock cycle for one iteration of the loop. Assume a static branch predictor, capable of recognizing a backwards branch in the Decode stage. Now how many clock cycles are wasted on branch overhead?

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