1 module CLasH.VHDL.Generate where
4 import qualified Data.List as List
5 import qualified Data.Map as Map
6 import qualified Control.Monad as Monad
8 import qualified Data.Either as Either
10 import Data.Accessor.MonadState as MonadState
14 import qualified Language.VHDL.AST as AST
17 import qualified CoreSyn
21 import qualified IdInfo
22 import qualified Literal
24 import qualified TyCon
27 import CLasH.Translator.TranslatorTypes
28 import CLasH.VHDL.Constants
29 import CLasH.VHDL.VHDLTypes
30 import CLasH.VHDL.VHDLTools
31 import CLasH.Utils as Utils
32 import CLasH.Utils.Core.CoreTools
33 import CLasH.Utils.Pretty
34 import qualified CLasH.Normalize as Normalize
36 -----------------------------------------------------------------------------
37 -- Functions to generate VHDL for user-defined functions.
38 -----------------------------------------------------------------------------
40 -- | Create an entity for a given function
43 -> TranslatorSession Entity -- ^ The resulting entity
45 getEntity fname = Utils.makeCached fname tsEntities $ do
46 expr <- Normalize.getNormalized fname
47 -- Strip off lambda's, these will be arguments
48 let (args, letexpr) = CoreSyn.collectBinders expr
49 -- Generate ports for all non-empty types
50 args' <- catMaybesM $ mapM mkMap args
51 -- There must be a let at top level
52 let (CoreSyn.Let binds (CoreSyn.Var res)) = letexpr
53 -- TODO: Handle Nothing
55 let vhdl_id = mkVHDLBasicId $ varToString fname ++ "_" ++ varToStringUniq fname
56 let ent_decl = createEntityAST vhdl_id args' res'
57 let signature = Entity vhdl_id args' res' ent_decl
61 --[(SignalId, SignalInfo)]
63 -> TranslatorSession (Maybe Port)
66 --info = Maybe.fromMaybe
67 -- (error $ "Signal not found in the name map? This should not happen!")
69 -- Assume the bndr has a valid VHDL id already
72 error_msg = "\nVHDL.createEntity.mkMap: Can not create entity: " ++ pprString fname ++ "\nbecause no type can be created for port: " ++ pprString bndr
74 type_mark_maybe <- MonadState.lift tsType $ vhdl_ty error_msg ty
75 case type_mark_maybe of
76 Just type_mark -> return $ Just (id, type_mark)
77 Nothing -> return Nothing
80 -- | Create the VHDL AST for an entity
82 AST.VHDLId -- ^ The name of the function
83 -> [Port] -- ^ The entity's arguments
84 -> Maybe Port -- ^ The entity's result
85 -> AST.EntityDec -- ^ The entity with the ent_decl filled in as well
87 createEntityAST vhdl_id args res =
88 AST.EntityDec vhdl_id ports
90 -- Create a basic Id, since VHDL doesn't grok filenames with extended Ids.
91 ports = map (mkIfaceSigDec AST.In) args
92 ++ (Maybe.maybeToList res_port)
94 -- Add a clk port if we have state
95 clk_port = AST.IfaceSigDec clockId AST.In std_logicTM
96 res_port = fmap (mkIfaceSigDec AST.Out) res
98 -- | Create a port declaration
100 AST.Mode -- ^ The mode for the port (In / Out)
101 -> Port -- ^ The id and type for the port
102 -> AST.IfaceSigDec -- ^ The resulting port declaration
104 mkIfaceSigDec mode (id, ty) = AST.IfaceSigDec id mode ty
106 -- | Create an architecture for a given function
108 CoreSyn.CoreBndr -- ^ The function to get an architecture for
109 -> TranslatorSession (Architecture, [CoreSyn.CoreBndr])
110 -- ^ The architecture for this function
112 getArchitecture fname = Utils.makeCached fname tsArchitectures $ do
113 expr <- Normalize.getNormalized fname
114 signature <- getEntity fname
115 let entity_id = ent_id signature
116 -- Strip off lambda's, these will be arguments
117 let (args, letexpr) = CoreSyn.collectBinders expr
118 -- There must be a let at top level
119 let (CoreSyn.Let (CoreSyn.Rec binds) (CoreSyn.Var res)) = letexpr
121 -- Create signal declarations for all binders in the let expression, except
122 -- for the output port (that will already have an output port declared in
124 sig_dec_maybes <- mapM (mkSigDec . fst) (filter ((/=res).fst) binds)
125 let sig_decs = Maybe.catMaybes $ sig_dec_maybes
126 -- Process each bind, resulting in info about state variables and concurrent
128 (state_vars, sms) <- Monad.mapAndUnzipM dobind binds
129 let (in_state_maybes, out_state_maybes) = unzip state_vars
130 let (statementss, used_entitiess) = unzip sms
131 -- Create a state proc, if needed
132 let state_proc = case (Maybe.catMaybes in_state_maybes, Maybe.catMaybes out_state_maybes) of
133 ([in_state], [out_state]) -> [AST.CSPSm $ mkStateProcSm (in_state, out_state)]
135 (ins, outs) -> error $ "Weird use of state in " ++ show fname ++ ". In: " ++ show ins ++ " Out: " ++ show outs
136 -- Join the create statements and the (optional) state_proc
137 let statements = concat statementss ++ state_proc
138 -- Create the architecture
139 let arch = AST.ArchBody (mkVHDLBasicId "structural") (AST.NSimple entity_id) (map AST.BDISD sig_decs) statements
140 let used_entities = concat used_entitiess
141 return (arch, used_entities)
143 dobind :: (CoreSyn.CoreBndr, CoreSyn.CoreExpr) -- ^ The bind to process
144 -> TranslatorSession ((Maybe CoreSyn.CoreBndr, Maybe CoreSyn.CoreBndr), ([AST.ConcSm], [CoreSyn.CoreBndr]))
145 -- ^ ((Input state variable, output state variable), (statements, used entities))
146 -- newtype unpacking is just a cast
147 dobind (bndr, (CoreSyn.Cast expr coercion))
149 = return ((Just bndr, Nothing), ([], []))
150 -- With simplCore, newtype packing is just a cast
151 dobind (bndr, expr@(CoreSyn.Cast (CoreSyn.Var state) coercion))
153 = return ((Nothing, Just state), ([], []))
154 -- Without simplCore, newtype packing uses a data constructor
155 dobind (bndr, (CoreSyn.App (CoreSyn.App (CoreSyn.Var con) (CoreSyn.Type _)) (CoreSyn.Var state)))
157 = return ((Nothing, Just state), ([], []))
158 -- Anything else is handled by mkConcSm
161 return ((Nothing, Nothing), sms)
164 (CoreSyn.CoreBndr, CoreSyn.CoreBndr) -- ^ The current and new state variables
165 -> AST.ProcSm -- ^ The resulting statement
166 mkStateProcSm (old, new) =
167 AST.ProcSm label [clk] [statement]
169 label = mkVHDLBasicId $ "state"
170 clk = mkVHDLBasicId "clock"
171 rising_edge = AST.NSimple $ mkVHDLBasicId "rising_edge"
172 wform = AST.Wform [AST.WformElem (AST.PrimName $ varToVHDLName new) Nothing]
173 assign = AST.SigAssign (varToVHDLName old) wform
174 rising_edge_clk = AST.PrimFCall $ AST.FCall rising_edge [Nothing AST.:=>: (AST.ADName $ AST.NSimple clk)]
175 statement = AST.IfSm rising_edge_clk [assign] [] Nothing
178 -- | Transforms a core binding into a VHDL concurrent statement
180 (CoreSyn.CoreBndr, CoreSyn.CoreExpr) -- ^ The binding to process
181 -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
182 -- ^ The corresponding VHDL concurrent statements and entities
186 -- Ignore Cast expressions, they should not longer have any meaning as long as
187 -- the type works out.
188 mkConcSm (bndr, CoreSyn.Cast expr ty) = mkConcSm (bndr, expr)
190 -- Simple a = b assignments are just like applications, but without arguments.
191 -- We can't just generate an unconditional assignment here, since b might be a
192 -- top level binding (e.g., a function with no arguments).
193 mkConcSm (bndr, CoreSyn.Var v) = do
194 genApplication (Left bndr) v []
196 mkConcSm (bndr, app@(CoreSyn.App _ _))= do
197 let (CoreSyn.Var f, args) = CoreSyn.collectArgs app
198 let valargs = get_val_args (Var.varType f) args
199 genApplication (Left bndr) f (map Left valargs)
201 -- A single alt case must be a selector. This means thee scrutinee is a simple
202 -- variable, the alternative is a dataalt with a single non-wild binder that
204 mkConcSm (bndr, expr@(CoreSyn.Case (CoreSyn.Var scrut) b ty [alt]))
205 -- Don't generate VHDL for substate extraction
206 | hasStateType bndr = return ([], [])
209 (CoreSyn.DataAlt dc, bndrs, (CoreSyn.Var sel_bndr)) -> do
210 bndrs' <- Monad.filterM hasNonEmptyType bndrs
211 case List.elemIndex sel_bndr bndrs' of
213 labels <- MonadState.lift tsType $ getFieldLabels (Id.idType scrut)
214 let label = labels!!i
215 let sel_name = mkSelectedName (varToVHDLName scrut) label
216 let sel_expr = AST.PrimName sel_name
217 return ([mkUncondAssign (Left bndr) sel_expr], [])
218 Nothing -> error $ "\nVHDL.mkConcSM: Not in normal form: Not a selector case:\n" ++ (pprString expr)
220 _ -> error $ "\nVHDL.mkConcSM: Not in normal form: Not a selector case:\n" ++ (pprString expr)
222 -- Multiple case alt are be conditional assignments and have only wild
223 -- binders in the alts and only variables in the case values and a variable
224 -- for a scrutinee. We check the constructor of the second alt, since the
225 -- first is the default case, if there is any.
