4 Complex pseudoinstructions The pseudoinstructions in Problems 7.2 and 7.3 semble regular MiniMIPS assembly instructions. In this problem, we propose a number of pseu functions that do not could not be implemented as such within the format resemble ordinary instructions and nstraints of MiniMIPS instructions. The following pseudoinstructions perform "incr word," "fetch and add," and "fetch and add immediate" functions. In each case, supply an equivalent MiniMIPS sequence of instructions with the desired effect. rement memory