Addition: set t1 to (t2 plus t3)
.text li t0, 13 li t1, 5 # t0=13, t1=5; add writes 18 to t2. add t2, t0, t1 1 2 3 4 5
.text li t0, 13 li t1, 5 # t0=13, t1=5; add writes 18 to t2. add t2, t0, t1
