addi Sao, $O, -4

addi $s2, $0, -1

addi $al, $0, -5 

sub $s0, $a0, $al

sw $s0, -8($0)

lw $s1, -8($0)

bne $50, $s1, FAIL

add $s2, $0, $0

j END

END: