$1.$ Do Exercise $2$ in Chapter $5($A Closer Look at Instruction Set Architectures$)$ of Null and Lobur $2.$ Do Exercise $12$ in Chapter $5($A Closer Look at Instruction Set Architectures$)$ of Null and Lobur $3.$ Do Exercise $14$ in Chapter $5($A Closer Look at Instruction Set Architectures$)$of Null and Lobur $4.$ Do Exercise $22$ in Chapter $5($A Closer Look at Instruction Set Architectures$)$ of Null and Lobur $5.$ Do Exercise $28$ in Chapter $5($A Closer Look at Instruction Set Architectures$)$of Null and Lobur