+-- | A consise representation of a (set of) ports on a builtin function
+type PortMap = HsValueMap (String, AST.TypeMark)
+-- | A consise representation of a builtin function
+data BuiltIn = BuiltIn String [PortMap] PortMap
+
+-- | Translate a concise representation of a builtin function to something
+-- that can be put into FuncMap directly.
+addBuiltIn :: BuiltIn -> VHDLState ()
+addBuiltIn (BuiltIn name args res) = do
+ addFunc hsfunc
+ where
+ hsfunc = HsFunction name (map useAsPort args) (useAsPort res)
+
+builtin_funcs =
+ [
+ BuiltIn "hwxor" [(Single ("a", VHDL.bit_ty)), (Single ("b", VHDL.bit_ty))] (Single ("o", VHDL.bit_ty))
+ ]
+