Set Less Than Zero : if t2 < 0 then set t1 to 1 else 0
.text li t0, -1 # t0=-1; sltz writes 1 to t2. sltz t2, t0 1 2 3 4
.text li t0, -1 # t0=-1; sltz writes 1 to t2. sltz t2, t0
