Modify the single-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 (tl+t2) and stores it in register to.
lwx sto, (st1 st2)

a) give the functional form of the instruction based on the register names.

b) give the functional form based on the instruction fields.

c) draw the changes on the datapath diagram.

d) give the values of the control signals