main:	locals 0 0
	call -1 a
	ret
a:	locals 0 1
	push_int 127
	store_var 0 1	# x = 127
	call -1 b
	put_str "x = "
	push_var 0 1
	put
	put_nl
	ret
b:	locals 0 0
	call 0 c
	ret
c:	locals 0 0
	push_var 1 1
	push_int 2
	mult
	store_var 1 1	# x *= 2
	ret