X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=c%CE%BBash%2FCLasH%2FVHDL%2FGenerate.hs;h=58810072de2dbcb322f9dca4073b9c8614b3a4d5;hb=e5dd5cf96b276f6a3e480a6b1d2214f3701fa5dc;hp=48b56169241214dccd82cf574bddf28929fcc86a;hpb=cf53d927025a818188af17622903df33ade92ff8;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git diff --git "a/c\316\273ash/CLasH/VHDL/Generate.hs" "b/c\316\273ash/CLasH/VHDL/Generate.hs" index 48b5616..5881007 100644 --- "a/c\316\273ash/CLasH/VHDL/Generate.hs" +++ "b/c\316\273ash/CLasH/VHDL/Generate.hs" @@ -90,9 +90,10 @@ createEntityAST vhdl_id args res = -- Create a basic Id, since VHDL doesn't grok filenames with extended Ids. ports = map (mkIfaceSigDec AST.In) args ++ (Maybe.maybeToList res_port) - ++ [clk_port] + ++ [clk_port,resetn_port] -- Add a clk port if we have state clk_port = AST.IfaceSigDec clockId AST.In std_logicTM + resetn_port = AST.IfaceSigDec resetId AST.In std_logicTM res_port = fmap (mkIfaceSigDec AST.Out) res -- | Create a port declaration @@ -166,16 +167,18 @@ mkStateProcSm :: mkStateProcSm (old, new) = do nonempty <- hasNonEmptyType old if nonempty - then return [AST.CSPSm $ AST.ProcSm label [clk] [statement]] + then return [AST.CSPSm $ AST.ProcSm label [clockId,resetId] [statement]] else return [] where label = mkVHDLBasicId $ "state" - clk = mkVHDLBasicId "clock" rising_edge = AST.NSimple $ mkVHDLBasicId "rising_edge" wform = AST.Wform [AST.WformElem (AST.PrimName $ varToVHDLName new) Nothing] - assign = AST.SigAssign (varToVHDLName old) wform - rising_edge_clk = AST.PrimFCall $ AST.FCall rising_edge [Nothing AST.:=>: (AST.ADName $ AST.NSimple clk)] - statement = AST.IfSm rising_edge_clk [assign] [] Nothing + clk_assign = AST.SigAssign (varToVHDLName old) wform + rising_edge_clk = AST.PrimFCall $ AST.FCall rising_edge [Nothing AST.:=>: (AST.ADName $ AST.NSimple clockId)] + resetn_is_low = (AST.PrimName $ AST.NSimple resetId) AST.:=: (AST.PrimLit "'0'") + reset_statement = [] + clk_statement = [AST.ElseIf rising_edge_clk [clk_assign]] + statement = AST.IfSm resetn_is_low reset_statement clk_statement Nothing -- | Transforms a core binding into a VHDL concurrent statement @@ -187,7 +190,10 @@ mkConcSm :: -- Ignore Cast expressions, they should not longer have any meaning as long as --- the type works out. +-- the type works out. Throw away state repacking +mkConcSm (bndr, to@(CoreSyn.Cast from ty)) + | hasStateType to && hasStateType from + = return ([],[]) mkConcSm (bndr, CoreSyn.Cast expr ty) = mkConcSm (bndr, expr) -- Simple a = b assignments are just like applications, but without arguments. @@ -344,12 +350,13 @@ genFCall' switch (Left res) f args = do genFCall' _ (Right name) _ _ = error $ "\nGenerate.genFCall': Cannot generate builtin function call assigned to a VHDLName: " ++ show name genFromSizedWord :: BuiltinBuilder -genFromSizedWord = genNoInsts $ genExprArgs $ genExprRes genFromSizedWord' -genFromSizedWord' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr -genFromSizedWord' (Left res) f args = do - let fname = varToString f - return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId toIntegerId)) $ - map (\exp -> Nothing AST.:=>: AST.ADExpr exp) args +genFromSizedWord = genNoInsts $ genExprArgs genFromSizedWord' +genFromSizedWord' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession [AST.ConcSm] +genFromSizedWord' (Left res) f args@[arg] = do + return $ [mkUncondAssign (Left res) arg] + -- let fname = varToString f + -- return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId toIntegerId)) $ + -- map (\exp -> Nothing AST.:=>: AST.ADExpr exp) args genFromSizedWord' (Right name) _ _ = error $ "\nGenerate.genFromSizedWord': Cannot generate builtin function call assigned to a VHDLName: " ++ show name genResize :: BuiltinBuilder @@ -378,17 +385,17 @@ genFromInteger' (Left res) f lits = do { ; (tycon, args) = Type.splitTyConApp ty ; name = Name.getOccString (TyCon.tyConName tycon) } ; - ; case name of - "RangedWord" -> return $ AST.PrimLit (show (last lits)) - otherwise -> do { - ; len <- case name of - "SizedInt" -> MonadState.lift tsType $ tfp_to_int (sized_int_len_ty ty) - "SizedWord" -> MonadState.lift tsType $ tfp_to_int (sized_word_len_ty ty) - "RangedWord" -> MonadState.lift tsType $ tfp_to_int (ranged_word_bound_ty ty) - ; let fname = case name of "SizedInt" -> toSignedId ; "SizedWord" -> toUnsignedId - ; return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId fname)) - [Nothing AST.:=>: AST.ADExpr (AST.PrimLit (show (last lits))), Nothing AST.:=>: AST.ADExpr( AST.PrimLit (show len))] + ; len <- case name of + "SizedInt" -> MonadState.lift tsType $ tfp_to_int (sized_int_len_ty ty) + "SizedWord" -> MonadState.lift tsType $ tfp_to_int (sized_word_len_ty ty) + "RangedWord" -> do { + ; bound <- MonadState.lift tsType $ tfp_to_int (ranged_word_bound_ty ty) + ; return $ floor (logBase 2 (fromInteger (toInteger (bound)))) + 1 } + ; let fname = case name of "SizedInt" -> toSignedId ; "SizedWord" -> toUnsignedId ; "RangedWord" -> toUnsignedId + ; return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId fname)) + [Nothing AST.:=>: AST.ADExpr (AST.PrimLit (show (last lits))), Nothing AST.:=>: AST.ADExpr( AST.PrimLit (show len))] + } genFromInteger' (Right name) _ _ = error $ "\nGenerate.genFromInteger': Cannot generate builtin function call assigned to a VHDLName: " ++ show name @@ -839,6 +846,42 @@ genIterateOrGenerate'' len iter (Left res) f [app_f, start] = do -- Return the conditional generate part return $ (AST.GenerateSm cond_label cond_scheme [] app_concsms, used) +genBlockRAM :: BuiltinBuilder +genBlockRAM = genNoInsts $ genExprArgs genBlockRAM' + +genBlockRAM' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession [AST.ConcSm] +genBlockRAM' (Left res) f args@[data_in,rdaddr,wraddr,wrenable] = do + -- Get the ram type + let (tup,data_out) = Type.splitAppTy (Var.varType res) + let (tup',ramvec) = Type.splitAppTy tup + let Just realram = Type.coreView ramvec + let Just (tycon, types) = Type.splitTyConApp_maybe realram + Just ram_vhdl_ty <- MonadState.lift tsType $ vhdl_ty "wtf" (head types) + -- Make the intermediate vector + let ram_dec = AST.BDISD $ AST.SigDec ram_id ram_vhdl_ty Nothing + -- Get the data_out name + reslabels <- MonadState.lift tsType $ getFieldLabels (Var.varType res) + let resname' = varToVHDLName res + let resname = mkSelectedName resname' (reslabels!!0) + let rdaddr_int = genExprFCall (mkVHDLBasicId toIntegerId) rdaddr + let argexpr = vhdlNameToVHDLExpr $ mkIndexedName (AST.NSimple ram_id) rdaddr_int + let assign = mkUncondAssign (Right resname) argexpr + let block_label = mkVHDLExtId ("blockRAM" ++ (varToString res)) + let block = AST.BlockSm block_label [] (AST.PMapAspect []) [ram_dec] [assign, mkUpdateProcSm] + return [AST.CSBSm block] + where + ram_id = mkVHDLBasicId "ram" + mkUpdateProcSm :: AST.ConcSm + mkUpdateProcSm = AST.CSPSm $ AST.ProcSm proclabel [clockId] [statement] + where + proclabel = mkVHDLBasicId "updateRAM" + rising_edge = mkVHDLBasicId "rising_edge" + wraddr_int = genExprFCall (mkVHDLBasicId toIntegerId) wraddr + ramloc = mkIndexedName (AST.NSimple ram_id) wraddr_int + wform = AST.Wform [AST.WformElem data_in Nothing] + ramassign = AST.SigAssign ramloc wform + rising_edge_clk = genExprFCall rising_edge (AST.PrimName $ AST.NSimple clockId) + statement = AST.IfSm (AST.And rising_edge_clk (wrenable AST.:=: AST.PrimLit "'1'")) [ramassign] [] Nothing ----------------------------------------------------------------------------- -- Function to generate VHDL for applications @@ -981,7 +1024,7 @@ genUnconsVectorFuns :: AST.TypeMark -- ^ type of the vector elements -> [(String, (AST.SubProgBody, [String]))] genUnconsVectorFuns elemTM vectorTM = [ (exId, (AST.SubProgBody exSpec [] [exExpr],[])) - , (replaceId, (AST.SubProgBody replaceSpec [AST.SPVD replaceVar] [replaceExpr,replaceRet],[])) + , (replaceId, (AST.SubProgBody replaceSpec [AST.SPVD replaceVar] [replaceExpr1,replaceExpr2,replaceRet],[])) , (lastId, (AST.SubProgBody lastSpec [] [lastExpr],[])) , (initId, (AST.SubProgBody initSpec [AST.SPVD initVar] [initExpr, initRet],[])) , (minimumId, (AST.SubProgBody minimumSpec [] [minimumExpr],[])) @@ -1017,12 +1060,11 @@ genUnconsVectorFuns elemTM vectorTM = sPar = AST.unsafeVHDLBasicId "s" resId = AST.unsafeVHDLBasicId "res" exSpec = AST.Function (mkVHDLExtId exId) [AST.IfaceVarDec vecPar vectorTM, - AST.IfaceVarDec ixPar naturalTM] elemTM + AST.IfaceVarDec ixPar unsignedTM] elemTM exExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NIndexed - (AST.IndexedName (AST.NSimple vecPar) [AST.PrimName $ - AST.NSimple ixPar])) + (AST.IndexedName (AST.NSimple vecPar) [genExprFCall (mkVHDLBasicId toIntegerId) (AST.PrimName $ AST.NSimple $ ixPar)])) replaceSpec = AST.Function (mkVHDLExtId replaceId) [ AST.IfaceVarDec vecPar vectorTM - , AST.IfaceVarDec iPar naturalTM + , AST.IfaceVarDec iPar unsignedTM , AST.IfaceVarDec aPar elemTM ] vectorTM -- variable res : fsvec_x (0 to vec'length-1); @@ -1036,13 +1078,8 @@ genUnconsVectorFuns elemTM vectorTM = (AST.PrimLit "1")) ])) Nothing -- res AST.:= vec(0 to i-1) & a & vec(i+1 to length'vec-1) - replaceExpr = AST.NSimple resId AST.:= - (vecSlice (AST.PrimLit "0") (AST.PrimName (AST.NSimple iPar) AST.:-: AST.PrimLit "1") AST.:&: - AST.PrimName (AST.NSimple aPar) AST.:&: - vecSlice (AST.PrimName (AST.NSimple iPar) AST.:+: AST.PrimLit "1") - ((AST.PrimName (AST.NAttribute $ - AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing)) - AST.:-: AST.PrimLit "1")) + replaceExpr1 = AST.NSimple resId AST.:= AST.PrimName (AST.NSimple vecPar) + replaceExpr2 = AST.NIndexed (AST.IndexedName (AST.NSimple resId) [genExprFCall (mkVHDLBasicId toIntegerId) (AST.PrimName $ AST.NSimple $ iPar)]) AST.:= AST.PrimName (AST.NSimple aPar) replaceRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId) vecSlice init last = AST.PrimName (AST.NSlice (AST.SliceName @@ -1422,6 +1459,7 @@ globalNameTable = Map.fromList , (smallIntegerId , (1, genFromInteger ) ) , (fstId , (1, genFst ) ) , (sndId , (1, genSnd ) ) + , (blockRAMId , (5, genBlockRAM ) ) --, (tfvecId , (1, genTFVec ) ) , (minimumId , (2, error $ "\nFunction name: \"minimum\" is used internally, use another name")) ]