val to_int : int32 -> int
val add : int32 -> int32 -> int32
val shift_left : int32 -> int -> int32
val shift_right_logical : int32 -> int -> int32
val shift_right : int32 -> int -> int32
val logand : int32 -> int32 -> int32
val logxor : int32 -> int32 -> int32
val logor : int32 -> int32 -> int32
val of_int : int -> int32
val mul : int32 -> int32 -> int32