Compute the costs for the following pieces of codes: i) LD RO, C LD R1, i MUL R1, R1, 8 ST a (R1), C LD R0, C LD R1, 0 (RO) ii) iii) iv) ST X, R1 LD RO, X LD R1, y SUB RO, R1, R2 BLTZ *R3, 5 LD RO, X LD R1, y SUB RO, BLTZ R3, RO RO, R1