zipId :: String
zipId = "zip"
+-- | unzip function identifier
+unzipId :: String
+unzipId = "unzip"
+
-- | hwxor function identifier
hwxorId :: String
hwxorId = "hwxor"
hwandId :: String
hwandId = "hwand"
+lengthTId :: String
+lengthTId = "lengthT"
------------------
-- VHDL type marks