X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=Generate.hs;h=7de216129dfbed6cf4d55fb4e415d00fbc746c19;hb=0c113a538aa9a891935665481782bdce8350e345;hp=2beacb8d5616e7c9014f3fef35a6644d02773a49;hpb=9de634dc821ab58cb0fbfcf9e19cd39a7081a826;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git diff --git a/Generate.hs b/Generate.hs index 2beacb8..7de2161 100644 --- a/Generate.hs +++ b/Generate.hs @@ -1,37 +1,277 @@ module Generate where - + +-- Standard modules +import qualified Control.Monad as Monad +import qualified Data.Map as Map +import qualified Maybe +import Data.Accessor +import Debug.Trace + +-- ForSyDe import qualified ForSyDe.Backend.VHDL.AST as AST + +-- GHC API +import CoreSyn +import Type +import qualified Var + +-- Local imports import Constants +import VHDLTypes +import VHDLTools +import CoreTools +import Pretty + +-- | A function to wrap a builder-like function that expects its arguments to +-- be expressions. +genExprArgs :: + (dst -> func -> [AST.Expr] -> res) + -> (dst -> func -> [CoreSyn.CoreExpr] -> res) +genExprArgs wrap dst func args = wrap dst func args' + where args' = map (varToVHDLExpr.exprToVar) args + +-- | A function to wrap a builder-like function that expects its arguments to +-- be variables. +genVarArgs :: + (dst -> func -> [Var.Var] -> res) + -> (dst -> func -> [CoreSyn.CoreExpr] -> res) +genVarArgs wrap dst func args = wrap dst func args' + where args' = map exprToVar args + +-- | A function to wrap a builder-like function that produces an expression +-- and expects it to be assigned to the destination. +genExprRes :: + (CoreSyn.CoreBndr -> func -> [arg] -> VHDLSession AST.Expr) + -> (CoreSyn.CoreBndr -> func -> [arg] -> VHDLSession [AST.ConcSm]) +genExprRes wrap dst func args = do + expr <- wrap dst func args + return $ [mkUncondAssign (Left dst) expr] + +-- | Generate a binary operator application. The first argument should be a +-- constructor from the AST.Expr type, e.g. AST.And. +genOperator2 :: (AST.Expr -> AST.Expr -> AST.Expr) -> BuiltinBuilder +genOperator2 op = genExprArgs $ genExprRes (genOperator2' op) +genOperator2' :: (AST.Expr -> AST.Expr -> AST.Expr) -> CoreSyn.CoreBndr -> CoreSyn.CoreBndr -> [AST.Expr] -> VHDLSession AST.Expr +genOperator2' op res f [arg1, arg2] = return $ op arg1 arg2 --- | Generate a function call from the Function Name and a list of expressions --- (its arguments) -genExprFCall :: AST.VHDLId -> [AST.Expr] -> AST.Expr -genExprFCall fName args = - AST.PrimFCall $ AST.FCall (AST.NSimple fName) $ +-- | Generate a unary operator application +genOperator1 :: (AST.Expr -> AST.Expr) -> BuiltinBuilder +genOperator1 op = genExprArgs $ genExprRes (genOperator1' op) +genOperator1' :: (AST.Expr -> AST.Expr) -> CoreSyn.CoreBndr -> CoreSyn.CoreBndr -> [AST.Expr] -> VHDLSession AST.Expr +genOperator1' op res f [arg] = return $ op arg + +-- | Generate a function call from the destination binder, function name and a +-- list of expressions (its arguments) +genFCall :: BuiltinBuilder +genFCall = genExprArgs $ genExprRes genFCall' +genFCall' :: CoreSyn.CoreBndr -> CoreSyn.CoreBndr -> [AST.Expr] -> VHDLSession