X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=VHDL.hs;h=72b0a925ec8554753109ff04946eb667a6581c04;hb=dfdf88c20bacf8f8e7863cf7a41c86c869735f6f;hp=15eb4c59330327e7f82fac05e5aa4391c50b1fbe;hpb=528eea4600faddffb577c6582a46c9732ab2679d;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git

diff --git a/VHDL.hs b/VHDL.hs
index 15eb4c5..72b0a92 100644
--- a/VHDL.hs
+++ b/VHDL.hs
@@ -269,6 +269,12 @@ mkConcSm ::
 -- the type works out.
 mkConcSm (bndr, Cast expr ty) = mkConcSm (bndr, expr)
 
+-- For simple a = b assignments, just generate an unconditional signal
+-- assignment. This should only happen for dataconstructors without arguments.
+-- TODO: Integrate this with the below code for application (essentially this
+-- is an application without arguments)
+mkConcSm (bndr, Var v) = return $ [mkUncondAssign (Left bndr) (varToVHDLExpr v)]
+
 mkConcSm (bndr, app@(CoreSyn.App _ _))= do
   let (CoreSyn.Var f, args) = CoreSyn.collectArgs app
   let valargs' = filter isValArg args
@@ -294,17 +300,32 @@ mkConcSm (bndr, app@(CoreSyn.App _ _))= do
       -- It's a global value imported from elsewhere. These can be builtin
       -- functions.
       funSignatures <- getA vsNameTable
+      signatures <- getA vsSignatures
       case (Map.lookup (bndrToString f) funSignatures) of
         Just (arg_count, builder) ->
           if length valargs == arg_count then
-            let
-              sigs = map (varToVHDLExpr.varBndr) valargs
-              func = builder sigs
-              src_wform = AST.Wform [AST.WformElem func Nothing]
-              dst_name = AST.NSimple (mkVHDLExtId (bndrToString bndr))
-              assign = dst_name AST.:<==: (AST.ConWforms [] src_wform Nothing)
-            in
-              return [AST.CSSASm assign]
+            case builder of
+              Left funBuilder ->
+                let
+                  sigs = map (varToVHDLExpr.varBndr) valargs
+                  func = funBuilder sigs
+                  src_wform = AST.Wform [AST.WformElem func Nothing]
+                  dst_name = AST.NSimple (mkVHDLExtId (bndrToString bndr))
+                  assign = dst_name AST.:<==: (AST.ConWforms [] src_wform Nothing)
+                in
+                  return [AST.CSSASm assign]
+              Right genBuilder ->
+                let
+                  ty = Var.varType bndr
+                  len = tfvec_len ty 
+                  sigs = map varBndr valargs
+                  signature = Maybe.fromMaybe
+                    (error $ "Using function '" ++ (bndrToString (head sigs)) ++ "' without signature? This should not happen!") 
+                    (Map.lookup (head sigs) signatures)
+                  arg_names = map (mkVHDLExtId . bndrToString) (tail sigs)
+                  dst_name = mkVHDLExtId (bndrToString bndr)
+                  genSm = genBuilder len signature (arg_names ++ [dst_name])  
+                in return [AST.CSGSm genSm]
           else
             error $ "VHDL.mkConcSm Incorrect number of arguments to builtin function: " ++ pprString f ++ " Args: " ++ pprString valargs
         Nothing -> error $ "Using function from another module that is not a known builtin: " ++ pprString f