# $s1 = &A1[0]
# $s2 = &A2[0]
# $s3 = sum even numbers

add $t0, $zero, $zero	# A1_counter
add $t1, $zero, $zero	# A2_counter
add $s3, $zero, $zero	# sum = 0
addi $t4, 7

loop_start:
	sll $t2, $t0, 2		# $t2 = A1_counter * 4
	sll $t3, $t1, 2		# $t3 = A2_counter * 4

	add $t2, $t2, $s1	# $t2 = &A1[0] + A1_counter * 4 i.e &A1[i]
	add $t3, $t3, $s2	# $t2 = &A2[0] + A2_counter * 4 i.e &A2[i[

	# condition check
	lw $s0, 0($t2)		# $s0 = A1[i]
	beq $s0, $zero, exit

	# procedure call
	mov $a0, $s0
	jal is_even

	if_number_is_even_start:
		# condition
		bne $v0, 1, if_number_is_even_end:

		# true evaluation
		add $s3, $s3, $s0	# sum += A1[i]
	if_number_is_even_end:

	if_number_ends_with_ones_start:
		# condition
		and $t5, $s0, $t4
		bne $t5, $t4		# jump if (A[i] & 7) != 7

		# true evaluation
		sw $s0, 0($t3)		# A2[j] = A1[i]
		addi $t1, $t1, 1	# ++j
	if_number_ends_with_ones_end:

	addi $t0, $t0, 1	# ++i
	j loop_start

loop_end:



is_even:
	addi $t7, $zero, 2
	div $a0, $t0
	mfhi $t0

	if_remainder_is_zero:
		#condition
		bne $t7, $zero, else

		# return 1
		addi $v0, $zero, 1
		jr $ra
	else:
		# return 0
		addi $v0, $zero, $zero
		jr $ra


exit: