X-Git-Url: https://git.stderr.nl/gitweb?p=matthijs%2Fmaster-project%2Fc%CE%BBash.git;a=blobdiff_plain;f=Flatten.hs;h=d25ef73aceabb2feec43007b1a469b267a72ce09;hp=30a9bbabe9754911b551c9dad1e5ccc41d1e2401;hb=HEAD;hpb=6e1beb07825c53ab0da16b815d58c24a1b4ea449

diff --git a/Flatten.hs b/Flatten.hs
index 30a9bba..d25ef73 100644
--- a/Flatten.hs
+++ b/Flatten.hs
@@ -54,11 +54,10 @@ markSignal use id = markSignals use [id]
 -- | Flatten a haskell function
 flattenFunction ::
   HsFunction                      -- ^ The function to flatten
-  -> CoreBind                     -- ^ The function value
+  -> (CoreBndr, CoreExpr)         -- ^ The function value
   -> FlatFunction                 -- ^ The resulting flat function
 
-flattenFunction _ (Rec _) = error "Recursive binders not supported"
-flattenFunction hsfunc bind@(NonRec var expr) =
+flattenFunction hsfunc (var, expr) =
   FlatFunction args res defs sigs
   where
     init_state        = ([], [], 0)
@@ -218,9 +217,12 @@ flattenExpr binds app@(App _ _) = do
         sig_id <- genSignalId SigInternal ty
         -- TODO: fromInteger is defined for more types than just SizedWord
         let len = sized_word_len ty
-        -- TODO: to_stdlogicvector doesn't work here, since SizedWord
-        -- translates to a different type...
-        addDef $ UncondDef (Right $ Literal ("to_stdlogicvector(to_unsigned(" ++ (show int) ++ ", " ++ (show len) ++ "))") Nothing) sig_id
+        -- Use a to_unsigned to translate the number (a natural) to an unsiged
+        -- (array of bits)
+        let lit_str = "to_unsigned(" ++ (show int) ++ ", " ++ (show len) ++ ")"
+        -- Set the signal to our literal unconditionally, but add the type so
+        -- the literal will be typecast to the proper type.
+        addDef $ UncondDef (Right $ Literal lit_str (Just ty)) sig_id
         return ([], Single sig_id)
       else
         flattenApplicationExpr binds (CoreUtils.exprType app) f args
@@ -265,11 +267,12 @@ flattenExpr binds expr@(Case scrut b _ alts) = do
   -- TODO: Special casing for higher order functions
   -- Flatten the scrutinee
   (_, res) <- flattenExpr binds scrut
+  -- Put the scrutinee in the BindMap
+  let binds' = (b, Left res) : binds
   case alts of
-    -- TODO include b in the binds list
-    [alt] -> flattenSingleAltCaseExpr binds res b alt
+    [alt] -> flattenSingleAltCaseExpr binds' res b alt
     -- Reverse the alternatives, so the __DEFAULT alternative ends up last
-    otherwise -> flattenMultipleAltCaseExpr binds res b (reverse alts)
+    otherwise -> flattenMultipleAltCaseExpr binds' res b (reverse alts)
   where
     flattenSingleAltCaseExpr ::
       BindMap