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MIPS chooses to simplify the structure of its instructions. The way we implement complex instructions through the use of MIPS instructions is to decompose such complex instructions into multiple simpler MIPS ones. Show how MIPS can implement the instruction swap $rs, $rt, which swaps the contents of registers $rs and $rt. Consider the case in which there is an available register that may be destroyed as well as the care in which no such register exists. If the implementation of this instruction in hardware will increase the clock period of a single-instruction implementation by 10%, what percentage of swap operations in the instruction mix would recommend implementing it in hardware?