MIPS Datapath forwarding design

Assume that the instructions cannot be reordered. Draw in all necessary forwarding circuitry and wires to the following figure to avoid the hazard(s) created by the following code. Only add circuitry necessary to avoid the hazard(s) in this code.

lw $s1, 0($s0)

add $t2, $t2, $s3

sub $t3, $s1, $t4

Instruction IDEX Wi IFO 1stuson Data Dat FID ReasterRs FID RegsterRt FIDRegiteRd Forwarding ] MEMB RepsteRI