Data Forwarding

A data forwarding (or operand forwarding) mechanism is one of the method to reduce the impact of raw hazards on the pipeline instruction execution. It relies on the existence of additional data paths that allow the results of the instruction execution to be used earlier than after the execution is fully completed. To see how it works, we will use again the example program used for R-A-W hazard investigation.

Before you execute the program in WinMIPS64 simulator, enable the data forwarding mechanism (in Settins  enable the option “CPU forwarding”)