2. (6 pts) Consider executing the following code on the pipelined datapath that we discussed in class. a). During the 5th cycle, which registers are being read and which register(s) will be written (using the register file)? sub St7, St9, St8 add St3, St4, St9 sub St6, St5, St4 sub St5, St2, St6 add St2, St3, St2 b). Explain what the forwarding unit is doing during the 5th cycle of execution. Which registers are being
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