e x e r2 :
lw $t0 , 0 ( $a0 )
lw $t1 , 4 ( $a0 )
lw $t2 , 0 ( $a1 )
lw $t3 , 4 ( $a1 )
s l t $t4 , $t0 , $ t2
s l t $t5 , $t1 , $ t3
and $t4 , $t4 , $ t5
beq $t4 , $0 , foo
sub $t3 , $t3 , $ t2
j bar
foo :
sub $t3 , $t2 , $ t3
bar :
sw $t3 , 0 ( $a0 )
j r $ ra