Question 2: Compute the costs for the following pieces of codes:

i) LD R0, c

LD R1, i

MUL R1, *R1, 8

ST a(R1), c

ii) LD R0, c

LD R1, 0(R0)

ST x, R1

iii) LD R0, x

LD R1, y

SUB R0, R1, R2

BLTZ *R3, 5

iv) LD R0, x

LD R1, y

SUB R0, *R0, R1

BLTZ *R3, R0