AST.Expr +genFCall' res f args = do + let fname = varToString f + let el_ty = (tfvec_elem . Var.varType) res + id <- vectorFunId el_ty fname + return $ AST.PrimFCall $ AST.FCall (AST.NSimple id) $ map (\exp -> Nothing AST.:=>: AST.ADExpr exp) args --- | List version of genExprFCall1 -genExprFCall1L :: AST.VHDLId -> [AST.Expr] -> AST.Expr -genExprFCall1L fName [arg] = genExprFCall fName [arg] -genExprFCall1L _ _ = error "Generate.genExprFCall1L incorrect length" +-- | Generate a generate statement for the builtin function "map" +genMap :: BuiltinBuilder +genMap = genVarArgs genMap' +genMap' res f [mapped_f, arg] = do + signatures <- getA vsSignatures + let entity = Maybe.fromMaybe + (error $ "Using function '" ++ (varToString mapped_f) ++ "' without signature? This should not happen!") + (Map.lookup mapped_f signatures) + let + -- Setup the generate scheme + len = (tfvec_len . Var.varType) res + label = mkVHDLExtId ("mapVector" ++ (varToString res)) + nPar = AST.unsafeVHDLBasicId "n" + range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1)) + genScheme = AST.ForGn nPar range + -- Get the entity name and port names + entity_id = ent_id entity + argports = map (Monad.liftM fst) (ent_args entity) + resport = (Monad.liftM fst) (ent_res entity) + -- Assign the ports + inport = mkAssocElemIndexed (argports!!0) (varToString arg) nPar + outport = mkAssocElemIndexed resport (varToString res) nPar + clk_port = mkAssocElem (Just $ mkVHDLExtId "clk") "clk" + portassigns = Maybe.catMaybes [inport,outport,clk_port] + -- Generate the portmap + mapLabel = "map" ++ (AST.fromVHDLId entity_id) + compins = mkComponentInst mapLabel entity_id portassigns + -- Return the generate functions + genSm = AST.CSGSm $ AST.GenerateSm label genScheme [] [compins] + in + return $ [genSm] + +genZipWith :: BuiltinBuilder +genZipWith = genVarArgs genZipWith' +genZipWith' res f args@[zipped_f, arg1, arg2] = do + signatures <- getA vsSignatures + let entity = Maybe.fromMaybe + (error $ "Using function '" ++ (varToString zipped_f) ++ "' without signature? This should not happen!") + (Map.lookup zipped_f signatures) + let + -- Setup the generate scheme + len = (tfvec_len . Var.varType) res + label = mkVHDLExtId ("zipWithVector" ++ (varToString res)) + nPar = AST.unsafeVHDLBasicId "n" + range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1)) + genScheme = AST.ForGn nPar range + -- Get the entity name and port names + entity_id = ent_id entity + argports = map (Monad.liftM fst) (ent_args entity) + resport = (Monad.liftM fst) (ent_res entity) + -- Assign the ports + inport1 = mkAssocElemIndexed (argports!!0) (varToString arg1) nPar + inport2 = mkAssocElemIndexed (argports!!1) (varToString arg2) nPar + outport = mkAssocElemIndexed resport (varToString res) nPar + clk_port = mkAssocElem (Just $ mkVHDLExtId "clk") "clk" + portassigns = Maybe.catMaybes [inport1,inport2,outport,clk_port] + -- Generate the portmap + mapLabel = "zipWith" ++ (AST.fromVHDLId entity_id) + compins = mkComponentInst mapLabel entity_id portassigns + -- Return the generate functions + genSm = AST.CSGSm $ AST.GenerateSm label genScheme [] [compins] + in + return $ [genSm] + +genFoldl :: BuiltinBuilder +genFoldl = genVarArgs genFoldl' +genFoldl' resVal f [folded_f, startVal, inVec] = do + signatures <- getA vsSignatures + let entity = Maybe.fromMaybe + (error $ "Using function '" ++ (varToString folded_f) ++ "' without signature? This should not happen!") + (Map.lookup folded_f signatures) + let (vec, _) = splitAppTy (Var.varType inVec) + let vecty = Type.mkAppTy vec (Var.varType startVal) + vecType <- vhdl_ty vecty + -- Setup the generate scheme + let len = (tfvec_len . Var.varType) inVec + let genlabel = mkVHDLExtId ("foldlVector" ++ (varToString inVec)) + let blockLabel = mkVHDLExtId ("foldlVector" ++ (varToString startVal)) + let nPar = AST.unsafeVHDLBasicId "n" + let range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1)) + let genScheme = AST.ForGn nPar range + -- Make the intermediate vector + let tmpVec = AST.BDISD $ AST.SigDec (mkVHDLExtId "tmp") vecType Nothing + -- Return the generate functions + let genSm = AST.GenerateSm genlabel genScheme [] [ AST.CSGSm (genFirstCell entity [startVal, inVec, resVal]) + , AST.CSGSm (genOtherCell entity [startVal, inVec, resVal]) + , AST.CSGSm (genLastCell entity [startVal, inVec, resVal]) + ] + return [AST.CSBSm $ AST.BlockSm blockLabel [] (AST.PMapAspect []) [tmpVec] [AST.CSGSm genSm]] + where + genFirstCell :: Entity -> [CoreSyn.CoreBndr] -> AST.GenerateSm + genFirstCell entity [startVal, inVec, resVal] = cellGn + where + cellLabel = mkVHDLExtId "firstcell" + cellGenScheme = AST.IfGn ((AST.PrimName $ AST.NSimple nPar) AST.:=: (AST.PrimLit "0")) + nPar = AST.unsafeVHDLBasicId "n" + -- Get the entity name and port names + entity_id = ent_id entity + argports = map (Monad.liftM fst) (ent_args entity) + resport = (Monad.liftM fst) (ent_res entity) + -- Assign the ports + inport1 = mkAssocElem (argports!!0) (varToString startVal) + inport2 = mkAssocElemIndexed (argports!!1) (varToString inVec) nPar + outport = mkAssocElemIndexed resport "tmp" nPar + clk_port = mkAssocElem (Just $ mkVHDLExtId "clk") "clk" + portassigns = Maybe.catMaybes [inport1,inport2,outport,clk_port] + -- Generate the portmap + mapLabel = "cell" ++ (AST.fromVHDLId entity_id) + compins = mkComponentInst mapLabel entity_id portassigns + -- Return the generate functions + cellGn = AST.GenerateSm cellLabel cellGenScheme [] [compins] + genOtherCell :: Entity -> [CoreSyn.CoreBndr] -> AST.GenerateSm + genOtherCell entity [startVal, inVec, resVal] = cellGn + where + len = (tfvec_len . Var.varType) inVec + cellLabel = mkVHDLExtId "othercell" + cellGenScheme = AST.IfGn $ AST.And ((AST.PrimName $ AST.NSimple nPar) AST.:>: (AST.PrimLit "0")) + ((AST.PrimName $ AST.NSimple nPar) AST.:<: (AST.PrimLit $ show (len-1))) + nPar = AST.unsafeVHDLBasicId "n" + -- Get the entity name and port names + entity_id = ent_id entity + argports = map (Monad.liftM fst) (ent_args entity) + resport = (Monad.liftM fst) (ent_res entity) + -- Assign the ports + inport1 = mkAssocElemIndexed (argports!!0) "tmp" (AST.unsafeVHDLBasicId "n-1") + inport2 = mkAssocElemIndexed (argports!!1) (varToString inVec) nPar + outport = mkAssocElemIndexed resport "tmp" nPar + clk_port = mkAssocElem (Just $ mkVHDLExtId "clk") "clk" + portassigns = Maybe.catMaybes [inport1,inport2,outport,clk_port] + -- Generate the portmap + mapLabel = "cell" ++ (AST.fromVHDLId entity_id) + compins = mkComponentInst mapLabel entity_id portassigns + -- Return the generate functions + cellGn = AST.GenerateSm cellLabel cellGenScheme [] [compins] + genLastCell :: Entity -> [CoreSyn.CoreBndr] -> AST.GenerateSm + genLastCell entity [startVal, inVec, resVal] = cellGn + where + len = (tfvec_len . Var.varType) inVec + cellLabel = mkVHDLExtId "lastCell" + cellGenScheme = AST.IfGn ((AST.PrimName $ AST.NSimple nPar) AST.:=: (AST.PrimLit $ show (len-1))) + nPar = AST.unsafeVHDLBasicId "n" + -- Get the entity name and port names + entity_id = ent_id entity + argports = map (Monad.liftM fst) (ent_args entity) + resport = (Monad.liftM fst) (ent_res entity) + -- Assign the ports + inport1 = mkAssocElemIndexed (argports!!0) "tmp" (AST.unsafeVHDLBasicId "n-1") + inport2 = mkAssocElemIndexed (argports!!1) (varToString inVec) nPar + outport = mkAssocElemIndexed resport "tmp" nPar + clk_port = mkAssocElem (Just $ mkVHDLExtId "clk") "clk" + portassigns = Maybe.catMaybes [inport1,inport2,outport,clk_port] + -- Generate the portmap + mapLabel = "cell" ++ (AST.fromVHDLId entity_id) + compins = mkComponentInst mapLabel entity_id portassigns + -- Generate the output assignment + assign = mkUncondAssign (Left resVal) (AST.PrimName (AST.NIndexed (AST.IndexedName + (AST.NSimple (mkVHDLExtId "tmp")) [AST.PrimLit $ show (len-1)]))) + -- Return the generate functions + cellGn = AST.GenerateSm cellLabel cellGenScheme [] [compins,assign] + --- | List version of genExprFCall2 -genExprFCall2L :: AST.VHDLId -> [AST.Expr] -> AST.Expr -genExprFCall2L fName [arg1, arg2] = genExprFCall fName [arg1,arg2] -genExprFCall2L _ _ = error "Generate.genExprFCall2L incorrect length" +-- Returns the VHDLId of the vector function with the given name for the given +-- element type. Generates -- this function if needed. +vectorFunId :: Type.Type -> String -> VHDLSession AST.VHDLId +vectorFunId el_ty fname = do + elemTM <- vhdl_ty el_ty + -- TODO: This should not be duplicated from mk_vector_ty. Probably but it in + -- the VHDLState or something. + let vectorTM = mkVHDLExtId $ "vector_" ++ (AST.fromVHDLId elemTM) + typefuns <- getA vsTypeFuns + case Map.lookup (OrdType el_ty, fname) typefuns of + -- Function already generated, just return it + Just (id, _) -> return id + -- Function not generated yet, generate it + Nothing -> do + let functions = genUnconsVectorFuns elemTM vectorTM + case lookup fname functions of + Just body -> do + modA vsTypeFuns $ Map.insert (OrdType el_ty, fname) (function_id, body) + return function_id + Nothing -> error $ "I don't know how to generate vector function " ++ fname + where + function_id = mkVHDLExtId fname genUnconsVectorFuns :: AST.TypeMark -- ^ type of the vector elements -> AST.TypeMark -- ^ type of the vector - -> [AST.SubProgBody] + -> [(String, AST.SubProgBody)] genUnconsVectorFuns