226 mkConcSm (bndr, (CoreSyn.Case (CoreSyn.Var scrut) b ty [(_, _, CoreSyn.Var false), (con, _, CoreSyn.Var true)])) = do
227 scrut' <- MonadState.lift tsType $ varToVHDLExpr scrut
228 let cond_expr = scrut' AST.:=: (altconToVHDLExpr con)
229 true_expr <- MonadState.lift tsType $ varToVHDLExpr true
230 false_expr <- MonadState.lift tsType $ varToVHDLExpr false
231 return ([mkCondAssign (Left bndr) cond_expr true_expr false_expr], [])
233 mkConcSm (_, (CoreSyn.Case (CoreSyn.Var _) _ _ alts)) = error "\nVHDL.mkConcSm: Not in normal form: Case statement with more than two alternatives"
234 mkConcSm (_, CoreSyn.Case _ _ _ _) = error "\nVHDL.mkConcSm: Not in normal form: Case statement has does not have a simple variable as scrutinee"
235 mkConcSm (bndr, expr) = error $ "\nVHDL.mkConcSM: Unsupported binding in let expression: " ++ pprString bndr ++ " = " ++ pprString expr
237 -----------------------------------------------------------------------------
238 -- Functions to generate VHDL for builtin functions
239 -----------------------------------------------------------------------------
241 -- | A function to wrap a builder-like function that expects its arguments to
243 genExprArgs wrap dst func args = do
244 args' <- argsToVHDLExprs args
247 -- | Turn the all lefts into VHDL Expressions.
248 argsToVHDLExprs :: [Either CoreSyn.CoreExpr AST.Expr] -> TranslatorSession [AST.Expr]
249 argsToVHDLExprs = catMaybesM . (mapM argToVHDLExpr)
251 argToVHDLExpr :: Either CoreSyn.CoreExpr AST.Expr -> TranslatorSession (Maybe AST.Expr)
252 argToVHDLExpr (Left expr) = MonadState.lift tsType $ do
253 let errmsg = "Generate.argToVHDLExpr: Using non-representable type? Should not happen!"
254 ty_maybe <- vhdl_ty errmsg expr
257 vhdl_expr <- varToVHDLExpr $ exprToVar expr
258 return $ Just vhdl_expr
259 Nothing -> return $ Nothing
261 argToVHDLExpr (Right expr) = return $ Just expr
263 -- A function to wrap a builder-like function that generates no component
266 (dst -> func -> args -> TranslatorSession [AST.ConcSm])
267 -> (dst -> func -> args -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr]))
268 genNoInsts wrap dst func args = do
269 concsms <- wrap dst func args
272 -- | A function to wrap a builder-like function that expects its arguments to
275 (dst -> func -> [Var.Var] -> res)
276 -> (dst -> func -> [Either CoreSyn.CoreExpr AST.Expr] -> res)
277 genVarArgs wrap dst func args = wrap dst func args'
279 args' = map exprToVar exprargs
280 -- Check (rather crudely) that all arguments are CoreExprs
281 (exprargs, []) = Either.partitionEithers args
283 -- | A function to wrap a builder-like function that expects its arguments to
286 (dst -> func -> [Literal.Literal] -> res)
287 -> (dst -> func -> [Either CoreSyn.CoreExpr AST.Expr] -> res)
288 genLitArgs wrap dst func args = wrap dst func args'
290 args' = map exprToLit litargs
291 -- FIXME: Check if we were passed an CoreSyn.App
292 litargs = concat (map getLiterals exprargs)
293 (exprargs, []) = Either.partitionEithers args
295 -- | A function to wrap a builder-like function that produces an expression
296 -- and expects it to be assigned to the destination.
298 ((Either CoreSyn.CoreBndr AST.VHDLName) -> func -> [arg] -> TranslatorSession AST.Expr)
299 -> ((Either CoreSyn.CoreBndr AST.VHDLName) -> func -> [arg] -> TranslatorSession [AST.ConcSm])
300 genExprRes wrap dst func args = do
301 expr <- wrap dst func args
302 return $ [mkUncondAssign dst expr]
304 -- | Generate a binary operator application. The first argument should be a
305 -- constructor from the AST.Expr type, e.g. AST.And.
306 genOperator2 :: (AST.Expr -> AST.Expr -> AST.Expr) -> BuiltinBuilder
307 genOperator2 op = genNoInsts $ genExprArgs $ genExprRes (genOperator2' op)
308 genOperator2' :: (AST.Expr -> AST.Expr -> AST.Expr) -> dst -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
309 genOperator2' op _ f [arg1, arg2] = return $ op arg1 arg2
311 -- | Generate a unary operator application
312 genOperator1 :: (AST.Expr -> AST.Expr) -> BuiltinBuilder
313 genOperator1 op = genNoInsts $ genExprArgs $ genExprRes (genOperator1' op)
314 genOperator1' :: (AST.Expr -> AST.Expr) -> dst -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
315 genOperator1' op _ f [arg] = return $ op arg
317 -- | Generate a unary operator application
318 genNegation :: BuiltinBuilder
319 genNegation = genNoInsts $ genVarArgs $ genExprRes genNegation'
320 genNegation' :: dst -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession AST.Expr
321 genNegation' _ f [arg] = do
322 arg1 <- MonadState.lift tsType $ varToVHDLExpr arg
323 let ty = Var.varType arg
324 let (tycon, args) = Type.splitTyConApp ty
325 let name = Name.getOccString (TyCon.tyConName tycon)
327 "SizedInt" -> return $ AST.Neg arg1
328 otherwise -> error $ "\nGenerate.genNegation': Negation allowed for type: " ++ show name
330 -- | Generate a function call from the destination binder, function name and a
331 -- list of expressions (its arguments)
332 genFCall :: Bool -> BuiltinBuilder
333 genFCall switch = genNoInsts $ genExprArgs $ genExprRes (genFCall' switch)
334 genFCall' :: Bool -> Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
335 genFCall' switch (Left res) f args = do
336 let fname = varToString f
337 let el_ty = if switch then (Var.varType res) else ((tfvec_elem . Var.varType) res)
338 id <- MonadState.lift tsType $ vectorFunId el_ty fname
339 return $ AST.PrimFCall $ AST.FCall (AST.NSimple id) $
340 map (\exp -> Nothing AST.:=>: AST.ADExpr exp) args
341 genFCall' _ (Right name) _ _ = error $ "\nGenerate.genFCall': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
343 genFromSizedWord :: BuiltinBuilder
344 genFromSizedWord = genNoInsts $ genExprArgs $ genExprRes genFromSizedWord'
345 genFromSizedWord' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
346 genFromSizedWord' (Left res) f args = do
347 let fname = varToString f
348 return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId toIntegerId)) $
349 map (\exp -> Nothing AST.:=>: AST.ADExpr exp) args
350 genFromSizedWord' (Right name) _ _ = error $ "\nGenerate.genFromSizedWord': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
352 genResize :: BuiltinBuilder
353 genResize = genNoInsts $ genExprArgs $ genExprRes genResize'
354 genResize' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
355 genResize' (Left res) f [arg] = do {
356 ; let { ty = Var.varType res
357 ; (tycon, args) = Type.splitTyConApp ty
358 ; name = Name.getOccString (TyCon.tyConName tycon)
360 ; len <- case name of
361 "SizedInt" -> MonadState.lift tsType $ tfp_to_int (sized_int_len_ty ty)
362 "SizedWord" -> MonadState.lift tsType $ tfp_to_int (sized_word_len_ty ty)
363 ; return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId resizeId))
364 [Nothing AST.:=>: AST.ADExpr arg, Nothing AST.:=>: AST.ADExpr( AST.PrimLit (show len))]
366 genResize' (Right name) _ _ = error $ "\nGenerate.genFromSizedWord': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
368 -- FIXME: I'm calling genLitArgs which is very specific function,
369 -- which needs to be fixed as well
370 genFromInteger :: BuiltinBuilder
371 genFromInteger = genNoInsts $ genLitArgs $ genExprRes genFromInteger'
372 genFromInteger' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [Literal.Literal] -> TranslatorSession AST.Expr
373 genFromInteger' (Left res) f lits = do {
374 ; let { ty = Var.varType res
375 ; (tycon, args) = Type.splitTyConApp ty
376 ; name = Name.getOccString (TyCon.tyConName tycon)
379 "RangedWord" -> return $ AST.PrimLit (show (last lits))
381 ; len <- case name of
382 "SizedInt" -> MonadState.lift tsType $ tfp_to_int (sized_int_len_ty ty)
383 "SizedWord" -> MonadState.lift tsType $ tfp_to_int (sized_word_len_ty ty)
384 "RangedWord" -> MonadState.lift tsType $ tfp_to_int (ranged_word_bound_ty ty)
385 ; let fname = case name of "SizedInt" -> toSignedId ; "SizedWord" -> toUnsignedId
386 ; return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId fname))
