(5) A designer is considering adding a new instruction to an existing instruction set. This in- struction can be implemented using a sequence of three existing instructions. The designer has already determined that the instruction fits the current encoding scheme and that adding the nstruction will not cause any existing instructions to operate any slower. Also, it will require ewer cycles to implement than the three instructions it replaces, so adding the instruction should produce a performance increase. (a) What other factors should the designer consider before deciding to add the new instruction? (b) What condition will likely ensure that these factors will be satisfied