Assuming you have the following $5$ instructions executed on a five$-$stage pipelined datapath:

Id $R$2,100($$R$2)$

and $R$12,$ $R$2,$ $R$5$

Id $R$13,6($$R$12)$

Id $R$13,100($$R$13)$

and $R$13,$ $R$12,$ $R$10$

Use $5-$stage pipeline with A and B in a chart.

a$.$ Without forwarding unit, insert NOPs to ensure correct execution.

b$.$ With data forwarding unit and hazard detection unit. write with NOPs to eliminate hazards