387 [Nothing AST.:=>: AST.ADExpr (AST.PrimLit (show (last lits))), Nothing AST.:=>: AST.ADExpr( AST.PrimLit (show len))]
391 genFromInteger' (Right name) _ _ = error $ "\nGenerate.genFromInteger': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
393 genSizedInt :: BuiltinBuilder
394 genSizedInt = genFromInteger
397 -- | Generate a Builder for the builtin datacon TFVec
398 genTFVec :: BuiltinBuilder
399 genTFVec (Left res) f [Left (CoreSyn.Let (CoreSyn.Rec letBinders) letRes)] = do {
400 -- Generate Assignments for all the binders
401 ; letAssigns <- mapM genBinderAssign letBinders
402 -- Generate assignments for the result (which might be another let binding)
403 ; (resBinders,resAssignments) <- genResAssign letRes
404 -- Get all the Assigned binders
405 ; let assignedBinders = Maybe.catMaybes (map fst letAssigns)
406 -- Make signal names for all the assigned binders
407 ; sigs <- mapM (\x -> MonadState.lift tsType $ varToVHDLExpr x) (assignedBinders ++ resBinders)
408 -- Assign all the signals to the resulting vector
409 ; let { vecsigns = mkAggregateSignal sigs
410 ; vecassign = mkUncondAssign (Left res) vecsigns
412 -- Generate all the signal declaration for the assigned binders
413 ; sig_dec_maybes <- mapM mkSigDec (assignedBinders ++ resBinders)
414 ; let { sig_decs = map (AST.BDISD) (Maybe.catMaybes $ sig_dec_maybes)
415 -- Setup the VHDL Block
416 ; block_label = mkVHDLExtId ("TFVec_" ++ show (varToString res))
417 ; block = AST.BlockSm block_label [] (AST.PMapAspect []) sig_decs ((concat (map snd letAssigns)) ++ resAssignments ++ [vecassign])
419 -- Return the block statement coressponding to the TFVec literal
420 ; return $ [AST.CSBSm block]
423 genBinderAssign :: (CoreSyn.CoreBndr, CoreSyn.CoreExpr) -> TranslatorSession (Maybe CoreSyn.CoreBndr, [AST.ConcSm])
424 -- For now we only translate applications
425 genBinderAssign (bndr, app@(CoreSyn.App _ _)) = do
426 let (CoreSyn.Var f, args) = CoreSyn.collectArgs app
427 let valargs = get_val_args (Var.varType f) args
428 apps <- genApplication (Left bndr) f (map Left valargs)
429 return (Just bndr, apps)
430 genBinderAssign _ = return (Nothing,[])
431 genResAssign :: CoreSyn.CoreExpr -> TranslatorSession ([CoreSyn.CoreBndr], [AST.ConcSm])
432 genResAssign app@(CoreSyn.App _ letexpr) = do
434 (CoreSyn.Let (CoreSyn.Rec letbndrs) letres) -> do
435 letapps <- mapM genBinderAssign letbndrs
436 let bndrs = Maybe.catMaybes (map fst letapps)
437 let app = (map snd letapps)
438 (vars, apps) <- genResAssign letres
439 return ((bndrs ++ vars),((concat app) ++ apps))
440 otherwise -> return ([],[])
441 genResAssign _ = return ([],[])
443 genTFVec (Left res) f [Left app@(CoreSyn.App _ _)] = do {
444 ; let { elems = reduceCoreListToHsList app
445 -- Make signal names for all the binders
446 ; binders = map (\expr -> case expr of
448 otherwise -> error $ "\nGenerate.genTFVec: Cannot generate TFVec: "
449 ++ show res ++ ", with elems:\n" ++ show elems ++ "\n" ++ pprString elems) elems
451 ; sigs <- mapM (\x -> MonadState.lift tsType $ varToVHDLExpr x) binders
452 -- Assign all the signals to the resulting vector
453 ; let { vecsigns = mkAggregateSignal sigs
454 ; vecassign = mkUncondAssign (Left res) vecsigns
455 -- Setup the VHDL Block
456 ; block_label = mkVHDLExtId ("TFVec_" ++ show (varToString res))
457 ; block = AST.BlockSm block_label [] (AST.PMapAspect []) [] [vecassign]
459 -- Return the block statement coressponding to the TFVec literal
460 ; return $ [AST.CSBSm block]
463 genTFVec (Left name) _ [Left xs] = error $ "\nGenerate.genTFVec: Cannot generate TFVec: " ++ show name ++ ", with elems:\n" ++ show xs ++ "\n" ++ pprString xs
465 genTFVec (Right name) _ _ = error $ "\nGenerate.genTFVec: Cannot generate TFVec assigned to VHDLName: " ++ show name
467 -- | Generate a generate statement for the builtin function "map"
468 genMap :: BuiltinBuilder
469 genMap (Left res) f [Left mapped_f, Left (CoreSyn.Var arg)] = do {
470 -- mapped_f must be a CoreExpr (since we can't represent functions as VHDL
471 -- expressions). arg must be a CoreExpr (and should be a CoreSyn.Var), since
472 -- we must index it (which we couldn't if it was a VHDL Expr, since only
473 -- VHDLNames can be indexed).
474 -- Setup the generate scheme
475 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) res
476 -- TODO: Use something better than varToString
477 ; let { label = mkVHDLExtId ("mapVector" ++ (varToString res))
478 ; n_id = mkVHDLBasicId "n"
479 ; n_expr = idToVHDLExpr n_id
480 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
481 ; genScheme = AST.ForGn n_id range
482 -- Create the content of the generate statement: Applying the mapped_f to
483 -- each of the elements in arg, storing to each element in res
484 ; resname = mkIndexedName (varToVHDLName res) n_expr
485 ; argexpr = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg) n_expr
486 ; (CoreSyn.Var real_f, already_mapped_args) = CoreSyn.collectArgs mapped_f
487 ; valargs = get_val_args (Var.varType real_f) already_mapped_args
489 ; (app_concsms, used) <- genApplication (Right resname) real_f (map Left valargs ++ [Right argexpr])
490 -- Return the generate statement
491 ; return ([AST.CSGSm $ AST.GenerateSm label genScheme [] app_concsms], used)
494 genMap' (Right name) _ _ = error $ "\nGenerate.genMap': Cannot generate map function call assigned to a VHDLName: " ++ show name
496 genZipWith :: BuiltinBuilder
497 genZipWith = genVarArgs genZipWith'
498 genZipWith' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
499 genZipWith' (Left res) f args@[zipped_f, arg1, arg2] = do {
500 -- Setup the generate scheme
501 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) res
502 -- TODO: Use something better than varToString
503 ; let { label = mkVHDLExtId ("zipWithVector" ++ (varToString res))
504 ; n_id = mkVHDLBasicId "n"
505 ; n_expr = idToVHDLExpr n_id
506 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
507 ; genScheme = AST.ForGn n_id range
508 -- Create the content of the generate statement: Applying the zipped_f to
509 -- each of the elements in arg1 and arg2, storing to each element in res
510 ; resname = mkIndexedName (varToVHDLName res) n_expr
511 ; argexpr1 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg1) n_expr
512 ; argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg2) n_expr
514 ; (app_concsms, used) <- genApplication (Right resname) zipped_f [Right argexpr1, Right argexpr2]
515 -- Return the generate functions
516 ; return ([AST.CSGSm $ AST.GenerateSm label genScheme [] app_concsms], used)
519 genFoldl :: BuiltinBuilder
520 genFoldl = genFold True
522 genFoldr :: BuiltinBuilder
523 genFoldr = genFold False
525 genFold :: Bool -> BuiltinBuilder
526 genFold left = genVarArgs (genFold' left)
528 genFold' :: Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
529 genFold' left res f args@[folded_f , start ,vec]= do
530 len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty (Var.varType vec))
531 genFold'' len left res f args
533 genFold'' :: Int -> Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
534 -- Special case for an empty input vector, just assign start to res
535 genFold'' len left (Left res) _ [_, start, vec] | len == 0 = do
536 arg <- MonadState.lift tsType $ varToVHDLExpr start
537 return ([mkUncondAssign (Left res) arg], [])
539 genFold'' len left (Left res) f [folded_f, start, vec] = do
541 --len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) vec
542 -- An expression for len-1
543 let len_min_expr = (AST.PrimLit $ show (len-1))
544 -- evec is (TFVec n), so it still needs an element type
545 let (nvec, _) = Type.splitAppTy (Var.varType vec)
546 -- Put the type of the start value in nvec, this will be the type of our
548 let tmp_ty = Type.mkAppTy nvec (Var.varType start)
549 let error_msg = "\nGenerate.genFold': Can not construct temp vector for element type: " ++ pprString tmp_ty
550 -- TODO: Handle Nothing
551 Just tmp_vhdl_ty <- MonadState.lift tsType $ vhdl_ty error_msg tmp_ty
552 -- Setup the generate scheme
553 let gen_label = mkVHDLExtId ("foldlVector" ++ (varToString vec))
