( 1
/spur incr
	ldarg 0
	int 1
	add
	stvar 0
	return
)
( 1
/spur plus
	ldarg 1
	ldarg 0
	add
	stvar 0
	ldvar 0
	call incr 1 1
	stvar 0
	return
)
( 1
/spur main
	int 100
	int 20
	call plus 2 1
	stvar 0
	return
)