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 count <- getA tsEntityCounter
56 let vhdl_id = mkVHDLBasicId $ varToString fname ++ "Component_" ++ show count
57 putA tsEntityCounter (count + 1)
58 let ent_decl = createEntityAST vhdl_id args' res'
59 let signature = Entity vhdl_id args' res' ent_decl
63 --[(SignalId, SignalInfo)]
65 -> TranslatorSession (Maybe Port)
68 --info = Maybe.fromMaybe
69 -- (error $ "Signal not found in the name map? This should not happen!")
71 -- Assume the bndr has a valid VHDL id already
74 error_msg = "\nVHDL.createEntity.mkMap: Can not create entity: " ++ pprString fname ++ "\nbecause no type can be created for port: " ++ pprString bndr
76 type_mark_maybe <- MonadState.lift tsType $ vhdl_ty error_msg ty
77 case type_mark_maybe of
78 Just type_mark -> return $ Just (id, type_mark)
79 Nothing -> return Nothing
82 -- | Create the VHDL AST for an entity
84 AST.VHDLId -- ^ The name of the function
85 -> [Port] -- ^ The entity's arguments
86 -> Maybe Port -- ^ The entity's result
87 -> AST.EntityDec -- ^ The entity with the ent_decl filled in as well
89 createEntityAST vhdl_id args res =
90 AST.EntityDec vhdl_id ports
92 -- Create a basic Id, since VHDL doesn't grok filenames with extended Ids.
93 ports = map (mkIfaceSigDec AST.In) args
94 ++ (Maybe.maybeToList res_port)
96 -- Add a clk port if we have state
97 clk_port = AST.IfaceSigDec clockId AST.In std_logicTM
98 res_port = fmap (mkIfaceSigDec AST.Out) res
100 -- | Create a port declaration
102 AST.Mode -- ^ The mode for the port (In / Out)
103 -> Port -- ^ The id and type for the port
104 -> AST.IfaceSigDec -- ^ The resulting port declaration
106 mkIfaceSigDec mode (id, ty) = AST.IfaceSigDec id mode ty
108 -- | Create an architecture for a given function
110 CoreSyn.CoreBndr -- ^ The function to get an architecture for
111 -> TranslatorSession (Architecture, [CoreSyn.CoreBndr])
112 -- ^ The architecture for this function
114 getArchitecture fname = Utils.makeCached fname tsArchitectures $ do
115 expr <- Normalize.getNormalized fname
116 signature <- getEntity fname
117 let entity_id = ent_id signature
118 -- Strip off lambda's, these will be arguments
119 let (args, letexpr) = CoreSyn.collectBinders expr
120 -- There must be a let at top level
121 let (CoreSyn.Let (CoreSyn.Rec binds) (CoreSyn.Var res)) = letexpr
123 -- Create signal declarations for all binders in the let expression, except
124 -- for the output port (that will already have an output port declared in
126 sig_dec_maybes <- mapM (mkSigDec . fst) (filter ((/=res).fst) binds)
127 let sig_decs = Maybe.catMaybes $ sig_dec_maybes
128 -- Process each bind, resulting in info about state variables and concurrent
130 (state_vars, sms) <- Monad.mapAndUnzipM dobind binds
131 let (in_state_maybes, out_state_maybes) = unzip state_vars
132 let (statementss, used_entitiess) = unzip sms
133 -- Create a state proc, if needed
134 let state_proc = case (Maybe.catMaybes in_state_maybes, Maybe.catMaybes out_state_maybes) of
135 ([in_state], [out_state]) -> [AST.CSPSm $ mkStateProcSm (in_state, out_state)]
137 (ins, outs) -> error $ "Weird use of state in " ++ show fname ++ ". In: " ++ show ins ++ " Out: " ++ show outs
138 -- Join the create statements and the (optional) state_proc
139 let statements = concat statementss ++ state_proc
140 -- Create the architecture
141 let arch = AST.ArchBody (mkVHDLBasicId "structural") (AST.NSimple entity_id) (map AST.BDISD sig_decs) statements
142 let used_entities = concat used_entitiess
143 return (arch, used_entities)
145 dobind :: (CoreSyn.CoreBndr, CoreSyn.CoreExpr) -- ^ The bind to process
146 -> TranslatorSession ((Maybe CoreSyn.CoreBndr, Maybe CoreSyn.CoreBndr), ([AST.ConcSm], [CoreSyn.CoreBndr]))
147 -- ^ ((Input state variable, output state variable), (statements, used entities))
148 -- newtype unpacking is just a cast
149 dobind (bndr, (CoreSyn.Cast expr coercion))
151 = return ((Just bndr, Nothing), ([], []))
152 -- With simplCore, newtype packing is just a cast
153 dobind (bndr, expr@(CoreSyn.Cast (CoreSyn.Var state) coercion))
155 = return ((Nothing, Just state), ([], []))
156 -- Without simplCore, newtype packing uses a data constructor
157 dobind (bndr, (CoreSyn.App (CoreSyn.App (CoreSyn.Var con) (CoreSyn.Type _)) (CoreSyn.Var state)))
159 = return ((Nothing, Just state), ([], []))
160 -- Anything else is handled by mkConcSm
163 return ((Nothing, Nothing), sms)
166 (CoreSyn.CoreBndr, CoreSyn.CoreBndr) -- ^ The current and new state variables
167 -> AST.ProcSm -- ^ The resulting statement
168 mkStateProcSm (old, new) =
169 AST.ProcSm label [clk] [statement]
171 label = mkVHDLBasicId $ "state"
172 clk = mkVHDLBasicId "clock"
173 rising_edge = AST.NSimple $ mkVHDLBasicId "rising_edge"
174 wform = AST.Wform [AST.WformElem (AST.PrimName $ varToVHDLName new) Nothing]
175 assign = AST.SigAssign (varToVHDLName old) wform
176 rising_edge_clk = AST.PrimFCall $ AST.FCall rising_edge [Nothing AST.:=>: (AST.ADName $ AST.NSimple clk)]
177 statement = AST.IfSm rising_edge_clk [assign] [] Nothing
180 -- | Transforms a core binding into a VHDL concurrent statement
182 (CoreSyn.CoreBndr, CoreSyn.CoreExpr) -- ^ The binding to process
183 -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
184 -- ^ The corresponding VHDL concurrent statements and entities
188 -- Ignore Cast expressions, they should not longer have any meaning as long as
189 -- the type works out.
190 mkConcSm (bndr, CoreSyn.Cast expr ty) = mkConcSm (bndr, expr)
192 -- Simple a = b assignments are just like applications, but without arguments.
193 -- We can't just generate an unconditional assignment here, since b might be a
194 -- top level binding (e.g., a function with no arguments).
195 mkConcSm (bndr, CoreSyn.Var v) = do
196 genApplication (Left bndr) v []
198 mkConcSm (bndr, app@(CoreSyn.App _ _))= do
199 let (CoreSyn.Var f, args) = CoreSyn.collectArgs app
200 let valargs = get_val_args (Var.varType f) args
201 genApplication (Left bndr) f (map Left valargs)
203 -- A single alt case must be a selector. This means thee scrutinee is a simple
204 -- variable, the alternative is a dataalt with a single non-wild binder that
206 mkConcSm (bndr, expr@(CoreSyn.Case (CoreSyn.Var scrut) b ty [alt]))
207 -- Don't generate VHDL for substate extraction
208 | hasStateType bndr = return ([], [])
211 (CoreSyn.DataAlt dc, bndrs, (CoreSyn.Var sel_bndr)) -> do
212 bndrs' <- Monad.filterM hasNonEmptyType bndrs
213 case List.elemIndex sel_bndr bndrs' of
215 labels <- MonadState.lift tsType $ getFieldLabels (Id.idType scrut)
216 let label = labels!!i
217 let sel_name = mkSelectedName (varToVHDLName scrut) label
218 let sel_expr = AST.PrimName sel_name
219 return ([mkUncondAssign (Left bndr) sel_expr], [])
220 Nothing -> error $ "\nVHDL.mkConcSM: Not in normal form: Not a selector case:\n" ++ (pprString expr)
222 _ -> error $ "\nVHDL.mkConcSM: Not in normal form: Not a selector case:\n" ++ (pprString expr)
224 -- Multiple case alt are be conditional assignments and have only wild
225 -- binders in the alts and only variables in the case values and a variable
226 -- for a scrutinee. We check the constructor of the second alt, since the
227 -- first is the default case, if there is any.
