NEGate Unsigned : Set $t1 to negation of $t2, no overflow
# Negate 7 without overflow trapping. Inspect $t2: 0xFFFFFFF9. li $t0, 7 negu $t2, $t0 1 2 3
# Negate 7 without overflow trapping. Inspect $t2: 0xFFFFFFF9. li $t0, 7 negu $t2, $t0
