Problem $3$

A$.$ For the following piece of code, identify all dependencies and name them,

please be clear in your answer:

LD R$1,45($R$2)$

ADD R$7,$ R$1,$ R$5$

SUB R$8,$ R$1,$ R$6$

OR R$9,$ R$5,$ R$1$

BNEZ R$7,$ target

ADD R$10,$ R$8,$ R$5$

XOR R$2,$ R$3,$ R$4$

B$.$ Use delayed branch approach to avoid or minimize stall cycles in the

following loop:

LOOP:

SUB R$3,$ R$3,$ R$1$

SW R$3,0($R$5)$

SW R$4,0($R$6)$

BNEZ R$3$ LOOP