228 mkConcSm (bndr, (CoreSyn.Case (CoreSyn.Var scrut) b ty [(_, _, CoreSyn.Var false), (con, _, CoreSyn.Var true)])) = do
229 scrut' <- MonadState.lift tsType $ varToVHDLExpr scrut
230 let cond_expr = scrut' AST.:=: (altconToVHDLExpr con)
231 true_expr <- MonadState.lift tsType $ varToVHDLExpr true
232 false_expr <- MonadState.lift tsType $ varToVHDLExpr false
233 return ([mkCondAssign (Left bndr) cond_expr true_expr false_expr], [])
235 mkConcSm (_, (CoreSyn.Case (CoreSyn.Var _) _ _ alts)) = error "\nVHDL.mkConcSm: Not in normal form: Case statement with more than two alternatives"
236 mkConcSm (_, CoreSyn.Case _ _ _ _) = error "\nVHDL.mkConcSm: Not in normal form: Case statement has does not have a simple variable as scrutinee"
237 mkConcSm (bndr, expr) = error $ "\nVHDL.mkConcSM: Unsupported binding in let expression: " ++ pprString bndr ++ " = " ++ pprString expr
239 -----------------------------------------------------------------------------
240 -- Functions to generate VHDL for builtin functions
241 -----------------------------------------------------------------------------
243 -- | A function to wrap a builder-like function that expects its arguments to
245 genExprArgs wrap dst func args = do
246 args' <- argsToVHDLExprs args
249 -- | Turn the all lefts into VHDL Expressions.
250 argsToVHDLExprs :: [Either CoreSyn.CoreExpr AST.Expr] -> TranslatorSession [AST.Expr]
251 argsToVHDLExprs = catMaybesM . (mapM argToVHDLExpr)
253 argToVHDLExpr :: Either CoreSyn.CoreExpr AST.Expr -> TranslatorSession (Maybe AST.Expr)
254 argToVHDLExpr (Left expr) = MonadState.lift tsType $ do
255 let errmsg = "Generate.argToVHDLExpr: Using non-representable type? Should not happen!"
256 ty_maybe <- vhdl_ty errmsg expr
259 vhdl_expr <- varToVHDLExpr $ exprToVar expr
260 return $ Just vhdl_expr
261 Nothing -> return $ Nothing
263 argToVHDLExpr (Right expr) = return $ Just expr
265 -- A function to wrap a builder-like function that generates no component
268 (dst -> func -> args -> TranslatorSession [AST.ConcSm])
269 -> (dst -> func -> args -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr]))
270 genNoInsts wrap dst func args = do
271 concsms <- wrap dst func args
274 -- | A function to wrap a builder-like function that expects its arguments to
277 (dst -> func -> [Var.Var] -> res)
278 -> (dst -> func -> [Either CoreSyn.CoreExpr AST.Expr] -> res)
279 genVarArgs wrap dst func args = wrap dst func args'
281 args' = map exprToVar exprargs
282 -- Check (rather crudely) that all arguments are CoreExprs
283 (exprargs, []) = Either.partitionEithers args
285 -- | A function to wrap a builder-like function that expects its arguments to
288 (dst -> func -> [Literal.Literal] -> res)
289 -> (dst -> func -> [Either CoreSyn.CoreExpr AST.Expr] -> res)
290 genLitArgs wrap dst func args = wrap dst func args'
292 args' = map exprToLit litargs
293 -- FIXME: Check if we were passed an CoreSyn.App
294 litargs = concat (map getLiterals exprargs)
295 (exprargs, []) = Either.partitionEithers args
297 -- | A function to wrap a builder-like function that produces an expression
298 -- and expects it to be assigned to the destination.
300 ((Either CoreSyn.CoreBndr AST.VHDLName) -> func -> [arg] -> TranslatorSession AST.Expr)
301 -> ((Either CoreSyn.CoreBndr AST.VHDLName) -> func -> [arg] -> TranslatorSession [AST.ConcSm])
302 genExprRes wrap dst func args = do
303 expr <- wrap dst func args
304 return $ [mkUncondAssign dst expr]
306 -- | Generate a binary operator application. The first argument should be a
307 -- constructor from the AST.Expr type, e.g. AST.And.
308 genOperator2 :: (AST.Expr -> AST.Expr -> AST.Expr) -> BuiltinBuilder
309 genOperator2 op = genNoInsts $ genExprArgs $ genExprRes (genOperator2' op)
310 genOperator2' :: (AST.Expr -> AST.Expr -> AST.Expr) -> dst -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
311 genOperator2' op _ f [arg1, arg2] = return $ op arg1 arg2
313 -- | Generate a unary operator application
314 genOperator1 :: (AST.Expr -> AST.Expr) -> BuiltinBuilder
315 genOperator1 op = genNoInsts $ genExprArgs $ genExprRes (genOperator1' op)
316 genOperator1' :: (AST.Expr -> AST.Expr) -> dst -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
317 genOperator1' op _ f [arg] = return $ op arg
319 -- | Generate a unary operator application
320 genNegation :: BuiltinBuilder
321 genNegation = genNoInsts $ genVarArgs $ genExprRes genNegation'
322 genNegation' :: dst -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession AST.Expr
323 genNegation' _ f [arg] = do
324 arg1 <- MonadState.lift tsType $ varToVHDLExpr arg
325 let ty = Var.varType arg
326 let (tycon, args) = Type.splitTyConApp ty
327 let name = Name.getOccString (TyCon.tyConName tycon)
329 "SizedInt" -> return $ AST.Neg arg1
330 otherwise -> error $ "\nGenerate.genNegation': Negation allowed for type: " ++ show name
332 -- | Generate a function call from the destination binder, function name and a
333 -- list of expressions (its arguments)
334 genFCall :: Bool -> BuiltinBuilder
335 genFCall switch = genNoInsts $ genExprArgs $ genExprRes (genFCall' switch)
336 genFCall' :: Bool -> Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
337 genFCall' switch (Left res) f args = do
338 let fname = varToString f
339 let el_ty = if switch then (Var.varType res) else ((tfvec_elem . Var.varType) res)
340 id <- MonadState.lift tsType $ vectorFunId el_ty fname
341 return $ AST.PrimFCall $ AST.FCall (AST.NSimple id) $
342 map (\exp -> Nothing AST.:=>: AST.ADExpr exp) args
343 genFCall' _ (Right name) _ _ = error $ "\nGenerate.genFCall': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
345 genFromSizedWord :: BuiltinBuilder
346 genFromSizedWord = genNoInsts $ genExprArgs $ genExprRes genFromSizedWord'
347 genFromSizedWord' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
348 genFromSizedWord' (Left res) f args = do
349 let fname = varToString f
350 return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId toIntegerId)) $
351 map (\exp -> Nothing AST.:=>: AST.ADExpr exp) args
352 genFromSizedWord' (Right name) _ _ = error $ "\nGenerate.genFromSizedWord': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
354 genResize :: BuiltinBuilder
355 genResize = genNoInsts $ genExprArgs $ genExprRes genResize'
356 genResize' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
357 genResize' (Left res) f [arg] = do {
358 ; let { ty = Var.varType res
359 ; (tycon, args) = Type.splitTyConApp ty
360 ; name = Name.getOccString (TyCon.tyConName tycon)
362 ; len <- case name of
363 "SizedInt" -> MonadState.lift tsType $ tfp_to_int (sized_int_len_ty ty)
364 "SizedWord" -> MonadState.lift tsType $ tfp_to_int (sized_word_len_ty ty)
365 ; return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId resizeId))
366 [Nothing AST.:=>: AST.ADExpr arg, Nothing AST.:=>: AST.ADExpr( AST.PrimLit (show len))]
368 genResize' (Right name) _ _ = error $ "\nGenerate.genFromSizedWord': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
370 -- FIXME: I'm calling genLitArgs which is very specific function,
371 -- which needs to be fixed as well
372 genFromInteger :: BuiltinBuilder
373 genFromInteger = genNoInsts $ genLitArgs $ genExprRes genFromInteger'
374 genFromInteger' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [Literal.Literal] -> TranslatorSession AST.Expr
375 genFromInteger' (Left res) f lits = do {
376 ; let { ty = Var.varType res
377 ; (tycon, args) = Type.splitTyConApp ty
378 ; name = Name.getOccString (TyCon.tyConName tycon)
