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Multi-Cycle Arch. Given the following code. Assume that x and y are arrays of words and the base address of x is stored in R1
Multi-Cycle Arch. Given the following code. Assume that x and y are arrays of words and the base address of x is stored in R1 and the base address ofy is stored in R2. Assume that each add operation takes 3 cycles to execute, each lw operation 4 cycles, each store sw takes 3 cycles, and each branch (bne) instruction takes 2 cycles to execute. The "T" represents Temp registers. All numbers are in decimal. add TO, zero, zero # TO =i = 0+0 = 0 add T1, R1, zero #T1 = address of x[i] + 0 add T2, R2, zero # T2 = address of y[i] + 0 add T3, zero, 101 Loop: lw T4, 0(T2) #Load T4 with M[T2+0] value add T5, T4, # C is a constant value sw T5, O(T1) # Store T5 to M[T1+0] add TO, TO, 1 add T1, T1,4 add T2, T2,4 142: bne TO, T3, -7 # Loops if branch is taken 144: add TO, TO, 100 What is the PC value for the SW instruction? 120 134 128 124 What is the PC value for the SW instruction? 120 O 134 128 0124 Calculate the branch target address? 0 130 133 116 What happens after to becomes equal to 13? TO has the value of TO (7) OTO increases by 100 T4 is loaded with new value from memory Branch is taken What is the total number of instructions that get fully executed? 101 1412 12 144 What is the total number of instructions that get fully executed? 101 1412 O 12 144 How many cycles it take to execute all instructions in the given code? 0 2136 0 576 36 O 24 What is the final value of TO? 100 200 201
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