554 let block_label = mkVHDLExtId ("foldlVector" ++ (varToString res))
555 let gen_range = if left then AST.ToRange (AST.PrimLit "0") len_min_expr
556 else AST.DownRange len_min_expr (AST.PrimLit "0")
557 let gen_scheme = AST.ForGn n_id gen_range
558 -- Make the intermediate vector
559 let tmp_dec = AST.BDISD $ AST.SigDec tmp_id tmp_vhdl_ty Nothing
560 -- Create the generate statement
561 cells' <- sequence [genFirstCell, genOtherCell]
562 let (cells, useds) = unzip cells'
563 let gen_sm = AST.GenerateSm gen_label gen_scheme [] (map AST.CSGSm cells)
564 -- Assign tmp[len-1] or tmp[0] to res
565 let out_assign = mkUncondAssign (Left res) $ vhdlNameToVHDLExpr (if left then
566 (mkIndexedName tmp_name (AST.PrimLit $ show (len-1))) else
567 (mkIndexedName tmp_name (AST.PrimLit "0")))
568 let block = AST.BlockSm block_label [] (AST.PMapAspect []) [tmp_dec] [AST.CSGSm gen_sm, out_assign]
569 return ([AST.CSBSm block], concat useds)
571 -- An id for the counter
572 n_id = mkVHDLBasicId "n"
573 n_cur = idToVHDLExpr n_id
574 -- An expression for previous n
575 n_prev = if left then (n_cur AST.:-: (AST.PrimLit "1"))
576 else (n_cur AST.:+: (AST.PrimLit "1"))
577 -- An id for the tmp result vector
578 tmp_id = mkVHDLBasicId "tmp"
579 tmp_name = AST.NSimple tmp_id
580 -- Generate parts of the fold
581 genFirstCell, genOtherCell :: TranslatorSession (AST.GenerateSm, [CoreSyn.CoreBndr])
583 len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) vec
584 let cond_label = mkVHDLExtId "firstcell"
585 -- if n == 0 or n == len-1
586 let cond_scheme = AST.IfGn $ n_cur AST.:=: (if left then (AST.PrimLit "0")
587 else (AST.PrimLit $ show (len-1)))
588 -- Output to tmp[current n]
589 let resname = mkIndexedName tmp_name n_cur
591 argexpr1 <- MonadState.lift tsType $ varToVHDLExpr start
592 -- Input from vec[current n]
593 let argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName vec) n_cur
594 (app_concsms, used) <- genApplication (Right resname) folded_f ( if left then
595 [Right argexpr1, Right argexpr2]
597 [Right argexpr2, Right argexpr1]
599 -- Return the conditional generate part
600 return $ (AST.GenerateSm cond_label cond_scheme [] app_concsms, used)
603 len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) vec
604 let cond_label = mkVHDLExtId "othercell"
605 -- if n > 0 or n < len-1
606 let cond_scheme = AST.IfGn $ n_cur AST.:/=: (if left then (AST.PrimLit "0")
607 else (AST.PrimLit $ show (len-1)))
608 -- Output to tmp[current n]
609 let resname = mkIndexedName tmp_name n_cur
610 -- Input from tmp[previous n]
611 let argexpr1 = vhdlNameToVHDLExpr $ mkIndexedName tmp_name n_prev
612 -- Input from vec[current n]
613 let argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName vec) n_cur
614 (app_concsms, used) <- genApplication (Right resname) folded_f ( if left then
615 [Right argexpr1, Right argexpr2]
617 [Right argexpr2, Right argexpr1]
619 -- Return the conditional generate part
620 return $ (AST.GenerateSm cond_label cond_scheme [] app_concsms, used)
622 -- | Generate a generate statement for the builtin function "zip"
623 genZip :: BuiltinBuilder
624 genZip = genNoInsts $ genVarArgs genZip'
625 genZip' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
626 genZip' (Left res) f args@[arg1, arg2] = do {
627 -- Setup the generate scheme
628 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) res
629 -- TODO: Use something better than varToString
630 ; let { label = mkVHDLExtId ("zipVector" ++ (varToString res))
631 ; n_id = mkVHDLBasicId "n"
632 ; n_expr = idToVHDLExpr n_id
633 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
634 ; genScheme = AST.ForGn n_id range
635 ; resname' = mkIndexedName (varToVHDLName res) n_expr
636 ; argexpr1 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg1) n_expr
637 ; argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg2) n_expr
639 ; labels <- MonadState.lift tsType $ getFieldLabels (tfvec_elem (Var.varType res))
640 ; let { resnameA = mkSelectedName resname' (labels!!0)
641 ; resnameB = mkSelectedName resname' (labels!!1)
642 ; resA_assign = mkUncondAssign (Right resnameA) argexpr1
643 ; resB_assign = mkUncondAssign (Right resnameB) argexpr2
645 -- Return the generate functions
646 ; return [AST.CSGSm $ AST.GenerateSm label genScheme [] [resA_assign,resB_assign]]
649 -- | Generate a generate statement for the builtin function "fst"
650 genFst :: BuiltinBuilder
651 genFst = genNoInsts $ genVarArgs genFst'
652 genFst' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
653 genFst' (Left res) f args@[arg] = do {
654 ; labels <- MonadState.lift tsType $ getFieldLabels (Var.varType arg)
655 ; let { argexpr' = varToVHDLName arg
656 ; argexprA = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (labels!!0)
657 ; assign = mkUncondAssign (Left res) argexprA
659 -- Return the generate functions
663 -- | Generate a generate statement for the builtin function "snd"
664 genSnd :: BuiltinBuilder
665 genSnd = genNoInsts $ genVarArgs genSnd'
666 genSnd' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
667 genSnd' (Left res) f args@[arg] = do {
668 ; labels <- MonadState.lift tsType $ getFieldLabels (Var.varType arg)
669 ; let { argexpr' = varToVHDLName arg
670 ; argexprB = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (labels!!1)
671 ; assign = mkUncondAssign (Left res) argexprB
673 -- Return the generate functions
677 -- | Generate a generate statement for the builtin function "unzip"
678 genUnzip :: BuiltinBuilder
679 genUnzip = genNoInsts $ genVarArgs genUnzip'
680 genUnzip' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
681 genUnzip' (Left res) f args@[arg] = do {
682 -- Setup the generate scheme
683 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) arg
684 -- TODO: Use something better than varToString
685 ; let { label = mkVHDLExtId ("unzipVector" ++ (varToString res))
686 ; n_id = mkVHDLBasicId "n"
687 ; n_expr = idToVHDLExpr n_id
688 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
689 ; genScheme = AST.ForGn n_id range
690 ; resname' = varToVHDLName res
691 ; argexpr' = mkIndexedName (varToVHDLName arg) n_expr
693 ; reslabels <- MonadState.lift tsType $ getFieldLabels (Var.varType res)
694 ; arglabels <- MonadState.lift tsType $ getFieldLabels (tfvec_elem (Var.varType arg))
695 ; let { resnameA = mkIndexedName (mkSelectedName resname' (reslabels!!0)) n_expr
696 ; resnameB = mkIndexedName (mkSelectedName resname' (reslabels!!1)) n_expr
697 ; argexprA = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (arglabels!!0)
698 ; argexprB = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (arglabels!!1)
699 ; resA_assign = mkUncondAssign (Right resnameA) argexprA
700 ; resB_assign = mkUncondAssign (Right resnameB) argexprB
702 -- Return the generate functions
703 ; return [AST.CSGSm $ AST.GenerateSm label genScheme [] [resA_assign,resB_assign]]
706 genCopy :: BuiltinBuilder
707 genCopy = genNoInsts $ genVarArgs genCopy'
708 genCopy' :: (Either CoreSyn.CoreBndr AST.VHDLName ) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
709 genCopy' (Left res) f args@[arg] =
711 resExpr = AST.Aggregate [AST.ElemAssoc (Just AST.Others)
712 (AST.PrimName $ (varToVHDLName arg))]
713 out_assign = mkUncondAssign (Left res) resExpr
717 genConcat :: BuiltinBuilder
718 genConcat = genNoInsts $ genVarArgs genConcat'
719 genConcat' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
720 genConcat' (Left res) f args@[arg] = do {
721 -- Setup the generate scheme
722 ; len1 <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) arg
723 ; let (_, nvec) = Type.splitAppTy (Var.varType arg)
724 ; len2 <- MonadState.lift tsType $ tfp_to_int $ tfvec_len_ty nvec
725 -- TODO: Use something better than varToString
726 ; let { label = mkVHDLExtId ("concatVector" ++ (varToString res))
727 ; n_id = mkVHDLBasicId "n"
728 ; n_expr = idToVHDLExpr n_id
729 ; fromRange = n_expr AST.:*: (AST.PrimLit $ show len2)
730 ; genScheme = AST.ForGn n_id range
731 -- Create the content of the generate statement: Applying the mapped_f to
732 -- each of the elements in arg, storing to each element in res
