Fix zipWith template to work with partially applied functions, add support for boolea...

[matthijs/master-project/cλash.git] / cλash / CLasH / VHDL / Generate.hs

diff --git a/cλash/CLasH/VHDL/Generate.hs b/cλash/CLasH/VHDL/Generate.hs
index 1d8194d9455e386834362e610f15db322c0e73c7..a6f3590a39fca3c5dcd53a2927984f59dabbeac2 100644 (file)
--- a/cλash/CLasH/VHDL/Generate.hs
+++ b/cλash/CLasH/VHDL/Generate.hs
@@ -134,8 +134,14 @@ getArchitecture fname = makeCached fname tsArchitectures $ do
   (state_proc, resbndr) <- case (Maybe.catMaybes in_state_maybes, Maybe.catMaybes out_state_maybes, init_state) of
         ([in_state], [out_state], Nothing) -> do 
           nonEmpty <- hasNonEmptyType in_state
-          if nonEmpty then error ("No initial state defined for: " ++ show fname) else return ([],[])
-        ([in_state], [out_state], Just resetval) -> mkStateProcSm (in_state, out_state,resetval)
+          if nonEmpty 
+            then error ("No initial state defined for: " ++ show fname) 
+            else return ([],[])
+        ([in_state], [out_state], Just resetval) -> do
+          nonEmpty <- hasNonEmptyType in_state
+          if nonEmpty 
+            then mkStateProcSm (in_state, out_state, resetval)
+            else error ("Initial state defined for function with only substate: " ++ show fname)
         ([], [], Just _) -> error $ "Initial state defined for state-less function: " ++ show fname
         ([], [], Nothing) -> return ([],[])
         (ins, outs, res) -> error $ "Weird use of state in " ++ show fname ++ ". In: " ++ show ins ++ " Out: " ++ show outs
@@ -172,9 +178,13 @@ mkStateProcSm ::
 mkStateProcSm (old, new, res) = do
   let error_msg = "\nVHDL.mkSigDec: Can not make signal declaration for type: \n" ++ pprString res 
   type_mark_old_maybe <- MonadState.lift tsType $ vhdlTy error_msg (Var.varType old)
-  let type_mark_old = Maybe.fromJust type_mark_old_maybe
+  let type_mark_old = Maybe.fromMaybe 
+                        (error $ "\nGenerate.mkStateProcSm: empty type for state? Type: " ++ pprString (Var.varType old))
+                        type_mark_old_maybe
   type_mark_res_maybe <- MonadState.lift tsType $ vhdlTy error_msg (Var.varType res)
-  let type_mark_res' = Maybe.fromJust type_mark_res_maybe
+  let type_mark_res' = Maybe.fromMaybe 
+                        (error $ "\nGenerate.mkStateProcSm: empty type for initial state? Type: " ++ pprString (Var.varType res))
+                        type_mark_res_maybe
   let type_mark_res = if type_mark_old == type_mark_res' then
                         type_mark_res'
                       else 
@@ -574,9 +584,7 @@ genMap (Left res) f [Left mapped_f, Left (CoreSyn.Var arg)] = do {
 genMap' (Right name) _ _ = error $ "\nGenerate.genMap': Cannot generate map function call assigned to a VHDLName: " ++ show name
     
 genZipWith :: BuiltinBuilder
-genZipWith = genVarArgs genZipWith'
-genZipWith' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
-genZipWith' (Left res) f args@[zipped_f, arg1, arg2] = do {
+genZipWith (Left res) f args@[Left zipped_f, Left (CoreSyn.Var arg1), Left (CoreSyn.Var arg2)] = do {
   -- Setup the generate scheme
   ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) res
           -- TODO: Use something better than varToString
@@ -588,10 +596,12 @@ genZipWith' (Left res) f args@[zipped_f, arg1, arg2] = do {
           -- Create the content of the generate statement: Applying the zipped_f to
           -- each of the elements in arg1 and arg2, storing to each element in res
         ; resname     = mkIndexedName (varToVHDLName res) n_expr
+        ; (CoreSyn.Var real_f, already_mapped_args) = CoreSyn.collectArgs zipped_f
+        ; valargs     = get_val_args (Var.varType real_f) already_mapped_args
         ; argexpr1    = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg1) n_expr
         ; argexpr2    = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg2) n_expr
         } ;
-  ; (app_concsms, used) <- genApplication (Right resname) zipped_f [Right argexpr1, Right argexpr2]
+  ; (app_concsms, used) <- genApplication (Right resname) real_f (map Left valargs ++ [Right argexpr1, Right argexpr2])
     -- Return the generate functions
   ; return ([AST.CSGSm $ AST.GenerateSm label genScheme [] app_concsms], used)
   }
@@ -1593,6 +1603,7 @@ globalNameTable = Map.fromList
   , (gteqId           , (2, genOperator2 (AST.:>=:) ) )
   , (boolOrId         , (2, genOperator2 AST.Or     ) )
   , (boolAndId        , (2, genOperator2 AST.And    ) )
+  , (boolNot          , (1, genOperator1 AST.Not    ) )
   , (plusId           , (2, genOperator2 (AST.:+:)  ) )
   , (timesId          , (2, genTimes                ) )
   , (negateId         , (1, genNegation             ) )