381 "RangedWord" -> return $ AST.PrimLit (show (last lits))
383 ; len <- case name of
384 "SizedInt" -> MonadState.lift tsType $ tfp_to_int (sized_int_len_ty ty)
385 "SizedWord" -> MonadState.lift tsType $ tfp_to_int (sized_word_len_ty ty)
386 "RangedWord" -> MonadState.lift tsType $ tfp_to_int (ranged_word_bound_ty ty)
387 ; let fname = case name of "SizedInt" -> toSignedId ; "SizedWord" -> toUnsignedId
388 ; return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId fname))
389 [Nothing AST.:=>: AST.ADExpr (AST.PrimLit (show (last lits))), Nothing AST.:=>: AST.ADExpr( AST.PrimLit (show len))]
393 genFromInteger' (Right name) _ _ = error $ "\nGenerate.genFromInteger': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
395 genSizedInt :: BuiltinBuilder
396 genSizedInt = genFromInteger
399 -- | Generate a Builder for the builtin datacon TFVec
400 genTFVec :: BuiltinBuilder
401 genTFVec (Left res) f [Left (CoreSyn.Let (CoreSyn.Rec letBinders) letRes)] = do {
402 -- Generate Assignments for all the binders
403 ; letAssigns <- mapM genBinderAssign letBinders
404 -- Generate assignments for the result (which might be another let binding)
405 ; (resBinders,resAssignments) <- genResAssign letRes
406 -- Get all the Assigned binders
407 ; let assignedBinders = Maybe.catMaybes (map fst letAssigns)
408 -- Make signal names for all the assigned binders
409 ; sigs <- mapM (\x -> MonadState.lift tsType $ varToVHDLExpr x) (assignedBinders ++ resBinders)
410 -- Assign all the signals to the resulting vector
411 ; let { vecsigns = mkAggregateSignal sigs
412 ; vecassign = mkUncondAssign (Left res) vecsigns
414 -- Generate all the signal declaration for the assigned binders
415 ; sig_dec_maybes <- mapM mkSigDec (assignedBinders ++ resBinders)
416 ; let { sig_decs = map (AST.BDISD) (Maybe.catMaybes $ sig_dec_maybes)
417 -- Setup the VHDL Block
418 ; block_label = mkVHDLExtId ("TFVec_" ++ show (varToString res))
419 ; block = AST.BlockSm block_label [] (AST.PMapAspect []) sig_decs ((concat (map snd letAssigns)) ++ resAssignments ++ [vecassign])
421 -- Return the block statement coressponding to the TFVec literal
422 ; return $ [AST.CSBSm block]
425 genBinderAssign :: (CoreSyn.CoreBndr, CoreSyn.CoreExpr) -> TranslatorSession (Maybe CoreSyn.CoreBndr, [AST.ConcSm])
426 -- For now we only translate applications
427 genBinderAssign (bndr, app@(CoreSyn.App _ _)) = do
428 let (CoreSyn.Var f, args) = CoreSyn.collectArgs app
429 let valargs = get_val_args (Var.varType f) args
430 apps <- genApplication (Left bndr) f (map Left valargs)
431 return (Just bndr, apps)
432 genBinderAssign _ = return (Nothing,[])
433 genResAssign :: CoreSyn.CoreExpr -> TranslatorSession ([CoreSyn.CoreBndr], [AST.ConcSm])
434 genResAssign app@(CoreSyn.App _ letexpr) = do
436 (CoreSyn.Let (CoreSyn.Rec letbndrs) letres) -> do
437 letapps <- mapM genBinderAssign letbndrs
438 let bndrs = Maybe.catMaybes (map fst letapps)
439 let app = (map snd letapps)
440 (vars, apps) <- genResAssign letres
441 return ((bndrs ++ vars),((concat app) ++ apps))
442 otherwise -> return ([],[])
443 genResAssign _ = return ([],[])
445 genTFVec (Left res) f [Left app@(CoreSyn.App _ _)] = do {
446 ; let { elems = reduceCoreListToHsList app
447 -- Make signal names for all the binders
448 ; binders = map (\expr -> case expr of
450 otherwise -> error $ "\nGenerate.genTFVec: Cannot generate TFVec: "
451 ++ show res ++ ", with elems:\n" ++ show elems ++ "\n" ++ pprString elems) elems
453 ; sigs <- mapM (\x -> MonadState.lift tsType $ varToVHDLExpr x) binders
454 -- Assign all the signals to the resulting vector
455 ; let { vecsigns = mkAggregateSignal sigs
456 ; vecassign = mkUncondAssign (Left res) vecsigns
457 -- Setup the VHDL Block
458 ; block_label = mkVHDLExtId ("TFVec_" ++ show (varToString res))
459 ; block = AST.BlockSm block_label [] (AST.PMapAspect []) [] [vecassign]
461 -- Return the block statement coressponding to the TFVec literal
462 ; return $ [AST.CSBSm block]
465 genTFVec (Left name) _ [Left xs] = error $ "\nGenerate.genTFVec: Cannot generate TFVec: " ++ show name ++ ", with elems:\n" ++ show xs ++ "\n" ++ pprString xs
467 genTFVec (Right name) _ _ = error $ "\nGenerate.genTFVec: Cannot generate TFVec assigned to VHDLName: " ++ show name
469 -- | Generate a generate statement for the builtin function "map"
470 genMap :: BuiltinBuilder
471 genMap (Left res) f [Left mapped_f, Left (CoreSyn.Var arg)] = do {
472 -- mapped_f must be a CoreExpr (since we can't represent functions as VHDL
473 -- expressions). arg must be a CoreExpr (and should be a CoreSyn.Var), since
474 -- we must index it (which we couldn't if it was a VHDL Expr, since only
475 -- VHDLNames can be indexed).
476 -- Setup the generate scheme
477 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) res
478 -- TODO: Use something better than varToString
479 ; let { label = mkVHDLExtId ("mapVector" ++ (varToString res))
480 ; n_id = mkVHDLBasicId "n"
481 ; n_expr = idToVHDLExpr n_id
482 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
483 ; genScheme = AST.ForGn n_id range
484 -- Create the content of the generate statement: Applying the mapped_f to
485 -- each of the elements in arg, storing to each element in res
486 ; resname = mkIndexedName (varToVHDLName res) n_expr
487 ; argexpr = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg) n_expr
488 ; (CoreSyn.Var real_f, already_mapped_args) = CoreSyn.collectArgs mapped_f
489 ; valargs = get_val_args (Var.varType real_f) already_mapped_args
491 ; (app_concsms, used) <- genApplication (Right resname) real_f (map Left valargs ++ [Right argexpr])
492 -- Return the generate statement
493 ; return ([AST.CSGSm $ AST.GenerateSm label genScheme [] app_concsms], used)
496 genMap' (Right name) _ _ = error $ "\nGenerate.genMap': Cannot generate map function call assigned to a VHDLName: " ++ show name
498 genZipWith :: BuiltinBuilder
499 genZipWith = genVarArgs genZipWith'
500 genZipWith' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
501 genZipWith' (Left res) f args@[zipped_f, arg1, arg2] = do {
502 -- Setup the generate scheme
503 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) res
504 -- TODO: Use something better than varToString
505 ; let { label = mkVHDLExtId ("zipWithVector" ++ (varToString res))
506 ; n_id = mkVHDLBasicId "n"
507 ; n_expr = idToVHDLExpr n_id
508 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
509 ; genScheme = AST.ForGn n_id range
510 -- Create the content of the generate statement: Applying the zipped_f to
511 -- each of the elements in arg1 and arg2, storing to each element in res
512 ; resname = mkIndexedName (varToVHDLName res) n_expr
513 ; argexpr1 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg1) n_expr
514 ; argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg2) n_expr
516 ; (app_concsms, used) <- genApplication (Right resname) zipped_f [Right argexpr1, Right argexpr2]
517 -- Return the generate functions
518 ; return ([AST.CSGSm $ AST.GenerateSm label genScheme [] app_concsms], used)
521 genFoldl :: BuiltinBuilder
522 genFoldl = genFold True
524 genFoldr :: BuiltinBuilder
525 genFoldr = genFold False
527 genFold :: Bool -> BuiltinBuilder
528 genFold left = genVarArgs (genFold' left)
530 genFold' :: Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
531 genFold' left res f args@[folded_f , start ,vec]= do
532 len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty (Var.varType vec))
533 genFold'' len left res f args