733 ; toRange = (n_expr AST.:*: (AST.PrimLit $ show len2)) AST.:+: (AST.PrimLit $ show (len2-1))
734 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len1-1))
735 ; resname = vecSlice fromRange toRange
736 ; argexpr = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg) n_expr
737 ; out_assign = mkUncondAssign (Right resname) argexpr
739 -- Return the generate statement
740 ; return [AST.CSGSm $ AST.GenerateSm label genScheme [] [out_assign]]
743 vecSlice init last = AST.NSlice (AST.SliceName (varToVHDLName res)
744 (AST.ToRange init last))
746 genIteraten :: BuiltinBuilder
747 genIteraten dst f args = genIterate dst f (tail args)
749 genIterate :: BuiltinBuilder
750 genIterate = genIterateOrGenerate True
752 genGeneraten :: BuiltinBuilder
753 genGeneraten dst f args = genGenerate dst f (tail args)
755 genGenerate :: BuiltinBuilder
756 genGenerate = genIterateOrGenerate False
758 genIterateOrGenerate :: Bool -> BuiltinBuilder
759 genIterateOrGenerate iter = genVarArgs (genIterateOrGenerate' iter)
761 genIterateOrGenerate' :: Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
762 genIterateOrGenerate' iter (Left res) f args = do
763 len <- MonadState.lift tsType $ tfp_to_int ((tfvec_len_ty . Var.varType) res)
764 genIterateOrGenerate'' len iter (Left res) f args
766 genIterateOrGenerate'' :: Int -> Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
767 -- Special case for an empty input vector, just assign start to res
768 genIterateOrGenerate'' len iter (Left res) _ [app_f, start] | len == 0 = return ([mkUncondAssign (Left res) (AST.PrimLit "\"\"")], [])
770 genIterateOrGenerate'' len iter (Left res) f [app_f, start] = do
772 -- len <- MonadState.lift tsType $ tfp_to_int ((tfvec_len_ty . Var.varType) res)
773 -- An expression for len-1
774 let len_min_expr = (AST.PrimLit $ show (len-1))
775 -- -- evec is (TFVec n), so it still needs an element type
776 -- let (nvec, _) = splitAppTy (Var.varType vec)
777 -- -- Put the type of the start value in nvec, this will be the type of our
778 -- -- temporary vector
779 let tmp_ty = Var.varType res
780 let error_msg = "\nGenerate.genFold': Can not construct temp vector for element type: " ++ pprString tmp_ty
781 -- TODO: Handle Nothing
782 Just tmp_vhdl_ty <- MonadState.lift tsType $ vhdl_ty error_msg tmp_ty
783 -- Setup the generate scheme
784 let gen_label = mkVHDLExtId ("iterateVector" ++ (varToString start))
785 let block_label = mkVHDLExtId ("iterateVector" ++ (varToString res))
786 let gen_range = AST.ToRange (AST.PrimLit "0") len_min_expr
787 let gen_scheme = AST.ForGn n_id gen_range
788 -- Make the intermediate vector
789 let tmp_dec = AST.BDISD $ AST.SigDec tmp_id tmp_vhdl_ty Nothing
790 -- Create the generate statement
791 cells' <- sequence [genFirstCell, genOtherCell]
792 let (cells, useds) = unzip cells'
793 let gen_sm = AST.GenerateSm gen_label gen_scheme [] (map AST.CSGSm cells)
794 -- Assign tmp[len-1] or tmp[0] to res
795 let out_assign = mkUncondAssign (Left res) $ vhdlNameToVHDLExpr tmp_name
796 let block = AST.BlockSm block_label [] (AST.PMapAspect []) [tmp_dec] [AST.CSGSm gen_sm, out_assign]
797 return ([AST.CSBSm block], concat useds)
799 -- An id for the counter
800 n_id = mkVHDLBasicId "n"
801 n_cur = idToVHDLExpr n_id
802 -- An expression for previous n
803 n_prev = n_cur AST.:-: (AST.PrimLit "1")
804 -- An id for the tmp result vector
805 tmp_id = mkVHDLBasicId "tmp"
806 tmp_name = AST.NSimple tmp_id
807 -- Generate parts of the fold
808 genFirstCell, genOtherCell :: TranslatorSession (AST.GenerateSm, [CoreSyn.CoreBndr])
810 let cond_label = mkVHDLExtId "firstcell"
811 -- if n == 0 or n == len-1
812 let cond_scheme = AST.IfGn $ n_cur AST.:=: (AST.PrimLit "0")
813 -- Output to tmp[current n]
814 let resname = mkIndexedName tmp_name n_cur
816 argexpr <- MonadState.lift tsType $ varToVHDLExpr start
817 let startassign = mkUncondAssign (Right resname) argexpr
818 (app_concsms, used) <- genApplication (Right resname) app_f [Right argexpr]
819 -- Return the conditional generate part
820 let gensm = AST.GenerateSm cond_label cond_scheme [] (if iter then
828 let cond_label = mkVHDLExtId "othercell"
829 -- if n > 0 or n < len-1
830 let cond_scheme = AST.IfGn $ n_cur AST.:/=: (AST.PrimLit "0")
831 -- Output to tmp[current n]
832 let resname = mkIndexedName tmp_name n_cur
833 -- Input from tmp[previous n]
834 let argexpr = vhdlNameToVHDLExpr $ mkIndexedName tmp_name n_prev
835 (app_concsms, used) <- genApplication (Right resname) app_f [Right argexpr]
836 -- Return the conditional generate part
837 return $ (AST.GenerateSm cond_label cond_scheme [] app_concsms, used)
840 -----------------------------------------------------------------------------
841 -- Function to generate VHDL for applications
842 -----------------------------------------------------------------------------
844 (Either CoreSyn.CoreBndr AST.VHDLName) -- ^ Where to store the result?
845 -> CoreSyn.CoreBndr -- ^ The function to apply
846 -> [Either CoreSyn.CoreExpr AST.Expr] -- ^ The arguments to apply
847 -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
848 -- ^ The corresponding VHDL concurrent statements and entities
850 genApplication dst f args = do
851 case Var.isGlobalId f of
853 top <- isTopLevelBinder f
856 -- Local binder that references a top level binding. Generate a
857 -- component instantiation.
858 signature <- getEntity f
859 args' <- argsToVHDLExprs args
860 let entity_id = ent_id signature
861 -- TODO: Using show here isn't really pretty, but we'll need some
862 -- unique-ish value...
863 let label = "comp_ins_" ++ (either show prettyShow) dst
864 let portmaps = mkAssocElems args' ((either varToVHDLName id) dst) signature
865 return ([mkComponentInst label entity_id portmaps], [f])
867 -- Not a top level binder, so this must be a local variable reference.
868 -- It should have a representable type (and thus, no arguments) and a
869 -- signal should be generated for it. Just generate an unconditional
871 f' <- MonadState.lift tsType $ varToVHDLExpr f
872 return $ ([mkUncondAssign dst f'], [])
874 case Var.idDetails f of
875 IdInfo.DataConWorkId dc -> case dst of
876 -- It's a datacon. Create a record from its arguments.
878 -- We have the bndr, so we can get at the type
879 labels <- MonadState.lift tsType $ getFieldLabels (Var.varType bndr)
880 args' <- argsToVHDLExprs args
881 return $ (zipWith mkassign labels $ args', [])
883 mkassign :: AST.VHDLId -> AST.Expr -> AST.ConcSm
885 let sel_name = mkSelectedName ((either varToVHDLName id) dst) label in
886 mkUncondAssign (Right sel_name) arg
887 Right _ -> error $ "\nGenerate.genApplication: Can't generate dataconstructor application without an original binder"
888 IdInfo.DataConWrapId dc -> case dst of
889 -- It's a datacon. Create a record from its arguments.
891 case (Map.lookup (varToString f) globalNameTable) of
892 Just (arg_count, builder) ->
893 if length args == arg_count then
896 error $ "\nGenerate.genApplication(DataConWrapId): Incorrect number of arguments to builtin function: " ++ pprString f ++ " Args: " ++ show args
897 Nothing -> error $ "\nGenerate.genApplication: Can't generate dataconwrapper: " ++ (show dc)
898 Right _ -> error $ "\nGenerate.genApplication: Can't generate dataconwrapper application without an original binder"
899 IdInfo.VanillaId -> do
900 -- It's a global value imported from elsewhere. These can be builtin
901 -- functions. Look up the function name in the name table and execute
902 -- the associated builder if there is any and the argument count matches
903 -- (this should always be the case if it typechecks, but just to be
905 case (Map.lookup (varToString f) globalNameTable) of
906 Just (arg_count, builder) ->
907 if length args == arg_count then
910 error $ "\nGenerate.genApplication(VanillaId): Incorrect number of arguments to builtin function: " ++ pprString f ++ " Args: " ++ show args
912 top <- isTopLevelBinder f
915 -- Local binder that references a top level binding. Generate a
916 -- component instantiation.
