foreign import "stg_intToInt64" unsafe intToInt64# :: Int# -> Int64#
foreign import "stg_int64ToInt" unsafe int64ToInt# :: Int64# -> Int#
foreign import "stg_wordToWord64" unsafe wordToWord64# :: Word# -> Word64#
-foreign import "stg_word64ToWord" unsafe word64ToWord# :: Word64# -> Word#
foreign import "stg_int64ToWord64" unsafe int64ToWord64# :: Int64# -> Word64#
foreign import "stg_word64ToInt64" unsafe word64ToInt64# :: Word64# -> Int64#
foreign import "stg_and64" unsafe and64# :: Word64# -> Word64# -> Word64#