+resizeWordId :: String
+resizeWordId = "resizeWord"
+
+resizeIntId :: String
+resizeIntId = "resizeInt"
+
+smallIntegerId :: String
+smallIntegerId = "smallInteger"
+
+sizedIntId :: String
+sizedIntId = "SizedInt"
+
+tfvecId :: String
+tfvecId = "TFVec"
+
+blockRAMId :: String
+blockRAMId = "blockRAM"
+
+-- | output file identifier (from std.textio)
+showIdString :: String
+showIdString = "show"
+
+showId :: AST.VHDLId
+showId = AST.unsafeVHDLExtId showIdString
+
+-- | write function identifier (from std.textio)
+writeId :: AST.VHDLId
+writeId = AST.unsafeVHDLBasicId "write"
+
+-- | output file identifier (from std.textio)
+outputId :: AST.VHDLId
+outputId = AST.unsafeVHDLBasicId "output"
+