917 signature <- getEntity f
918 args' <- argsToVHDLExprs args
919 let entity_id = ent_id signature
920 -- TODO: Using show here isn't really pretty, but we'll need some
921 -- unique-ish value...
922 let label = "comp_ins_" ++ (either show prettyShow) dst
923 let portmaps = mkAssocElems args' ((either varToVHDLName id) dst) signature
924 return ([mkComponentInst label entity_id portmaps], [f])
926 -- Not a top level binder, so this must be a local variable reference.
927 -- It should have a representable type (and thus, no arguments) and a
928 -- signal should be generated for it. Just generate an unconditional
930 -- FIXME : I DONT KNOW IF THE ABOVE COMMENT HOLDS HERE, SO FOR NOW JUST ERROR!
931 -- f' <- MonadState.lift tsType $ varToVHDLExpr f
932 -- return $ ([mkUncondAssign dst f'], [])
933 error $ ("\nGenerate.genApplication(VanillaId): Using function from another module that is not a known builtin: " ++ (pprString f))
934 IdInfo.ClassOpId cls -> do
935 -- FIXME: Not looking for what instance this class op is called for
936 -- Is quite stupid of course.
937 case (Map.lookup (varToString f) globalNameTable) of
938 Just (arg_count, builder) ->
939 if length args == arg_count then
942 error $ "\nGenerate.genApplication(ClassOpId): Incorrect number of arguments to builtin function: " ++ pprString f ++ " Args: " ++ show args
943 Nothing -> error $ "\nGenerate.genApplication(ClassOpId): Using function from another module that is not a known builtin: " ++ pprString f
944 details -> error $ "\nGenerate.genApplication: Calling unsupported function " ++ pprString f ++ " with GlobalIdDetails " ++ pprString details
946 -----------------------------------------------------------------------------
947 -- Functions to generate functions dealing with vectors.
948 -----------------------------------------------------------------------------
950 -- Returns the VHDLId of the vector function with the given name for the given
951 -- element type. Generates -- this function if needed.
952 vectorFunId :: Type.Type -> String -> TypeSession AST.VHDLId
953 vectorFunId el_ty fname = do
954 let error_msg = "\nGenerate.vectorFunId: Can not construct vector function for element: " ++ pprString el_ty
955 -- TODO: Handle the Nothing case?
956 Just elemTM <- vhdl_ty error_msg el_ty
957 -- TODO: This should not be duplicated from mk_vector_ty. Probably but it in
958 -- the VHDLState or something.
959 let vectorTM = mkVHDLExtId $ "vector_" ++ (AST.fromVHDLId elemTM)
960 typefuns <- getA tsTypeFuns
961 case Map.lookup (OrdType el_ty, fname) typefuns of
962 -- Function already generated, just return it
963 Just (id, _) -> return id
964 -- Function not generated yet, generate it
966 let functions = genUnconsVectorFuns elemTM vectorTM
967 case lookup fname functions of
969 modA tsTypeFuns $ Map.insert (OrdType el_ty, fname) (function_id, (fst body))
970 mapM_ (vectorFunId el_ty) (snd body)
972 Nothing -> error $ "\nGenerate.vectorFunId: I don't know how to generate vector function " ++ fname
974 function_id = mkVHDLExtId fname
976 genUnconsVectorFuns :: AST.TypeMark -- ^ type of the vector elements
977 -> AST.TypeMark -- ^ type of the vector
978 -> [(String, (AST.SubProgBody, [String]))]
979 genUnconsVectorFuns elemTM vectorTM =
980 [ (exId, (AST.SubProgBody exSpec [] [exExpr],[]))
981 , (replaceId, (AST.SubProgBody replaceSpec [AST.SPVD replaceVar] [replaceExpr,replaceRet],[]))
982 , (lastId, (AST.SubProgBody lastSpec [] [lastExpr],[]))
983 , (initId, (AST.SubProgBody initSpec [AST.SPVD initVar] [initExpr, initRet],[]))
984 , (minimumId, (AST.SubProgBody minimumSpec [] [minimumExpr],[]))
985 , (takeId, (AST.SubProgBody takeSpec [AST.SPVD takeVar] [takeExpr, takeRet],[minimumId]))
986 , (dropId, (AST.SubProgBody dropSpec [AST.SPVD dropVar] [dropExpr, dropRet],[]))
987 , (plusgtId, (AST.SubProgBody plusgtSpec [AST.SPVD plusgtVar] [plusgtExpr, plusgtRet],[]))
988 , (emptyId, (AST.SubProgBody emptySpec [AST.SPVD emptyVar] [emptyExpr],[]))
989 , (singletonId, (AST.SubProgBody singletonSpec [AST.SPVD singletonVar] [singletonRet],[]))
990 , (copynId, (AST.SubProgBody copynSpec [AST.SPVD copynVar] [copynExpr],[]))
991 , (selId, (AST.SubProgBody selSpec [AST.SPVD selVar] [selFor, selRet],[]))
992 , (ltplusId, (AST.SubProgBody ltplusSpec [AST.SPVD ltplusVar] [ltplusExpr, ltplusRet],[]))
993 , (plusplusId, (AST.SubProgBody plusplusSpec [AST.SPVD plusplusVar] [plusplusExpr, plusplusRet],[]))
994 , (lengthTId, (AST.SubProgBody lengthTSpec [] [lengthTExpr],[]))
995 , (shiftlId, (AST.SubProgBody shiftlSpec [AST.SPVD shiftlVar] [shiftlExpr, shiftlRet], [initId]))
996 , (shiftrId, (AST.SubProgBody shiftrSpec [AST.SPVD shiftrVar] [shiftrExpr, shiftrRet], [tailId]))
997 , (nullId, (AST.SubProgBody nullSpec [] [nullExpr], []))
998 , (rotlId, (AST.SubProgBody rotlSpec [AST.SPVD rotlVar] [rotlExpr, rotlRet], [nullId, lastId, initId]))
999 , (rotrId, (AST.SubProgBody rotrSpec [AST.SPVD rotrVar] [rotrExpr, rotrRet], [nullId, tailId, headId]))
1000 , (reverseId, (AST.SubProgBody reverseSpec [AST.SPVD reverseVar] [reverseFor, reverseRet], []))
1003 ixPar = AST.unsafeVHDLBasicId "ix"
1004 vecPar = AST.unsafeVHDLBasicId "vec"
1005 vec1Par = AST.unsafeVHDLBasicId "vec1"
1006 vec2Par = AST.unsafeVHDLBasicId "vec2"
1007 nPar = AST.unsafeVHDLBasicId "n"
1008 leftPar = AST.unsafeVHDLBasicId "nLeft"
1009 rightPar = AST.unsafeVHDLBasicId "nRight"
1010 iId = AST.unsafeVHDLBasicId "i"
1012 aPar = AST.unsafeVHDLBasicId "a"
1013 fPar = AST.unsafeVHDLBasicId "f"
1014 sPar = AST.unsafeVHDLBasicId "s"
1015 resId = AST.unsafeVHDLBasicId "res"
1016 exSpec = AST.Function (mkVHDLExtId exId) [AST.IfaceVarDec vecPar vectorTM,
1017 AST.IfaceVarDec ixPar naturalTM] elemTM
1018 exExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NIndexed
1019 (AST.IndexedName (AST.NSimple vecPar) [AST.PrimName $
1020 AST.NSimple ixPar]))
1021 replaceSpec = AST.Function (mkVHDLExtId replaceId) [ AST.IfaceVarDec vecPar vectorTM
1022 , AST.IfaceVarDec iPar naturalTM
1023 , AST.IfaceVarDec aPar elemTM
1025 -- variable res : fsvec_x (0 to vec'length-1);
1028 (AST.SubtypeIn vectorTM
1029 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1030 [AST.ToRange (AST.PrimLit "0")
1031 (AST.PrimName (AST.NAttribute $
1032 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1033 (AST.PrimLit "1")) ]))
1035 -- res AST.:= vec(0 to i-1) & a & vec(i+1 to length'vec-1)
1036 replaceExpr = AST.NSimple resId AST.:=
1037 (vecSlice (AST.PrimLit "0") (AST.PrimName (AST.NSimple iPar) AST.:-: AST.PrimLit "1") AST.:&:
1038 AST.PrimName (AST.NSimple aPar) AST.:&:
1039 vecSlice (AST.PrimName (AST.NSimple iPar) AST.:+: AST.PrimLit "1")
1040 ((AST.PrimName (AST.NAttribute $
1041 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))
1042 AST.:-: AST.PrimLit "1"))
1043 replaceRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1044 vecSlice init last = AST.PrimName (AST.NSlice
1046 (AST.NSimple vecPar)
1047 (AST.ToRange init last)))
1048 lastSpec = AST.Function (mkVHDLExtId lastId) [AST.IfaceVarDec vecPar vectorTM] elemTM
1049 -- return vec(vec'length-1);
1050 lastExpr = AST.ReturnSm (Just $ (AST.PrimName $ AST.NIndexed (AST.IndexedName
1051 (AST.NSimple vecPar)
1052 [AST.PrimName (AST.NAttribute $
1053 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing)
1054 AST.:-: AST.PrimLit "1"])))
1055 initSpec = AST.Function (mkVHDLExtId initId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1056 -- variable res : fsvec_x (0 to vec'length-2);
1059 (AST.SubtypeIn vectorTM
1060 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1061 [AST.ToRange (AST.PrimLit "0")
1062 (AST.PrimName (AST.NAttribute $
1063 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1064 (AST.PrimLit "2")) ]))