535 genFold'' :: Int -> Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
536 -- Special case for an empty input vector, just assign start to res
537 genFold'' len left (Left res) _ [_, start, vec] | len == 0 = do
538 arg <- MonadState.lift tsType $ varToVHDLExpr start
539 return ([mkUncondAssign (Left res) arg], [])
541 genFold'' len left (Left res) f [folded_f, start, vec] = do
543 --len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) vec
544 -- An expression for len-1
545 let len_min_expr = (AST.PrimLit $ show (len-1))
546 -- evec is (TFVec n), so it still needs an element type
547 let (nvec, _) = Type.splitAppTy (Var.varType vec)
548 -- Put the type of the start value in nvec, this will be the type of our
550 let tmp_ty = Type.mkAppTy nvec (Var.varType start)
551 let error_msg = "\nGenerate.genFold': Can not construct temp vector for element type: " ++ pprString tmp_ty
552 -- TODO: Handle Nothing
553 Just tmp_vhdl_ty <- MonadState.lift tsType $ vhdl_ty error_msg tmp_ty
554 -- Setup the generate scheme
555 let gen_label = mkVHDLExtId ("foldlVector" ++ (varToString vec))
556 let block_label = mkVHDLExtId ("foldlVector" ++ (varToString res))
557 let gen_range = if left then AST.ToRange (AST.PrimLit "0") len_min_expr
558 else AST.DownRange len_min_expr (AST.PrimLit "0")
559 let gen_scheme = AST.ForGn n_id gen_range
560 -- Make the intermediate vector
561 let tmp_dec = AST.BDISD $ AST.SigDec tmp_id tmp_vhdl_ty Nothing
562 -- Create the generate statement
563 cells' <- sequence [genFirstCell, genOtherCell]
564 let (cells, useds) = unzip cells'
565 let gen_sm = AST.GenerateSm gen_label gen_scheme [] (map AST.CSGSm cells)
566 -- Assign tmp[len-1] or tmp[0] to res
567 let out_assign = mkUncondAssign (Left res) $ vhdlNameToVHDLExpr (if left then
568 (mkIndexedName tmp_name (AST.PrimLit $ show (len-1))) else
569 (mkIndexedName tmp_name (AST.PrimLit "0")))
570 let block = AST.BlockSm block_label [] (AST.PMapAspect []) [tmp_dec] [AST.CSGSm gen_sm, out_assign]
571 return ([AST.CSBSm block], concat useds)
573 -- An id for the counter
574 n_id = mkVHDLBasicId "n"
575 n_cur = idToVHDLExpr n_id
576 -- An expression for previous n
577 n_prev = if left then (n_cur AST.:-: (AST.PrimLit "1"))
578 else (n_cur AST.:+: (AST.PrimLit "1"))
579 -- An id for the tmp result vector
580 tmp_id = mkVHDLBasicId "tmp"
581 tmp_name = AST.NSimple tmp_id
582 -- Generate parts of the fold
583 genFirstCell, genOtherCell :: TranslatorSession (AST.GenerateSm, [CoreSyn.CoreBndr])
585 len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) vec
586 let cond_label = mkVHDLExtId "firstcell"
587 -- if n == 0 or n == len-1
588 let cond_scheme = AST.IfGn $ n_cur AST.:=: (if left then (AST.PrimLit "0")
589 else (AST.PrimLit $ show (len-1)))
590 -- Output to tmp[current n]
591 let resname = mkIndexedName tmp_name n_cur
593 argexpr1 <- MonadState.lift tsType $ varToVHDLExpr start
594 -- Input from vec[current n]
595 let argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName vec) n_cur
596 (app_concsms, used) <- genApplication (Right resname) folded_f ( if left then
597 [Right argexpr1, Right argexpr2]
599 [Right argexpr2, Right argexpr1]
601 -- Return the conditional generate part
602 return $ (AST.GenerateSm cond_label cond_scheme [] app_concsms, used)
605 len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) vec
606 let cond_label = mkVHDLExtId "othercell"
607 -- if n > 0 or n < len-1
608 let cond_scheme = AST.IfGn $ n_cur AST.:/=: (if left then (AST.PrimLit "0")
609 else (AST.PrimLit $ show (len-1)))
610 -- Output to tmp[current n]
611 let resname = mkIndexedName tmp_name n_cur
612 -- Input from tmp[previous n]
613 let argexpr1 = vhdlNameToVHDLExpr $ mkIndexedName tmp_name n_prev
614 -- Input from vec[current n]
615 let argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName vec) n_cur
616 (app_concsms, used) <- genApplication (Right resname) folded_f ( if left then
617 [Right argexpr1, Right argexpr2]
619 [Right argexpr2, Right argexpr1]
621 -- Return the conditional generate part
622 return $ (AST.GenerateSm cond_label cond_scheme [] app_concsms, used)
624 -- | Generate a generate statement for the builtin function "zip"
625 genZip :: BuiltinBuilder
626 genZip = genNoInsts $ genVarArgs genZip'
627 genZip' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
628 genZip' (Left res) f args@[arg1, arg2] = do {
629 -- Setup the generate scheme
630 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) res
631 -- TODO: Use something better than varToString
632 ; let { label = mkVHDLExtId ("zipVector" ++ (varToString res))
633 ; n_id = mkVHDLBasicId "n"
634 ; n_expr = idToVHDLExpr n_id
635 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
636 ; genScheme = AST.ForGn n_id range
637 ; resname' = mkIndexedName (varToVHDLName res) n_expr
638 ; argexpr1 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg1) n_expr
639 ; argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg2) n_expr
641 ; labels <- MonadState.lift tsType $ getFieldLabels (tfvec_elem (Var.varType res))
642 ; let { resnameA = mkSelectedName resname' (labels!!0)
643 ; resnameB = mkSelectedName resname' (labels!!1)
644 ; resA_assign = mkUncondAssign (Right resnameA) argexpr1
645 ; resB_assign = mkUncondAssign (Right resnameB) argexpr2
647 -- Return the generate functions
648 ; return [AST.CSGSm $ AST.GenerateSm label genScheme [] [resA_assign,resB_assign]]
651 -- | Generate a generate statement for the builtin function "fst"
652 genFst :: BuiltinBuilder
653 genFst = genNoInsts $ genVarArgs genFst'
654 genFst' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
655 genFst' (Left res) f args@[arg] = do {
656 ; labels <- MonadState.lift tsType $ getFieldLabels (Var.varType arg)
657 ; let { argexpr' = varToVHDLName arg
658 ; argexprA = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (labels!!0)
659 ; assign = mkUncondAssign (Left res) argexprA
661 -- Return the generate functions
665 -- | Generate a generate statement for the builtin function "snd"
666 genSnd :: BuiltinBuilder
667 genSnd = genNoInsts $ genVarArgs genSnd'
668 genSnd' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
669 genSnd' (Left res) f args@[arg] = do {
670 ; labels <- MonadState.lift tsType $ getFieldLabels (Var.varType arg)
671 ; let { argexpr' = varToVHDLName arg
672 ; argexprB = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (labels!!1)
673 ; assign = mkUncondAssign (Left res) argexprB
675 -- Return the generate functions
679 -- | Generate a generate statement for the builtin function "unzip"
680 genUnzip :: BuiltinBuilder
681 genUnzip = genNoInsts $ genVarArgs genUnzip'
682 genUnzip' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
683 genUnzip' (Left res) f args@[arg] = do {
684 -- Setup the generate scheme
685 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) arg
686 -- TODO: Use something better than varToString
687 ; let { label = mkVHDLExtId ("unzipVector" ++ (varToString res))
688 ; n_id = mkVHDLBasicId "n"
689 ; n_expr = idToVHDLExpr n_id
690 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
691 ; genScheme = AST.ForGn n_id range
692 ; resname' = varToVHDLName res
693 ; argexpr' = mkIndexedName (varToVHDLName arg) n_expr
695 ; reslabels <- MonadState.lift tsType $ getFieldLabels (Var.varType res)
696 ; arglabels <- MonadState.lift tsType $ getFieldLabels (tfvec_elem (Var.varType arg))
697 ; let { resnameA = mkIndexedName (mkSelectedName resname' (reslabels!!0)) n_expr
698 ; resnameB = mkIndexedName (mkSelectedName resname' (reslabels!!1)) n_expr
