# syscall.s  (unuse $fp)

	.text
	.align	2

_print_int:
	subu	$sp,$sp,24
	sw	$ra,20($sp)

	li	$v0, 1
	syscall

	lw	$ra,20($sp)
	addu	$sp,$sp,24
	j	$ra

_print_string:
	subu	$sp,$sp,24
	sw	$ra,20($sp)

	li $v0, 4
	syscall

	lw	$ra,20($sp)
	addu	$sp,$sp,24
	j	$ra

_read_int:
	subu	$sp,$sp,24
	sw	$ra,20($sp)

	li $v0, 5
	syscall

	lw	$ra,20($sp)
	addu	$sp,$sp,24
	j	$ra

_read_string:
	subu	$sp,$sp,24
	sw	$ra,20($sp)

	li $v0, 8
	syscall

	lw	$ra,20($sp)
	addu	$sp,$sp,24
	j	$ra

_exit:
	subu	$sp,$sp,24
	sw	$ra,20($sp)

	li $v0, 10
	syscall

	lw	$ra,20($sp)
	addu	$sp,$sp,24
	j	$ra