X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=c%CE%BBash%2FCLasH%2FVHDL%2FTestbench.hs;h=fa2e9dc7bde21544cc4236db4a0a319309c0f06e;hb=75978cf28a619d14ae27ea2bb4a53246b6a0bcd8;hp=bc23262c09b05c31efacd6f4a41f41235dadedea;hpb=743f2dcf9a7a37c71fc06ce552f605fac3120e56;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git

diff --git "a/c\316\273ash/CLasH/VHDL/Testbench.hs" "b/c\316\273ash/CLasH/VHDL/Testbench.hs"
index bc23262..fa2e9dc 100644
--- "a/c\316\273ash/CLasH/VHDL/Testbench.hs"
+++ "b/c\316\273ash/CLasH/VHDL/Testbench.hs"
@@ -7,14 +7,13 @@ module CLasH.VHDL.Testbench where
 import qualified Control.Monad as Monad
 import qualified Maybe
 import qualified Data.Map as Map
-import Data.Accessor
-import qualified Data.Accessor.MonadState as MonadState
+import qualified Data.Accessor.Monad.Trans.State as MonadState
 
--- ForSyDe
+-- VHDL Imports
 import qualified Language.VHDL.AST as AST
 
 -- GHC API
-import CoreSyn
+import qualified CoreSyn
 import qualified HscTypes
 import qualified Var
 import qualified TysWiredIn
@@ -35,16 +34,16 @@ createTestbench ::
   -> [HscTypes.CoreModule] -- ^ Compiled modules
   -> CoreSyn.CoreExpr -- ^ Input stimuli
   -> CoreSyn.CoreBndr -- ^ Top Entity
-  -> TranslatorSession CoreBndr -- ^ The id of the generated archictecture
+  -> TranslatorSession CoreSyn.CoreBndr -- ^ The id of the generated archictecture
 createTestbench mCycles cores stimuli top = do
   stimuli' <- reduceCoreListToHsList cores stimuli
   -- Create a binder for the testbench. We use the unit type (), since the
   -- testbench has no outputs and no inputs.
   bndr <- mkInternalVar "testbench" TysWiredIn.unitTy
   let entity = createTestbenchEntity bndr
-  modA tsEntities (Map.insert bndr entity)
+  MonadState.modify tsEntities (Map.insert bndr entity)
   arch <- createTestbenchArch mCycles stimuli' top entity
-  modA tsArchitectures (Map.insert bndr arch)
+  MonadState.modify tsArchitectures (Map.insert bndr arch)
   return bndr
 
 createTestbenchEntity :: 
@@ -87,7 +86,7 @@ createTestbenchArch mCycles stimuli top testent= do
   (stimuliAssigns, stimuliDecs, cycles, used) <- createStimuliAssigns mCycles stimuli (head iIds)
   let finalAssigns = (AST.CSSASm (AST.NSimple resetId AST.:<==:
                       AST.ConWforms []
-                                    (AST.Wform [AST.WformElem (AST.PrimLit "'1'") (Just $ AST.PrimLit "3 ns")])
+                                    (AST.Wform [AST.WformElem (AST.PrimLit "'0'") (Just $ AST.PrimLit "0 ns"), AST.WformElem (AST.PrimLit "'1'") (Just $ AST.PrimLit "3 ns")])
                                     Nothing)) : stimuliAssigns
   let clkProc     = createClkProc
   let arch = AST.ArchBody
@@ -118,12 +117,14 @@ createStimuliAssigns mCycles stimuli signal = do
   outps <- mapM (\x -> MonadState.lift tsType (varToVHDLExpr x)) resvars
   let wformelems = zipWith genWformElem [0,10..] outps
   let inassign = AST.CSSASm $ AST.NSimple signal AST.:<==: AST.ConWforms [] (AST.Wform wformelems) Nothing
-  return (stimuli_sms ++ [inassign], sig_decs, inputlen, concat useds)
+  case (concat stimuli_sms) of
+    []        -> return ([inassign], [], inputlen, concat useds)
+    stims     -> return (stims ++ [inassign], sig_decs, inputlen, concat useds)
 
 createStimulans ::
   CoreSyn.CoreExpr -- ^ The stimulans
   -> Int -- ^ The cycle for this stimulans
-  -> TranslatorSession ( AST.ConcSm
+  -> TranslatorSession ( [AST.ConcSm]
                        , Var.Var 
                        , [CoreSyn.CoreBndr]) -- ^ (The statement, the variable it assigns to (assumed to be available!), Any entities used by this stimulans)
 
@@ -135,10 +136,12 @@ createStimulans expr cycl = do
   let ([], binds, res) = splitNormalized expr
   (stimulansbindss, useds) <- unzipM $ Monad.mapM mkConcSm binds
   sig_dec_maybes <- mapM (mkSigDec . fst) (filter ((/=res).fst) binds)
-  let sig_decs = map (AST.BDISD) (Maybe.catMaybes $ sig_dec_maybes)
+  let sig_decs = map (AST.BDISD) (Maybe.catMaybes sig_dec_maybes)
   let block_label = mkVHDLExtId ("testcycle_" ++ (show cycl))
-  let block = AST.BlockSm block_label [] (AST.PMapAspect []) sig_decs (concat stimulansbindss)  
-  return (AST.CSBSm block, res, concat useds)
+  let block = AST.BlockSm block_label [] (AST.PMapAspect []) sig_decs (concat stimulansbindss)
+  case (sig_decs,(concat stimulansbindss)) of
+    ([],[])   ->  return ([], res, concat useds)
+    otherwise ->  return ([AST.CSBSm block], res, concat useds)
  
 -- | generates a clock process with a period of 10ns
 createClkProc :: AST.ProcSm
@@ -157,7 +160,7 @@ createOutputProc outs =
          [clockId]
          [AST.IfSm clkPred (writeOuts outs) [] Nothing]
  where clkPred = AST.PrimName (AST.NAttribute $ AST.AttribName (AST.NSimple clockId) 
-                                                   (AST.NSimple $ eventId)
+                                                   (AST.NSimple eventId)
                                                    Nothing          ) `AST.And` 
                  (AST.PrimName (AST.NSimple clockId) AST.:=: AST.PrimLit "'1'")
        writeOuts :: [AST.VHDLId] -> [AST.SeqSm]