$2\mathrm{.}1$ Identify all of the data hazards and their resolution with NOPs assuming no forwarding or

hazard detection hardware is being used

Hazards identified:

or x$13,$ x$12,$ x$11$

ld x$10,0($x$13)$ EX to $1$st RAW Hazard

ld x$11,8($x$13)$ EX to $2$nd RAW Hazard

add x$12,$ x$10,$ x$11$ MEM to $1$st RAW $[$load$-$use$-$data$]$ & MEM to $2$nd Hazards

subi x$13,$ x$12,16$ Ex to $1$st RAW Hazard

NOPS introduced to resolve Hazards:

or x$13,$ x$12,$ x$11$

NOPS

NOPS

ld x$10,0($x$13)$ EX to $1$st RAW Hazard resolution with $2$ NOPs

ld x$11,8($x$13)$ EX to $2$nd RAW Hazard resolved as well from above $2$ NOPs

NOPS

NOPS

add x$12,$ x$10,$ x$11$ MEM to $1$st RAW $[$load$-$use$-$data$]$ & MEM to $2$nd Hazards

resolved with $2$ NOPs

NOPS

NOPS

subi x$13,$ x$12,16$ Ex to $1$st only RAW Hazard resolved with $2$ NOP