(20 points) The basic single-cycle MIPS implementation in Figure 4.24 can only implement a subset of instructions. If we want to implement the "add immediate (addi)" instruction as well 1. addi Rt Rs const a. [10 points] Which existing components of the datapath are used for this instruction? What new functional components (if any) and/or control signals do we need for this instruction? b. [10 points] Fill out control signal values in Figure 4.24 to support this instruction RegDst ALUSrc MemtoReg RegWrite MemRead MemWrite Branch Jump ALUOp