699 ; argexprA = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (arglabels!!0)
700 ; argexprB = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (arglabels!!1)
701 ; resA_assign = mkUncondAssign (Right resnameA) argexprA
702 ; resB_assign = mkUncondAssign (Right resnameB) argexprB
704 -- Return the generate functions
705 ; return [AST.CSGSm $ AST.GenerateSm label genScheme [] [resA_assign,resB_assign]]
708 genCopy :: BuiltinBuilder
709 genCopy = genNoInsts $ genVarArgs genCopy'
710 genCopy' :: (Either CoreSyn.CoreBndr AST.VHDLName ) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
711 genCopy' (Left res) f args@[arg] =
713 resExpr = AST.Aggregate [AST.ElemAssoc (Just AST.Others)
714 (AST.PrimName $ (varToVHDLName arg))]
715 out_assign = mkUncondAssign (Left res) resExpr
719 genConcat :: BuiltinBuilder
720 genConcat = genNoInsts $ genVarArgs genConcat'
721 genConcat' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
722 genConcat' (Left res) f args@[arg] = do {
723 -- Setup the generate scheme
724 ; len1 <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) arg
725 ; let (_, nvec) = Type.splitAppTy (Var.varType arg)
726 ; len2 <- MonadState.lift tsType $ tfp_to_int $ tfvec_len_ty nvec
727 -- TODO: Use something better than varToString
728 ; let { label = mkVHDLExtId ("concatVector" ++ (varToString res))
729 ; n_id = mkVHDLBasicId "n"
730 ; n_expr = idToVHDLExpr n_id
731 ; fromRange = n_expr AST.:*: (AST.PrimLit $ show len2)
732 ; genScheme = AST.ForGn n_id range
733 -- Create the content of the generate statement: Applying the mapped_f to
734 -- each of the elements in arg, storing to each element in res
735 ; toRange = (n_expr AST.:*: (AST.PrimLit $ show len2)) AST.:+: (AST.PrimLit $ show (len2-1))
736 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len1-1))
737 ; resname = vecSlice fromRange toRange
738 ; argexpr = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg) n_expr
739 ; out_assign = mkUncondAssign (Right resname) argexpr
741 -- Return the generate statement
742 ; return [AST.CSGSm $ AST.GenerateSm label genScheme [] [out_assign]]
745 vecSlice init last = AST.NSlice (AST.SliceName (varToVHDLName res)
746 (AST.ToRange init last))
748 genIteraten :: BuiltinBuilder
749 genIteraten dst f args = genIterate dst f (tail args)
751 genIterate :: BuiltinBuilder
752 genIterate = genIterateOrGenerate True
754 genGeneraten :: BuiltinBuilder
755 genGeneraten dst f args = genGenerate dst f (tail args)
757 genGenerate :: BuiltinBuilder
758 genGenerate = genIterateOrGenerate False
760 genIterateOrGenerate :: Bool -> BuiltinBuilder
761 genIterateOrGenerate iter = genVarArgs (genIterateOrGenerate' iter)
763 genIterateOrGenerate' :: Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
764 genIterateOrGenerate' iter (Left res) f args = do
765 len <- MonadState.lift tsType $ tfp_to_int ((tfvec_len_ty . Var.varType) res)
766 genIterateOrGenerate'' len iter (Left res) f args
768 genIterateOrGenerate'' :: Int -> Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
769 -- Special case for an empty input vector, just assign start to res
770 genIterateOrGenerate'' len iter (Left res) _ [app_f, start] | len == 0 = return ([mkUncondAssign (Left res) (AST.PrimLit "\"\"")], [])
772 genIterateOrGenerate'' len iter (Left res) f [app_f, start] = do
774 -- len <- MonadState.lift tsType $ tfp_to_int ((tfvec_len_ty . Var.varType) res)
775 -- An expression for len-1
776 let len_min_expr = (AST.PrimLit $ show (len-1))
777 -- -- evec is (TFVec n), so it still needs an element type
778 -- let (nvec, _) = splitAppTy (Var.varType vec)
779 -- -- Put the type of the start value in nvec, this will be the type of our
780 -- -- temporary vector
781 let tmp_ty = Var.varType res
782 let error_msg = "\nGenerate.genFold': Can not construct temp vector for element type: " ++ pprString tmp_ty
783 -- TODO: Handle Nothing
784 Just tmp_vhdl_ty <- MonadState.lift tsType $ vhdl_ty error_msg tmp_ty
785 -- Setup the generate scheme
786 let gen_label = mkVHDLExtId ("iterateVector" ++ (varToString start))
787 let block_label = mkVHDLExtId ("iterateVector" ++ (varToString res))
788 let gen_range = AST.ToRange (AST.PrimLit "0") len_min_expr
789 let gen_scheme = AST.ForGn n_id gen_range
790 -- Make the intermediate vector
791 let tmp_dec = AST.BDISD $ AST.SigDec tmp_id tmp_vhdl_ty Nothing
792 -- Create the generate statement
793 cells' <- sequence [genFirstCell, genOtherCell]
794 let (cells, useds) = unzip cells'
795 let gen_sm = AST.GenerateSm gen_label gen_scheme [] (map AST.CSGSm cells)
796 -- Assign tmp[len-1] or tmp[0] to res
797 let out_assign = mkUncondAssign (Left res) $ vhdlNameToVHDLExpr tmp_name
798 let block = AST.BlockSm block_label [] (AST.PMapAspect []) [tmp_dec] [AST.CSGSm gen_sm, out_assign]
799 return ([AST.CSBSm block], concat useds)
801 -- An id for the counter
802 n_id = mkVHDLBasicId "n"
803 n_cur = idToVHDLExpr n_id
804 -- An expression for previous n
805 n_prev = n_cur AST.:-: (AST.PrimLit "1")
806 -- An id for the tmp result vector
807 tmp_id = mkVHDLBasicId "tmp"
808 tmp_name = AST.NSimple tmp_id
809 -- Generate parts of the fold
810 genFirstCell, genOtherCell :: TranslatorSession (AST.GenerateSm, [CoreSyn.CoreBndr])
812 let cond_label = mkVHDLExtId "firstcell"
813 -- if n == 0 or n == len-1
814 let cond_scheme = AST.IfGn $ n_cur AST.:=: (AST.PrimLit "0")
815 -- Output to tmp[current n]
816 let resname = mkIndexedName tmp_name n_cur
818 argexpr <- MonadState.lift tsType $ varToVHDLExpr start
819 let startassign = mkUncondAssign (Right resname) argexpr
820 (app_concsms, used) <- genApplication (Right resname) app_f [Right argexpr]
821 -- Return the conditional generate part
822 let gensm = AST.GenerateSm cond_label cond_scheme [] (if iter then
830 let cond_label = mkVHDLExtId "othercell"
831 -- if n > 0 or n < len-1
832 let cond_scheme = AST.IfGn $ n_cur AST.:/=: (AST.PrimLit "0")
833 -- Output to tmp[current n]
834 let resname = mkIndexedName tmp_name n_cur
835 -- Input from tmp[previous n]
836 let argexpr = vhdlNameToVHDLExpr $ mkIndexedName tmp_name n_prev
837 (app_concsms, used) <- genApplication (Right resname) app_f [Right argexpr]
838 -- Return the conditional generate part
839 return $ (AST.GenerateSm cond_label cond_scheme [] app_concsms, used)
842 -----------------------------------------------------------------------------
843 -- Function to generate VHDL for applications
844 -----------------------------------------------------------------------------
846 (Either CoreSyn.CoreBndr AST.VHDLName) -- ^ Where to store the result?
847 -> CoreSyn.CoreBndr -- ^ The function to apply
848 -> [Either CoreSyn.CoreExpr AST.Expr] -- ^ The arguments to apply
849 -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
850 -- ^ The corresponding VHDL concurrent statements and entities
852 genApplication dst f args = do
853 case Var.isGlobalId f of
855 top <- isTopLevelBinder f
858 -- Local binder that references a top level binding. Generate a
859 -- component instantiation.
860 signature <- getEntity f
861 args' <- argsToVHDLExprs args
862 let entity_id = ent_id signature
863 -- TODO: Using show here isn't really pretty, but we'll need some
864 -- unique-ish value...
865 let label = "comp_ins_" ++ (either show prettyShow) dst
866 let portmaps = mkAssocElems args' ((either varToVHDLName id) dst) signature
867 return ([mkComponentInst label entity_id portmaps], [f])
869 -- Not a top level binder, so this must be a local variable reference.
