5. (10 points) For five-stage pipelined datapath, please explain each line of th

Question

5. (10 points) For five-stage pipelined datapath, please explain each line of the following code and fill
“_______”
If( EX/MEM.RegWrite==1 and
EX/MEM.RegisterRd != 0 and
EX/MEM.RegisterRd == ID/EX.RegisterRs )
Then, forward from ___________(which stage?) to __________(which
operand of which stage?)

5. (10 points) For five-stage pipelined datapath, please explain each line of the following code and fill If ( EX/MEM. Regwrite--1 and EX/MEM. RegisterRd !-0 and EX/MEM . RegisterRd-ID/EX . RegisterRs ) (which stage?) to (which Then, forward from operand of which stage?)

Explanation / Answer

.“_______”
If( EX/MEM.RegWrite==1 and
EX/MEM.RegisterRd != 0 and
EX/MEM.RegisterRd == ID/EX.RegisterRs )

Then, forward from ___________(which stage?) to __________(which
operand of which stage?)

This is for detecting hazard which is detected if will write to a register EX/MEM.Regwrite
and EX/MEM.RegisterRd != 0 -if rdregister value is not zero which is possible if Ex And MEM is non zero.

EX/MEM.RegisterRd == ID/EX.RegisterRs which is one case of datahazard if all values are true then we can

This is forwarding condition of Ex hazard which are data hazards to write to register

Tools are required in order to handle hazards which does not allow program to run properly and stop next instruction from execution. For handling hazards one best way is to forwarding the execution.

.“_______”
If( EX/MEM.RegWrite==1 and
EX/MEM.RegisterRd != 0 and
EX/MEM.RegisterRd == ID/EX.RegisterRs )

Then, forward from ___________(which stage?) to __________(which
operand of which stage?)

This is for detecting hazard which is detected if will write to a register EX/MEM.Regwrite
and EX/MEM.RegisterRd != 0 -if rdregister value is not zero which is possible if Ex And MEM is non zero.

EX/MEM.RegisterRd == ID/EX.RegisterRs which is one case of datahazard if all values are true then we can

This is forwarding condition of Ex hazard which are data hazards to write to register

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