1066 -- resAST.:= vec(0 to vec'length-2)
1067 initExpr = AST.NSimple resId AST.:= (vecSlice
1069 (AST.PrimName (AST.NAttribute $
1070 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing)
1071 AST.:-: AST.PrimLit "2"))
1072 initRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1073 minimumSpec = AST.Function (mkVHDLExtId minimumId) [AST.IfaceVarDec leftPar naturalTM,
1074 AST.IfaceVarDec rightPar naturalTM ] naturalTM
1075 minimumExpr = AST.IfSm ((AST.PrimName $ AST.NSimple leftPar) AST.:<: (AST.PrimName $ AST.NSimple rightPar))
1076 [AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple leftPar)]
1078 (Just $ AST.Else [minimumExprRet])
1079 where minimumExprRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple rightPar)
1080 takeSpec = AST.Function (mkVHDLExtId takeId) [AST.IfaceVarDec nPar naturalTM,
1081 AST.IfaceVarDec vecPar vectorTM ] vectorTM
1082 -- variable res : fsvec_x (0 to (minimum (n,vec'length))-1);
1083 minLength = AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId minimumId))
1084 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple nPar)
1085 ,Nothing AST.:=>: AST.ADExpr (AST.PrimName (AST.NAttribute $
1086 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))]
1089 (AST.SubtypeIn vectorTM
1090 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1091 [AST.ToRange (AST.PrimLit "0")
1093 (AST.PrimLit "1")) ]))
1095 -- res AST.:= vec(0 to n-1)
1096 takeExpr = AST.NSimple resId AST.:=
1097 (vecSlice (AST.PrimLit "0")
1098 (minLength AST.:-: AST.PrimLit "1"))
1099 takeRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1100 dropSpec = AST.Function (mkVHDLExtId dropId) [AST.IfaceVarDec nPar naturalTM,
1101 AST.IfaceVarDec vecPar vectorTM ] vectorTM
1102 -- variable res : fsvec_x (0 to vec'length-n-1);
1105 (AST.SubtypeIn vectorTM
1106 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1107 [AST.ToRange (AST.PrimLit "0")
1108 (AST.PrimName (AST.NAttribute $
1109 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1110 (AST.PrimName $ AST.NSimple nPar)AST.:-: (AST.PrimLit "1")) ]))
1112 -- res AST.:= vec(n to vec'length-1)
1113 dropExpr = AST.NSimple resId AST.:= (vecSlice
1114 (AST.PrimName $ AST.NSimple nPar)
1115 (AST.PrimName (AST.NAttribute $
1116 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing)
1117 AST.:-: AST.PrimLit "1"))
1118 dropRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1119 plusgtSpec = AST.Function (mkVHDLExtId plusgtId) [AST.IfaceVarDec aPar elemTM,
1120 AST.IfaceVarDec vecPar vectorTM] vectorTM
1121 -- variable res : fsvec_x (0 to vec'length);
1124 (AST.SubtypeIn vectorTM
1125 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1126 [AST.ToRange (AST.PrimLit "0")
1127 (AST.PrimName (AST.NAttribute $
1128 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))]))
1130 plusgtExpr = AST.NSimple resId AST.:=
1131 ((AST.PrimName $ AST.NSimple aPar) AST.:&:
1132 (AST.PrimName $ AST.NSimple vecPar))
1133 plusgtRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1134 emptySpec = AST.Function (mkVHDLExtId emptyId) [] vectorTM
1137 (AST.SubtypeIn vectorTM
1138 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1139 [AST.ToRange (AST.PrimLit "0") (AST.PrimLit "-1")]))
1141 emptyExpr = AST.ReturnSm (Just $ AST.PrimName (AST.NSimple resId))
1142 singletonSpec = AST.Function (mkVHDLExtId singletonId) [AST.IfaceVarDec aPar elemTM ]
1144 -- variable res : fsvec_x (0 to 0) := (others => a);
1147 (AST.SubtypeIn vectorTM
1148 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1149 [AST.ToRange (AST.PrimLit "0") (AST.PrimLit "0")]))
1150 (Just $ AST.Aggregate [AST.ElemAssoc (Just AST.Others)
1151 (AST.PrimName $ AST.NSimple aPar)])
1152 singletonRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1153 copynSpec = AST.Function (mkVHDLExtId copynId) [AST.IfaceVarDec nPar naturalTM,
1154 AST.IfaceVarDec aPar elemTM ] vectorTM
1155 -- variable res : fsvec_x (0 to n-1) := (others => a);
1158 (AST.SubtypeIn vectorTM
1159 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1160 [AST.ToRange (AST.PrimLit "0")
1161 ((AST.PrimName (AST.NSimple nPar)) AST.:-:
1162 (AST.PrimLit "1")) ]))
1163 (Just $ AST.Aggregate [AST.ElemAssoc (Just AST.Others)
1164 (AST.PrimName $ AST.NSimple aPar)])
1166 copynExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1167 selSpec = AST.Function (mkVHDLExtId selId) [AST.IfaceVarDec fPar naturalTM,
1168 AST.IfaceVarDec sPar naturalTM,
1169 AST.IfaceVarDec nPar naturalTM,
1170 AST.IfaceVarDec vecPar vectorTM ] vectorTM
1171 -- variable res : fsvec_x (0 to n-1);
1174 (AST.SubtypeIn vectorTM
1175 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1176 [AST.ToRange (AST.PrimLit "0")
1177 ((AST.PrimName (AST.NSimple nPar)) AST.:-:
1178 (AST.PrimLit "1")) ])
1181 -- for i res'range loop
1182 -- res(i) := vec(f+i*s);
1184 selFor = AST.ForSM iId (AST.AttribRange $ AST.AttribName (AST.NSimple resId) (AST.NSimple $ rangeId) Nothing) [selAssign]
1185 -- res(i) := vec(f+i*s);
1186 selAssign = let origExp = AST.PrimName (AST.NSimple fPar) AST.:+:
1187 (AST.PrimName (AST.NSimple iId) AST.:*:
1188 AST.PrimName (AST.NSimple sPar)) in
1189 AST.NIndexed (AST.IndexedName (AST.NSimple resId) [AST.PrimName (AST.NSimple iId)]) AST.:=
1190 (AST.PrimName $ AST.NIndexed (AST.IndexedName (AST.NSimple vecPar) [origExp]))
1192 selRet = AST.ReturnSm (Just $ AST.PrimName (AST.NSimple resId))
1193 ltplusSpec = AST.Function (mkVHDLExtId ltplusId) [AST.IfaceVarDec vecPar vectorTM,
1194 AST.IfaceVarDec aPar elemTM] vectorTM
1195 -- variable res : fsvec_x (0 to vec'length);
1198 (AST.SubtypeIn vectorTM
1199 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1200 [AST.ToRange (AST.PrimLit "0")
1201 (AST.PrimName (AST.NAttribute $
1202 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))]))
1204 ltplusExpr = AST.NSimple resId AST.:=
1205 ((AST.PrimName $ AST.NSimple vecPar) AST.:&:
1206 (AST.PrimName $ AST.NSimple aPar))
1207 ltplusRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1208 plusplusSpec = AST.Function (mkVHDLExtId plusplusId) [AST.IfaceVarDec vec1Par vectorTM,
1209 AST.IfaceVarDec vec2Par vectorTM]
1211 -- variable res : fsvec_x (0 to vec1'length + vec2'length -1);
1214 (AST.SubtypeIn vectorTM
1215 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1216 [AST.ToRange (AST.PrimLit "0")
1217 (AST.PrimName (AST.NAttribute $
1218 AST.AttribName (AST.NSimple vec1Par) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:+:
1219 AST.PrimName (AST.NAttribute $
1220 AST.AttribName (AST.NSimple vec2Par) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1223 plusplusExpr = AST.NSimple resId AST.:=
1224 ((AST.PrimName $ AST.NSimple vec1Par) AST.:&:
1225 (AST.PrimName $ AST.NSimple vec2Par))
1226 plusplusRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1227 lengthTSpec = AST.Function (mkVHDLExtId lengthTId) [AST.IfaceVarDec vecPar vectorTM] naturalTM
1228 lengthTExpr = AST.ReturnSm (Just $ AST.PrimName (AST.NAttribute $
1229 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))
1230 shiftlSpec = AST.Function (mkVHDLExtId shiftlId) [AST.IfaceVarDec vecPar vectorTM,
1231 AST.IfaceVarDec aPar elemTM ] vectorTM
1232 -- variable res : fsvec_x (0 to vec'length-1);
1235 (AST.SubtypeIn vectorTM
1236 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1237 [AST.ToRange (AST.PrimLit "0")
1238 (AST.PrimName (AST.NAttribute $
1239 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1240 (AST.PrimLit "1")) ]))
1242 -- res := a & init(vec)
1243 shiftlExpr = AST.NSimple resId AST.:=
1244 (AST.PrimName (AST.NSimple aPar) AST.:&:
1245 (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId initId))
1246 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]))