elemTM vectorTM = - [ AST.SubProgBody exSpec [] [exExpr] - , AST.SubProgBody replaceSpec [AST.SPVD replaceVar] [replaceExpr,replaceRet] - , AST.SubProgBody headSpec [] [headExpr] - , AST.SubProgBody lastSpec [] [lastExpr] - , AST.SubProgBody initSpec [AST.SPVD initVar] [initExpr, initRet] - , AST.SubProgBody tailSpec [AST.SPVD tailVar] [tailExpr, tailRet] - , AST.SubProgBody takeSpec [AST.SPVD takeVar] [takeExpr, takeRet] - , AST.SubProgBody dropSpec [AST.SPVD dropVar] [dropExpr, dropRet] + [ (exId, AST.SubProgBody exSpec [] [exExpr]) + , (replaceId, AST.SubProgBody replaceSpec [AST.SPVD replaceVar] [replaceExpr,replaceRet]) + , (headId, AST.SubProgBody headSpec [] [headExpr]) + , (lastId, AST.SubProgBody lastSpec [] [lastExpr]) + , (initId, AST.SubProgBody initSpec [AST.SPVD initVar] [initExpr, initRet]) + , (tailId, AST.SubProgBody tailSpec [AST.SPVD tailVar] [tailExpr, tailRet]) + , (takeId, AST.SubProgBody takeSpec [AST.SPVD takeVar] [takeExpr, takeRet]) + , (dropId, AST.SubProgBody dropSpec [AST.SPVD dropVar] [dropExpr, dropRet]) + , (plusgtId, AST.SubProgBody plusgtSpec [AST.SPVD plusgtVar] [plusgtExpr, plusgtRet]) + , (emptyId, AST.SubProgBody emptySpec [AST.SPCD emptyVar] [emptyExpr]) + , (singletonId, AST.SubProgBody singletonSpec [AST.SPVD singletonVar] [singletonRet]) + , (copyId, AST.SubProgBody copySpec [AST.SPVD copyVar] [copyExpr]) ] where ixPar = AST.unsafeVHDLBasicId "ix" @@ -41,12 +281,12 @@ genUnconsVectorFuns elemTM vectorTM = iPar = iId aPar = AST.unsafeVHDLBasicId "a" resId = AST.unsafeVHDLBasicId "res" - exSpec = AST.Function exId [AST.IfaceVarDec vecPar vectorTM, + exSpec = AST.Function (mkVHDLExtId exId) [AST.IfaceVarDec vecPar vectorTM, AST.IfaceVarDec ixPar naturalTM] elemTM exExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NIndexed (AST.IndexedName (AST.NSimple vecPar) [AST.PrimName $ AST.NSimple ixPar])) - replaceSpec = AST.Function replaceId [ AST.IfaceVarDec vecPar vectorTM + replaceSpec = AST.Function (mkVHDLExtId replaceId) [ AST.IfaceVarDec vecPar vectorTM , AST.IfaceVarDec iPar naturalTM , AST.IfaceVarDec aPar elemTM ] vectorTM @@ -54,10 +294,10 @@ genUnconsVectorFuns elemTM vectorTM = replaceVar = AST.VarDec resId (AST.SubtypeIn vectorTM - (Just $ AST.IndexConstraint + (Just $ AST.ConstraintIndex $ AST.IndexConstraint [AST.ToRange (AST.PrimLit "0") (AST.PrimName (AST.NAttribute $ - AST.AttribName (AST.NSimple vecPar) lengthId Nothing) AST.:-: + AST.AttribName (AST.NSimple vecPar) (mkVHDLBasicId lengthId) Nothing) AST.:-: (AST.PrimLit "1")) ])) Nothing -- res AST.:= vec(0 to i-1) & a & vec(i+1 to length'vec-1) @@ -66,67 +306,67 @@ genUnconsVectorFuns elemTM vectorTM = 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) lengthId Nothing)) + AST.AttribName (AST.NSimple vecPar) (mkVHDLBasicId lengthId) Nothing)) AST.:-: AST.PrimLit "1")) replaceRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId) vecSlice init last = AST.PrimName (AST.NSlice (AST.SliceName (AST.NSimple vecPar) (AST.ToRange init last))) - headSpec = AST.Function headId [AST.IfaceVarDec vecPar vectorTM] elemTM + headSpec = AST.Function (mkVHDLExtId headId) [AST.IfaceVarDec vecPar vectorTM] elemTM -- return vec(0); headExpr = AST.ReturnSm (Just $ (AST.PrimName $ AST.NIndexed (AST.IndexedName (AST.NSimple vecPar) [AST.PrimLit "0"]))) - lastSpec = AST.Function lastId [AST.IfaceVarDec vecPar vectorTM] elemTM + lastSpec = AST.Function (mkVHDLExtId lastId) [AST.IfaceVarDec vecPar vectorTM] elemTM -- return vec(vec'length-1); lastExpr = AST.ReturnSm (Just $ (AST.PrimName $ AST.NIndexed (AST.IndexedName (AST.NSimple vecPar) [AST.PrimName (AST.NAttribute $ - AST.AttribName (AST.NSimple vecPar) lengthId Nothing) + AST.AttribName (AST.NSimple vecPar) (mkVHDLBasicId lengthId) Nothing) AST.:-: AST.PrimLit "1"]))) - initSpec = AST.Function initId [AST.IfaceVarDec vecPar vectorTM] vectorTM + initSpec = AST.Function (mkVHDLExtId initId) [AST.IfaceVarDec vecPar vectorTM] vectorTM -- variable res : fsvec_x (0 to vec'length-2); initVar = AST.VarDec resId (AST.SubtypeIn vectorTM - (Just $ AST.IndexConstraint + (Just $ AST.ConstraintIndex $ AST.IndexConstraint [AST.ToRange (AST.PrimLit "0") (AST.PrimName (AST.NAttribute $ - AST.AttribName (AST.NSimple vecPar) lengthId Nothing) AST.:-: + AST.AttribName (AST.NSimple vecPar) (mkVHDLBasicId lengthId) Nothing) AST.:-: (AST.PrimLit "2")) ])) Nothing -- resAST.:= vec(0 to vec'length-2) initExpr = AST.NSimple resId AST.:= (vecSlice (AST.PrimLit "0") (AST.PrimName (AST.NAttribute $ - AST.AttribName (AST.NSimple vecPar) lengthId Nothing) + AST.AttribName (AST.NSimple vecPar) (mkVHDLBasicId lengthId) Nothing) AST.:-: AST.PrimLit "2")) initRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId) - tailSpec = AST.Function tailId [AST.IfaceVarDec vecPar vectorTM] vectorTM + tailSpec = AST.Function (mkVHDLExtId tailId) [AST.IfaceVarDec vecPar vectorTM] vectorTM -- variable res : fsvec_x (0 to vec'length-2); tailVar = AST.VarDec resId (AST.SubtypeIn vectorTM - (Just $ AST.IndexConstraint + (Just $ AST.ConstraintIndex $ AST.IndexConstraint [AST.ToRange (AST.PrimLit "0") (AST.PrimName (AST.NAttribute $ - AST.AttribName (AST.NSimple vecPar) lengthId Nothing) AST.:-: + AST.AttribName (AST.NSimple vecPar) (mkVHDLBasicId lengthId) Nothing) AST.:-: (AST.PrimLit "2")) ])) Nothing -- res AST.:= vec(1 to vec'length-1) tailExpr = AST.NSimple resId AST.:= (vecSlice (AST.PrimLit "1") (AST.PrimName (AST.NAttribute $ - AST.AttribName (AST.NSimple vecPar) lengthId Nothing) + AST.AttribName (AST.NSimple vecPar) (mkVHDLBasicId lengthId) Nothing) AST.:-: AST.PrimLit "1")) tailRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId) - takeSpec = AST.Function takeId [AST.IfaceVarDec nPar naturalTM, + takeSpec = AST.Function (mkVHDLExtId takeId) [AST.IfaceVarDec nPar naturalTM, AST.IfaceVarDec vecPar vectorTM ] vectorTM -- variable res : fsvec_x (0 to n-1); takeVar = AST.VarDec resId (AST.SubtypeIn vectorTM - (Just $ AST.IndexConstraint + (Just $ AST.ConstraintIndex $ AST.IndexConstraint [AST.ToRange (AST.PrimLit "0") ((AST.PrimName (AST.NSimple nPar)) AST.:-: (AST.PrimLit "1")) ])) @@ -136,22 +376,68 @@ genUnconsVectorFuns elemTM vectorTM = (vecSlice (AST.PrimLit "1") (AST.PrimName (AST.NSimple $ nPar) AST.:-: AST.PrimLit "1")) takeRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId) - dropSpec = AST.Function dropId [AST.IfaceVarDec nPar naturalTM, + dropSpec = AST.Function (mkVHDLExtId dropId) [AST.IfaceVarDec nPar naturalTM, AST.IfaceVarDec vecPar vectorTM ] vectorTM -- variable res : fsvec_x (0 to vec'length-n-1); dropVar = AST.VarDec resId (AST.SubtypeIn vectorTM - (Just $ AST.IndexConstraint + (Just $ AST.ConstraintIndex $ AST.IndexConstraint [AST.ToRange (AST.PrimLit "0") (AST.PrimName (AST.NAttribute $ - AST.AttribName (AST.NSimple vecPar) lengthId Nothing) AST.:-: + AST.AttribName (AST.NSimple vecPar) (mkVHDLBasicId lengthId) Nothing) AST.:-: (AST.PrimName $ AST.NSimple nPar)AST.:-: (AST.PrimLit "1")) ])) Nothing -- res AST.:= vec(n to vec'length-1) dropExpr = AST.NSimple resId AST.:= (vecSlice (AST.PrimName $ AST.NSimple nPar) (AST.PrimName (AST.NAttribute $ - AST.AttribName (AST.NSimple vecPar) lengthId Nothing) + AST.AttribName (AST.NSimple vecPar) (mkVHDLBasicId lengthId) Nothing) AST.:-: AST.PrimLit "1")) - dropRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId) \ No newline at end of file + dropRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId) + plusgtSpec = AST.Function (mkVHDLExtId plusgtId) [AST.IfaceVarDec aPar elemTM, + AST.IfaceVarDec vecPar vectorTM] vectorTM + -- variable res : fsvec_x (0 to vec'length); + plusgtVar = + AST.VarDec resId + (AST.SubtypeIn vectorTM + (Just $ AST.ConstraintIndex $ AST.IndexConstraint + [AST.ToRange (AST.PrimLit "0") + (AST.PrimName (AST.NAttribute $ + AST.AttribName (AST.NSimple vecPar) (mkVHDLBasicId lengthId) Nothing))])) + Nothing + plusgtExpr = AST.NSimple resId AST.:= + ((AST.PrimName $ AST.NSimple aPar) AST.:&: + (AST.PrimName $ AST.NSimple vecPar)) + plusgtRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId) + emptySpec = AST.Function (mkVHDLExtId emptyId) [] vectorTM + emptyVar = + AST.ConstDec resId + (AST.SubtypeIn vectorTM Nothing) + (Just $ AST.PrimLit "\"\"") + emptyExpr = AST.ReturnSm (Just $ AST.PrimName (AST.NSimple resId)) + singletonSpec = AST.Function (mkVHDLExtId singletonId) [AST.IfaceVarDec aPar elemTM ] + vectorTM + -- variable res : fsvec_x (0 to 0) := (others => a); + singletonVar = + AST.VarDec resId + (AST.SubtypeIn vectorTM + (Just $ AST.ConstraintIndex $ AST.IndexConstraint + [AST.ToRange (AST.PrimLit "0") (AST.PrimLit "0")])) + (Just $ AST.Aggregate [AST.ElemAssoc (Just AST.Others) + (AST.PrimName $ AST.NSimple aPar)]) + singletonRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId) + copySpec = AST.Function (mkVHDLExtId copyId) [AST.IfaceVarDec nPar naturalTM, + AST.IfaceVarDec aPar elemTM ] vectorTM + -- variable res : fsvec_x (0 to n-1) := (others => a); + copyVar = + AST.VarDec resId + (AST.SubtypeIn vectorTM + (Just $ AST.ConstraintIndex $ AST.IndexConstraint + [AST.ToRange (AST.PrimLit "0") + ((AST.PrimName (AST.NSimple nPar)) AST.:-: + (AST.PrimLit "1")) ])) + (Just $ AST.Aggregate [AST.ElemAssoc (Just AST.Others) + (AST.PrimName $ AST.NSimple aPar)]) + -- return res + copyExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)