-- | isnull (function null in original Haskell source) function identifier
-isnullId :: String
-isnullId = "isnull"
+nullId :: String
+nullId = "null"
-- | replace function identifier
copyId :: String
copyId = "copy"
+-- | copyn function identifier
+copynId :: String
+copynId = "copyn"
+
-- | map function identifier
mapId :: String
mapId = "map"
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