1247 shiftlRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1248 shiftrSpec = AST.Function (mkVHDLExtId shiftrId) [AST.IfaceVarDec vecPar vectorTM,
1249 AST.IfaceVarDec aPar elemTM ] vectorTM
1250 -- variable res : fsvec_x (0 to vec'length-1);
1253 (AST.SubtypeIn vectorTM
1254 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1255 [AST.ToRange (AST.PrimLit "0")
1256 (AST.PrimName (AST.NAttribute $
1257 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1258 (AST.PrimLit "1")) ]))
1260 -- res := tail(vec) & a
1261 shiftrExpr = AST.NSimple resId AST.:=
1262 ((AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId tailId))
1263 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]) AST.:&:
1264 (AST.PrimName (AST.NSimple aPar)))
1266 shiftrRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1267 nullSpec = AST.Function (mkVHDLExtId nullId) [AST.IfaceVarDec vecPar vectorTM] booleanTM
1268 -- return vec'length = 0
1269 nullExpr = AST.ReturnSm (Just $
1270 AST.PrimName (AST.NAttribute $
1271 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:=:
1273 rotlSpec = AST.Function (mkVHDLExtId rotlId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1274 -- variable res : fsvec_x (0 to vec'length-1);
1277 (AST.SubtypeIn vectorTM
1278 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1279 [AST.ToRange (AST.PrimLit "0")
1280 (AST.PrimName (AST.NAttribute $
1281 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1282 (AST.PrimLit "1")) ]))
1284 -- if null(vec) then res := vec else res := last(vec) & init(vec)
1285 rotlExpr = AST.IfSm (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId nullId))
1286 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)])
1287 [AST.NSimple resId AST.:= (AST.PrimName $ AST.NSimple vecPar)]
1289 (Just $ AST.Else [rotlExprRet])
1291 AST.NSimple resId AST.:=
1292 ((AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId lastId))
1293 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]) AST.:&:
1294 (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId initId))
1295 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]))
1296 rotlRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1297 rotrSpec = AST.Function (mkVHDLExtId rotrId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1298 -- variable res : fsvec_x (0 to vec'length-1);
1301 (AST.SubtypeIn vectorTM
1302 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1303 [AST.ToRange (AST.PrimLit "0")
1304 (AST.PrimName (AST.NAttribute $
1305 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1306 (AST.PrimLit "1")) ]))
1308 -- if null(vec) then res := vec else res := tail(vec) & head(vec)
1309 rotrExpr = AST.IfSm (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId nullId))
1310 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)])
1311 [AST.NSimple resId AST.:= (AST.PrimName $ AST.NSimple vecPar)]
1313 (Just $ AST.Else [rotrExprRet])
1315 AST.NSimple resId AST.:=
1316 ((AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId tailId))
1317 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]) AST.:&:
1318 (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId headId))
1319 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]))
1320 rotrRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1321 reverseSpec = AST.Function (mkVHDLExtId reverseId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1324 (AST.SubtypeIn vectorTM
1325 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1326 [AST.ToRange (AST.PrimLit "0")
1327 (AST.PrimName (AST.NAttribute $
1328 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1329 (AST.PrimLit "1")) ]))
1331 -- for i in 0 to res'range loop
1332 -- res(vec'length-i-1) := vec(i);
1335 AST.ForSM iId (AST.AttribRange $ AST.AttribName (AST.NSimple resId) (AST.NSimple $ rangeId) Nothing) [reverseAssign]
1336 -- res(vec'length-i-1) := vec(i);
1337 reverseAssign = AST.NIndexed (AST.IndexedName (AST.NSimple resId) [destExp]) AST.:=
1338 (AST.PrimName $ AST.NIndexed (AST.IndexedName (AST.NSimple vecPar)
1339 [AST.PrimName $ AST.NSimple iId]))
1340 where destExp = AST.PrimName (AST.NAttribute $ AST.AttribName (AST.NSimple vecPar)
1341 (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1342 AST.PrimName (AST.NSimple iId) AST.:-:
1345 reverseRet = AST.ReturnSm (Just $ AST.PrimName (AST.NSimple resId))
1348 -----------------------------------------------------------------------------
1349 -- A table of builtin functions
1350 -----------------------------------------------------------------------------
1352 -- A function that generates VHDL for a builtin function
1353 type BuiltinBuilder =
1354 (Either CoreSyn.CoreBndr AST.VHDLName) -- ^ The destination signal and it's original type
1355 -> CoreSyn.CoreBndr -- ^ The function called
1356 -> [Either CoreSyn.CoreExpr AST.Expr] -- ^ The value arguments passed (excluding type and
1357 -- dictionary arguments).
1358 -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
1359 -- ^ The corresponding VHDL concurrent statements and entities
1362 -- A map of a builtin function to VHDL function builder
1363 type NameTable = Map.Map String (Int, BuiltinBuilder )
1365 -- | The builtin functions we support. Maps a name to an argument count and a
1366 -- builder function.
1367 globalNameTable :: NameTable
1368 globalNameTable = Map.fromList
1369 [ (exId , (2, genFCall True ) )
1370 , (replaceId , (3, genFCall False ) )
1371 , (headId , (1, genFCall True ) )
1372 , (lastId , (1, genFCall True ) )
1373 , (tailId , (1, genFCall False ) )
1374 , (initId , (1, genFCall False ) )
1375 , (takeId , (2, genFCall False ) )
1376 , (dropId , (2, genFCall False ) )
1377 , (selId , (4, genFCall False ) )
1378 , (plusgtId , (2, genFCall False ) )
1379 , (ltplusId , (2, genFCall False ) )
1380 , (plusplusId , (2, genFCall False ) )
1381 , (mapId , (2, genMap ) )
1382 , (zipWithId , (3, genZipWith ) )
1383 , (foldlId , (3, genFoldl ) )
1384 , (foldrId , (3, genFoldr ) )
1385 , (zipId , (2, genZip ) )
1386 , (unzipId , (1, genUnzip ) )
1387 , (shiftlId , (2, genFCall False ) )
1388 , (shiftrId , (2, genFCall False ) )
1389 , (rotlId , (1, genFCall False ) )
1390 , (rotrId , (1, genFCall False ) )
1391 , (concatId , (1, genConcat ) )
1392 , (reverseId , (1, genFCall False ) )
1393 , (iteratenId , (3, genIteraten ) )
1394 , (iterateId , (2, genIterate ) )
1395 , (generatenId , (3, genGeneraten ) )
1396 , (generateId , (2, genGenerate ) )
1397 , (emptyId , (0, genFCall False ) )
1398 , (singletonId , (1, genFCall False ) )
1399 , (copynId , (2, genFCall False ) )
1400 , (copyId , (1, genCopy ) )
1401 , (lengthTId , (1, genFCall False ) )
1402 , (nullId , (1, genFCall False ) )
1403 , (hwxorId , (2, genOperator2 AST.Xor ) )
1404 , (hwandId , (2, genOperator2 AST.And ) )
1405 , (hworId , (2, genOperator2 AST.Or ) )
1406 , (hwnotId , (1, genOperator1 AST.Not ) )
1407 , (equalityId , (2, genOperator2 (AST.:=:) ) )
1408 , (inEqualityId , (2, genOperator2 (AST.:/=:) ) )
1409 , (boolOrId , (2, genOperator2 AST.Or ) )
1410 , (boolAndId , (2, genOperator2 AST.And ) )
1411 , (plusId , (2, genOperator2 (AST.:+:) ) )
1412 , (timesId , (2, genOperator2 (AST.:*:) ) )
1413 , (negateId , (1, genNegation ) )
1414 , (minusId , (2, genOperator2 (AST.:-:) ) )
1415 , (fromSizedWordId , (1, genFromSizedWord ) )
1416 , (fromIntegerId , (1, genFromInteger ) )
1417 , (resizeId , (1, genResize ) )
1418 , (sizedIntId , (1, genSizedInt ) )
1419 , (smallIntegerId , (1, genFromInteger ) )
1420 , (fstId , (1, genFst ) )
1421 , (sndId , (1, genSnd ) )
1422 --, (tfvecId , (1, genTFVec ) )
1423 , (minimumId , (2, error $ "\nFunction name: \"minimum\" is used internally, use another name"))