870 -- It should have a representable type (and thus, no arguments) and a
871 -- signal should be generated for it. Just generate an unconditional
873 f' <- MonadState.lift tsType $ varToVHDLExpr f
874 return $ ([mkUncondAssign dst f'], [])
876 case Var.idDetails f of
877 IdInfo.DataConWorkId dc -> case dst of
878 -- It's a datacon. Create a record from its arguments.
880 -- We have the bndr, so we can get at the type
881 labels <- MonadState.lift tsType $ getFieldLabels (Var.varType bndr)
882 args' <- argsToVHDLExprs args
883 return $ (zipWith mkassign labels $ args', [])
885 mkassign :: AST.VHDLId -> AST.Expr -> AST.ConcSm
887 let sel_name = mkSelectedName ((either varToVHDLName id) dst) label in
888 mkUncondAssign (Right sel_name) arg
889 Right _ -> error $ "\nGenerate.genApplication: Can't generate dataconstructor application without an original binder"
890 IdInfo.DataConWrapId dc -> case dst of
891 -- It's a datacon. Create a record from its arguments.
893 case (Map.lookup (varToString f) globalNameTable) of
894 Just (arg_count, builder) ->
895 if length args == arg_count then
898 error $ "\nGenerate.genApplication(DataConWrapId): Incorrect number of arguments to builtin function: " ++ pprString f ++ " Args: " ++ show args
899 Nothing -> error $ "\nGenerate.genApplication: Can't generate dataconwrapper: " ++ (show dc)
900 Right _ -> error $ "\nGenerate.genApplication: Can't generate dataconwrapper application without an original binder"
901 IdInfo.VanillaId -> do
902 -- It's a global value imported from elsewhere. These can be builtin
903 -- functions. Look up the function name in the name table and execute
904 -- the associated builder if there is any and the argument count matches
905 -- (this should always be the case if it typechecks, but just to be
907 case (Map.lookup (varToString f) globalNameTable) of
908 Just (arg_count, builder) ->
909 if length args == arg_count then
912 error $ "\nGenerate.genApplication(VanillaId): Incorrect number of arguments to builtin function: " ++ pprString f ++ " Args: " ++ show args
914 top <- isTopLevelBinder f
917 -- Local binder that references a top level binding. Generate a
918 -- component instantiation.
919 signature <- getEntity f
920 args' <- argsToVHDLExprs args
921 let entity_id = ent_id signature
922 -- TODO: Using show here isn't really pretty, but we'll need some
923 -- unique-ish value...
924 let label = "comp_ins_" ++ (either show prettyShow) dst
925 let portmaps = mkAssocElems args' ((either varToVHDLName id) dst) signature
926 return ([mkComponentInst label entity_id portmaps], [f])
928 -- Not a top level binder, so this must be a local variable reference.
929 -- It should have a representable type (and thus, no arguments) and a
930 -- signal should be generated for it. Just generate an unconditional
932 -- FIXME : I DONT KNOW IF THE ABOVE COMMENT HOLDS HERE, SO FOR NOW JUST ERROR!
933 -- f' <- MonadState.lift tsType $ varToVHDLExpr f
934 -- return $ ([mkUncondAssign dst f'], [])
935 error $ ("\nGenerate.genApplication(VanillaId): Using function from another module that is not a known builtin: " ++ (pprString f))
936 IdInfo.ClassOpId cls -> do
937 -- FIXME: Not looking for what instance this class op is called for
938 -- Is quite stupid of course.
939 case (Map.lookup (varToString f) globalNameTable) of
940 Just (arg_count, builder) ->
941 if length args == arg_count then
944 error $ "\nGenerate.genApplication(ClassOpId): Incorrect number of arguments to builtin function: " ++ pprString f ++ " Args: " ++ show args
945 Nothing -> error $ "\nGenerate.genApplication(ClassOpId): Using function from another module that is not a known builtin: " ++ pprString f
946 details -> error $ "\nGenerate.genApplication: Calling unsupported function " ++ pprString f ++ " with GlobalIdDetails " ++ pprString details
948 -----------------------------------------------------------------------------
949 -- Functions to generate functions dealing with vectors.
950 -----------------------------------------------------------------------------
952 -- Returns the VHDLId of the vector function with the given name for the given
953 -- element type. Generates -- this function if needed.
954 vectorFunId :: Type.Type -> String -> TypeSession AST.VHDLId
955 vectorFunId el_ty fname = do
956 let error_msg = "\nGenerate.vectorFunId: Can not construct vector function for element: " ++ pprString el_ty
957 -- TODO: Handle the Nothing case?
958 Just elemTM <- vhdl_ty error_msg el_ty
959 -- TODO: This should not be duplicated from mk_vector_ty. Probably but it in
960 -- the VHDLState or something.
961 let vectorTM = mkVHDLExtId $ "vector_" ++ (AST.fromVHDLId elemTM)
962 typefuns <- getA tsTypeFuns
963 case Map.lookup (OrdType el_ty, fname) typefuns of
964 -- Function already generated, just return it
965 Just (id, _) -> return id
966 -- Function not generated yet, generate it
968 let functions = genUnconsVectorFuns elemTM vectorTM
969 case lookup fname functions of
971 modA tsTypeFuns $ Map.insert (OrdType el_ty, fname) (function_id, (fst body))
972 mapM_ (vectorFunId el_ty) (snd body)
974 Nothing -> error $ "\nGenerate.vectorFunId: I don't know how to generate vector function " ++ fname
976 function_id = mkVHDLExtId fname
978 genUnconsVectorFuns :: AST.TypeMark -- ^ type of the vector elements
979 -> AST.TypeMark -- ^ type of the vector
980 -> [(String, (AST.SubProgBody, [String]))]
981 genUnconsVectorFuns elemTM vectorTM =
982 [ (exId, (AST.SubProgBody exSpec [] [exExpr],[]))
983 , (replaceId, (AST.SubProgBody replaceSpec [AST.SPVD replaceVar] [replaceExpr,replaceRet],[]))
984 , (lastId, (AST.SubProgBody lastSpec [] [lastExpr],[]))
985 , (initId, (AST.SubProgBody initSpec [AST.SPVD initVar] [initExpr, initRet],[]))
986 , (minimumId, (AST.SubProgBody minimumSpec [] [minimumExpr],[]))
987 , (takeId, (AST.SubProgBody takeSpec [AST.SPVD takeVar] [takeExpr, takeRet],[minimumId]))
988 , (dropId, (AST.SubProgBody dropSpec [AST.SPVD dropVar] [dropExpr, dropRet],[]))
989 , (plusgtId, (AST.SubProgBody plusgtSpec [AST.SPVD plusgtVar] [plusgtExpr, plusgtRet],[]))
990 , (emptyId, (AST.SubProgBody emptySpec [AST.SPVD emptyVar] [emptyExpr],[]))
991 , (singletonId, (AST.SubProgBody singletonSpec [AST.SPVD singletonVar] [singletonRet],[]))
992 , (copynId, (AST.SubProgBody copynSpec [AST.SPVD copynVar] [copynExpr],[]))
993 , (selId, (AST.SubProgBody selSpec [AST.SPVD selVar] [selFor, selRet],[]))
994 , (ltplusId, (AST.SubProgBody ltplusSpec [AST.SPVD ltplusVar] [ltplusExpr, ltplusRet],[]))
995 , (plusplusId, (AST.SubProgBody plusplusSpec [AST.SPVD plusplusVar] [plusplusExpr, plusplusRet],[]))
996 , (lengthTId, (AST.SubProgBody lengthTSpec [] [lengthTExpr],[]))
997 , (shiftlId, (AST.SubProgBody shiftlSpec [AST.SPVD shiftlVar] [shiftlExpr, shiftlRet], [initId]))
998 , (shiftrId, (AST.SubProgBody shiftrSpec [AST.SPVD shiftrVar] [shiftrExpr, shiftrRet], [tailId]))
999 , (nullId, (AST.SubProgBody nullSpec [] [nullExpr], []))
1000 , (rotlId, (AST.SubProgBody rotlSpec [AST.SPVD rotlVar] [rotlExpr, rotlRet], [nullId, lastId, initId]))
1001 , (rotrId, (AST.SubProgBody rotrSpec [AST.SPVD rotrVar] [rotrExpr, rotrRet], [nullId, tailId, headId]))
1002 , (reverseId, (AST.SubProgBody reverseSpec [AST.SPVD reverseVar] [reverseFor, reverseRet], []))
1005 ixPar = AST.unsafeVHDLBasicId "ix"
1006 vecPar = AST.unsafeVHDLBasicId "vec"
