Mark pipeline stages that do not perform useful work. how often while the pipeline is full do we have a cycle in which all five pipeline stages are doing useful work? (begin with the cycle during whic

Mark pipeline stages that do not perform useful work. how often while the pipeline is full do we have a cycle in which all five pipeline stages are doing useful work? (begin with the cycle during which the subi is in the if stage. end with the cycle during which the cbnz is in the if stage.)