Miscellany

1) 
		sll		$a2, $a2, 2
		sll		$a3, $a3, 2
		add		$v0, $zero, $zero
		add		$t0, $zero, $zero
outer:	lw		$t4, 0($t4)
		add		$t1, $zero, $zero
inner:	add		$t3, $a1, $t1
		lw		$t3, 0($t3)
		bne		$t3, $t4, skip
		addi	$v0, $v0, 1
skip:	addi	$t1, $t1, 4
		bne		$t1, $a3, inner
		addi	$t0, $t0, 4
		bne		$t0, $a2, outer