1007 vec1Par = AST.unsafeVHDLBasicId "vec1"
1008 vec2Par = AST.unsafeVHDLBasicId "vec2"
1009 nPar = AST.unsafeVHDLBasicId "n"
1010 leftPar = AST.unsafeVHDLBasicId "nLeft"
1011 rightPar = AST.unsafeVHDLBasicId "nRight"
1012 iId = AST.unsafeVHDLBasicId "i"
1014 aPar = AST.unsafeVHDLBasicId "a"
1015 fPar = AST.unsafeVHDLBasicId "f"
1016 sPar = AST.unsafeVHDLBasicId "s"
1017 resId = AST.unsafeVHDLBasicId "res"
1018 exSpec = AST.Function (mkVHDLExtId exId) [AST.IfaceVarDec vecPar vectorTM,
1019 AST.IfaceVarDec ixPar naturalTM] elemTM
1020 exExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NIndexed
1021 (AST.IndexedName (AST.NSimple vecPar) [AST.PrimName $
1022 AST.NSimple ixPar]))
1023 replaceSpec = AST.Function (mkVHDLExtId replaceId) [ AST.IfaceVarDec vecPar vectorTM
1024 , AST.IfaceVarDec iPar naturalTM
1025 , AST.IfaceVarDec aPar elemTM
1027 -- variable res : fsvec_x (0 to vec'length-1);
1030 (AST.SubtypeIn vectorTM
1031 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1032 [AST.ToRange (AST.PrimLit "0")
1033 (AST.PrimName (AST.NAttribute $
1034 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1035 (AST.PrimLit "1")) ]))
1037 -- res AST.:= vec(0 to i-1) & a & vec(i+1 to length'vec-1)
1038 replaceExpr = AST.NSimple resId AST.:=
1039 (vecSlice (AST.PrimLit "0") (AST.PrimName (AST.NSimple iPar) AST.:-: AST.PrimLit "1") AST.:&:
1040 AST.PrimName (AST.NSimple aPar) AST.:&:
1041 vecSlice (AST.PrimName (AST.NSimple iPar) AST.:+: AST.PrimLit "1")
1042 ((AST.PrimName (AST.NAttribute $
1043 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))
1044 AST.:-: AST.PrimLit "1"))
1045 replaceRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1046 vecSlice init last = AST.PrimName (AST.NSlice
1048 (AST.NSimple vecPar)
1049 (AST.ToRange init last)))
1050 lastSpec = AST.Function (mkVHDLExtId lastId) [AST.IfaceVarDec vecPar vectorTM] elemTM
1051 -- return vec(vec'length-1);
1052 lastExpr = AST.ReturnSm (Just $ (AST.PrimName $ AST.NIndexed (AST.IndexedName
1053 (AST.NSimple vecPar)
1054 [AST.PrimName (AST.NAttribute $
1055 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing)
1056 AST.:-: AST.PrimLit "1"])))
1057 initSpec = AST.Function (mkVHDLExtId initId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1058 -- variable res : fsvec_x (0 to vec'length-2);
1061 (AST.SubtypeIn vectorTM
1062 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1063 [AST.ToRange (AST.PrimLit "0")
1064 (AST.PrimName (AST.NAttribute $
1065 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1066 (AST.PrimLit "2")) ]))
1068 -- resAST.:= vec(0 to vec'length-2)
1069 initExpr = AST.NSimple resId AST.:= (vecSlice
1071 (AST.PrimName (AST.NAttribute $
1072 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing)
1073 AST.:-: AST.PrimLit "2"))
1074 initRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1075 minimumSpec = AST.Function (mkVHDLExtId minimumId) [AST.IfaceVarDec leftPar naturalTM,
1076 AST.IfaceVarDec rightPar naturalTM ] naturalTM
1077 minimumExpr = AST.IfSm ((AST.PrimName $ AST.NSimple leftPar) AST.:<: (AST.PrimName $ AST.NSimple rightPar))
1078 [AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple leftPar)]
1080 (Just $ AST.Else [minimumExprRet])
1081 where minimumExprRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple rightPar)
1082 takeSpec = AST.Function (mkVHDLExtId takeId) [AST.IfaceVarDec nPar naturalTM,
1083 AST.IfaceVarDec vecPar vectorTM ] vectorTM
1084 -- variable res : fsvec_x (0 to (minimum (n,vec'length))-1);
1085 minLength = AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId minimumId))
1086 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple nPar)
1087 ,Nothing AST.:=>: AST.ADExpr (AST.PrimName (AST.NAttribute $
1088 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))]
1091 (AST.SubtypeIn vectorTM
1092 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1093 [AST.ToRange (AST.PrimLit "0")
1095 (AST.PrimLit "1")) ]))
1097 -- res AST.:= vec(0 to n-1)
1098 takeExpr = AST.NSimple resId AST.:=
1099 (vecSlice (AST.PrimLit "0")
1100 (minLength AST.:-: AST.PrimLit "1"))
1101 takeRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1102 dropSpec = AST.Function (mkVHDLExtId dropId) [AST.IfaceVarDec nPar naturalTM,
1103 AST.IfaceVarDec vecPar vectorTM ] vectorTM
1104 -- variable res : fsvec_x (0 to vec'length-n-1);
1107 (AST.SubtypeIn vectorTM
1108 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1109 [AST.ToRange (AST.PrimLit "0")
1110 (AST.PrimName (AST.NAttribute $
1111 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1112 (AST.PrimName $ AST.NSimple nPar)AST.:-: (AST.PrimLit "1")) ]))
1114 -- res AST.:= vec(n to vec'length-1)
1115 dropExpr = AST.NSimple resId AST.:= (vecSlice
1116 (AST.PrimName $ AST.NSimple nPar)
1117 (AST.PrimName (AST.NAttribute $
1118 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing)
1119 AST.:-: AST.PrimLit "1"))
1120 dropRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1121 plusgtSpec = AST.Function (mkVHDLExtId plusgtId) [AST.IfaceVarDec aPar elemTM,
1122 AST.IfaceVarDec vecPar vectorTM] vectorTM
1123 -- variable res : fsvec_x (0 to vec'length);
1126 (AST.SubtypeIn vectorTM
1127 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1128 [AST.ToRange (AST.PrimLit "0")
1129 (AST.PrimName (AST.NAttribute $
1130 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))]))
1132 plusgtExpr = AST.NSimple resId AST.:=
1133 ((AST.PrimName $ AST.NSimple aPar) AST.:&:
1134 (AST.PrimName $ AST.NSimple vecPar))
1135 plusgtRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1136 emptySpec = AST.Function (mkVHDLExtId emptyId) [] vectorTM
1139 (AST.SubtypeIn vectorTM
1140 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1141 [AST.ToRange (AST.PrimLit "0") (AST.PrimLit "-1")]))
1143 emptyExpr = AST.ReturnSm (Just $ AST.PrimName (AST.NSimple resId))
1144 singletonSpec = AST.Function (mkVHDLExtId singletonId) [AST.IfaceVarDec aPar elemTM ]
1146 -- variable res : fsvec_x (0 to 0) := (others => a);
1149 (AST.SubtypeIn vectorTM
1150 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1151 [AST.ToRange (AST.PrimLit "0") (AST.PrimLit "0")]))
1152 (Just $ AST.Aggregate [AST.ElemAssoc (Just AST.Others)
1153 (AST.PrimName $ AST.NSimple aPar)])
1154 singletonRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1155 copynSpec = AST.Function (mkVHDLExtId copynId) [AST.IfaceVarDec nPar naturalTM,
1156 AST.IfaceVarDec aPar elemTM ] vectorTM
1157 -- variable res : fsvec_x (0 to n-1) := (others => a);
1160 (AST.SubtypeIn vectorTM
1161 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1162 [AST.ToRange (AST.PrimLit "0")
1163 ((AST.PrimName (AST.NSimple nPar)) AST.:-:
1164 (AST.PrimLit "1")) ]))
1165 (Just $ AST.Aggregate [AST.ElemAssoc (Just AST.Others)
1166 (AST.PrimName $ AST.NSimple aPar)])
1168 copynExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1169 selSpec = AST.Function (mkVHDLExtId selId) [AST.IfaceVarDec fPar naturalTM,
1170 AST.IfaceVarDec sPar naturalTM,
1171 AST.IfaceVarDec nPar naturalTM,
1172 AST.IfaceVarDec vecPar vectorTM ] vectorTM
1173 -- variable res : fsvec_x (0 to n-1);
1176 (AST.SubtypeIn vectorTM
1177 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1178 [AST.ToRange (AST.PrimLit "0")
1179 ((AST.PrimName (AST.NSimple nPar)) AST.:-:
1180 (AST.PrimLit "1")) ])
1183 -- for i res'range loop
1184 -- res(i) := vec(f+i*s);
