1) For each instruction below, make a copy of the simple (single-cycle) MIPS processor (Figure 4.17 in the textbook) and highlight it when the instruction is executed: add, lw, sw, j

2) Extend the MIPS processor (Figure 4.17) by adding a new instruction, lbu (load byte unsigned). Clearly show modifications to the datapath and identify new control signals and their values. Highlight the extended processor when this instruction is executed.

3) Draw a MIPS processor that implements only three instructions: add, sub, beq.