4. (35 points) Enhance the datapath architecture and the control unit for the following single cycle MIPS architecture to support the following instructions: a) Jump (jump is a J type instruction which has 6-bit for opcode and 26-bit for the jump address). Load upper halfword (load the most significant 16 bits of a word). b) Show the architecture modification for part a and b above using the following diagram. ALl Ati A MnRd ALBc Reed egstr 1 Read dta1 0 1Vite 32 ALU