X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;ds=sidebyside;f=Translator.hs;h=b4301a3f1a0b6c3451c0636025bce2a8a947900d;hb=185b1f477826325e1076ec552a432335867e7b03;hp=babd622fda8df41c8c962ccd6737d48eecbb6c49;hpb=ad6bf1a1380ac5cf48d58a7b7969fd45b7b6a49d;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git

diff --git a/Translator.hs b/Translator.hs
index babd622..b4301a3 100644
--- a/Translator.hs
+++ b/Translator.hs
@@ -10,6 +10,7 @@ import qualified Maybe
 import qualified Module
 import qualified Control.Monad.State as State
 import Name
+import qualified Data.Map as Map
 import Data.Generics
 import NameEnv ( lookupNameEnv )
 import HscTypes ( cm_binds, cm_types )
@@ -53,7 +54,7 @@ main =
           let binds = Maybe.mapMaybe (findBind (cm_binds core)) ["sfull_adder"]
           liftIO $ putStr $ prettyShow binds
           -- Turn bind into VHDL
-          let (vhdl, sess) = State.runState (mkVHDL binds) (VHDLSession core 0 [])
+          let (vhdl, sess) = State.runState (mkVHDL binds) (VHDLSession core 0 Map.empty)
           liftIO $ putStr $ render $ ForSyDe.Backend.Ppr.ppr vhdl
           liftIO $ ForSyDe.Backend.VHDL.FileIO.writeDesignFile vhdl "../vhdl/vhdl/output.vhdl"
           liftIO $ putStr $ "\n\nFinal session:\n" ++ prettyShow sess ++ "\n\n"
@@ -62,9 +63,9 @@ main =
     -- Turns the given bind into VHDL
     mkVHDL binds = do
       -- Add the builtin functions
-      --mapM (uncurry addFunc) builtin_funcs
+      mapM addBuiltIn builtin_funcs
       -- Create entities and architectures for them
-      mapM flattenBind binds
+      mapM processBind binds
       return $ AST.DesignFile 
         []
         []
@@ -79,23 +80,33 @@ findBind binds lookfor =
     NonRec var _ -> lookfor == (occNameString $ nameOccName $ getName var)
   ) binds
 
--- | Flattens the given bind and adds it to the session. Then (recursively)
---   finds any functions it uses and does the same with them.
-flattenBind ::
-  CoreBind                        -- The binder to flatten
+-- | Processes the given bind as a top level bind.
+processBind ::
+  CoreBind                        -- The bind to process
   -> VHDLState ()
 
-flattenBind (Rec _) = error "Recursive binders not supported"
-
-flattenBind bind@(NonRec var expr) = do
+processBind  (Rec _) = error "Recursive binders not supported"
+processBind bind@(NonRec var expr) = do
   -- Create the function signature
   let ty = CoreUtils.exprType expr
   let hsfunc = mkHsFunction var ty
-  --hwfunc <- mkHWFunction bind hsfunc
-  -- Add it to the session
-  --addFunc hsfunc hwfunc 
+  flattenBind hsfunc bind
+
+-- | Flattens the given bind into the given signature and adds it to the
+--   session. Then (recursively) finds any functions it uses and does the same
+--   with them.
+flattenBind ::
+  HsFunction                         -- The signature to flatten into
+  -> CoreBind                        -- The bind to flatten
+  -> VHDLState ()
+
+flattenBind _ (Rec _) = error "Recursive binders not supported"
+
+flattenBind hsfunc bind@(NonRec var expr) = do
+  -- Flatten the function
   let flatfunc = flattenFunction hsfunc bind
-  addFunc hsfunc flatfunc
+  addFunc hsfunc
+  setFlatFunc hsfunc flatfunc
   let used_hsfuncs = map appFunc (apps flatfunc)
   State.mapM resolvFunc used_hsfuncs
   return ()
@@ -121,7 +132,7 @@ resolvFunc hsfunc = do
       let bind = findBind (cm_binds core) name
       case bind of
         Nothing -> error $ "Couldn't find function " ++ name ++ " in current module."
-        Just b  -> flattenBind b
+        Just b  -> flattenBind hsfunc b
   where
     name = hsFuncName hsfunc
 
@@ -168,4 +179,25 @@ splitTupleType ty =
         Nothing
     Nothing -> Nothing
 
+-- | 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)),
+    BuiltIn "hwand" [(Single ("a", VHDL.bit_ty)), (Single ("b", VHDL.bit_ty))] (Single ("o", VHDL.bit_ty)),
+    BuiltIn "hwor" [(Single ("a", VHDL.bit_ty)), (Single ("b", VHDL.bit_ty))] (Single ("o", VHDL.bit_ty)),
+    BuiltIn "hwnot" [(Single ("a", VHDL.bit_ty))] (Single ("o", VHDL.bit_ty))
+  ]
+
 -- vim: set ts=8 sw=2 sts=2 expandtab: