Modify the multi-cycle datapath by implementing the load word indexed instruction (lwx). Below is the syntax and the encoding. The instruction below reads the word from memory address (t1+t2) and stores it in register t0.

Questions:

a) Show how many cycles are used for the instruction and whats done in each cycle.

b) Draw the changes on the datapath diagram.

c) Draw the modifications to the control state machine.

lwx St0, (St1 St2) unique tl t2 t0 opcode rs rt rd shamt funct