Set Greater Than Zero : if t2 > 0 then set t1 to 1 else 0
.text li t0, 1 # t0=1; sgtz writes 1 to t2. sgtz t2, t0 1 2 3 4
.text li t0, 1 # t0=1; sgtz writes 1 to t2. sgtz t2, t0