1186 selFor = AST.ForSM iId (AST.AttribRange $ AST.AttribName (AST.NSimple resId) (AST.NSimple $ rangeId) Nothing) [selAssign]
1187 -- res(i) := vec(f+i*s);
1188 selAssign = let origExp = AST.PrimName (AST.NSimple fPar) AST.:+:
1189 (AST.PrimName (AST.NSimple iId) AST.:*:
1190 AST.PrimName (AST.NSimple sPar)) in
1191 AST.NIndexed (AST.IndexedName (AST.NSimple resId) [AST.PrimName (AST.NSimple iId)]) AST.:=
1192 (AST.PrimName $ AST.NIndexed (AST.IndexedName (AST.NSimple vecPar) [origExp]))
1194 selRet = AST.ReturnSm (Just $ AST.PrimName (AST.NSimple resId))
1195 ltplusSpec = AST.Function (mkVHDLExtId ltplusId) [AST.IfaceVarDec vecPar vectorTM,
1196 AST.IfaceVarDec aPar elemTM] vectorTM
1197 -- variable res : fsvec_x (0 to vec'length);
1200 (AST.SubtypeIn vectorTM
1201 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1202 [AST.ToRange (AST.PrimLit "0")
1203 (AST.PrimName (AST.NAttribute $
1204 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))]))
1206 ltplusExpr = AST.NSimple resId AST.:=
1207 ((AST.PrimName $ AST.NSimple vecPar) AST.:&:
1208 (AST.PrimName $ AST.NSimple aPar))
1209 ltplusRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1210 plusplusSpec = AST.Function (mkVHDLExtId plusplusId) [AST.IfaceVarDec vec1Par vectorTM,
1211 AST.IfaceVarDec vec2Par vectorTM]
1213 -- variable res : fsvec_x (0 to vec1'length + vec2'length -1);
1216 (AST.SubtypeIn vectorTM
1217 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1218 [AST.ToRange (AST.PrimLit "0")
1219 (AST.PrimName (AST.NAttribute $
1220 AST.AttribName (AST.NSimple vec1Par) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:+:
1221 AST.PrimName (AST.NAttribute $
1222 AST.AttribName (AST.NSimple vec2Par) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1225 plusplusExpr = AST.NSimple resId AST.:=
1226 ((AST.PrimName $ AST.NSimple vec1Par) AST.:&:
1227 (AST.PrimName $ AST.NSimple vec2Par))
1228 plusplusRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1229 lengthTSpec = AST.Function (mkVHDLExtId lengthTId) [AST.IfaceVarDec vecPar vectorTM] naturalTM
1230 lengthTExpr = AST.ReturnSm (Just $ AST.PrimName (AST.NAttribute $
1231 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))
1232 shiftlSpec = AST.Function (mkVHDLExtId shiftlId) [AST.IfaceVarDec vecPar vectorTM,
1233 AST.IfaceVarDec aPar elemTM ] vectorTM
1234 -- variable res : fsvec_x (0 to vec'length-1);
1237 (AST.SubtypeIn vectorTM
1238 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1239 [AST.ToRange (AST.PrimLit "0")
1240 (AST.PrimName (AST.NAttribute $
1241 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1242 (AST.PrimLit "1")) ]))
1244 -- res := a & init(vec)
1245 shiftlExpr = AST.NSimple resId AST.:=
1246 (AST.PrimName (AST.NSimple aPar) AST.:&:
1247 (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId initId))
1248 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]))
1249 shiftlRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1250 shiftrSpec = AST.Function (mkVHDLExtId shiftrId) [AST.IfaceVarDec vecPar vectorTM,
1251 AST.IfaceVarDec aPar elemTM ] vectorTM
1252 -- variable res : fsvec_x (0 to vec'length-1);
1255 (AST.SubtypeIn vectorTM
1256 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1257 [AST.ToRange (AST.PrimLit "0")
1258 (AST.PrimName (AST.NAttribute $
1259 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1260 (AST.PrimLit "1")) ]))
1262 -- res := tail(vec) & a
1263 shiftrExpr = AST.NSimple resId AST.:=
1264 ((AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId tailId))
1265 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]) AST.:&:
1266 (AST.PrimName (AST.NSimple aPar)))
1268 shiftrRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1269 nullSpec = AST.Function (mkVHDLExtId nullId) [AST.IfaceVarDec vecPar vectorTM] booleanTM
1270 -- return vec'length = 0
1271 nullExpr = AST.ReturnSm (Just $
1272 AST.PrimName (AST.NAttribute $
1273 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:=:
1275 rotlSpec = AST.Function (mkVHDLExtId rotlId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1276 -- variable res : fsvec_x (0 to vec'length-1);
1279 (AST.SubtypeIn vectorTM
1280 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1281 [AST.ToRange (AST.PrimLit "0")
1282 (AST.PrimName (AST.NAttribute $
1283 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1284 (AST.PrimLit "1")) ]))
1286 -- if null(vec) then res := vec else res := last(vec) & init(vec)
1287 rotlExpr = AST.IfSm (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId nullId))
1288 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)])
1289 [AST.NSimple resId AST.:= (AST.PrimName $ AST.NSimple vecPar)]
1291 (Just $ AST.Else [rotlExprRet])
1293 AST.NSimple resId AST.:=
1294 ((AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId lastId))
1295 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]) AST.:&:
1296 (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId initId))
1297 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]))
1298 rotlRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1299 rotrSpec = AST.Function (mkVHDLExtId rotrId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1300 -- variable res : fsvec_x (0 to vec'length-1);
1303 (AST.SubtypeIn vectorTM
1304 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1305 [AST.ToRange (AST.PrimLit "0")
1306 (AST.PrimName (AST.NAttribute $
1307 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1308 (AST.PrimLit "1")) ]))
1310 -- if null(vec) then res := vec else res := tail(vec) & head(vec)
1311 rotrExpr = AST.IfSm (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId nullId))
1312 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)])
1313 [AST.NSimple resId AST.:= (AST.PrimName $ AST.NSimple vecPar)]
1315 (Just $ AST.Else [rotrExprRet])
1317 AST.NSimple resId AST.:=
1318 ((AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId tailId))
1319 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]) AST.:&:
1320 (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId headId))
1321 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]))
1322 rotrRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1323 reverseSpec = AST.Function (mkVHDLExtId reverseId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1326 (AST.SubtypeIn vectorTM
1327 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1328 [AST.ToRange (AST.PrimLit "0")
1329 (AST.PrimName (AST.NAttribute $
1330 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1331 (AST.PrimLit "1")) ]))
1333 -- for i in 0 to res'range loop
1334 -- res(vec'length-i-1) := vec(i);
1337 AST.ForSM iId (AST.AttribRange $ AST.AttribName (AST.NSimple resId) (AST.NSimple $ rangeId) Nothing) [reverseAssign]
1338 -- res(vec'length-i-1) := vec(i);
1339 reverseAssign = AST.NIndexed (AST.IndexedName (AST.NSimple resId) [destExp]) AST.:=
1340 (AST.PrimName $ AST.NIndexed (AST.IndexedName (AST.NSimple vecPar)
1341 [AST.PrimName $ AST.NSimple iId]))
1342 where destExp = AST.PrimName (AST.NAttribute $ AST.AttribName (AST.NSimple vecPar)
1343 (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1344 AST.PrimName (AST.NSimple iId) AST.:-:
1347 reverseRet = AST.ReturnSm (Just $ AST.PrimName (AST.NSimple resId))
1350 -----------------------------------------------------------------------------
1351 -- A table of builtin functions
1352 -----------------------------------------------------------------------------
1354 -- A function that generates VHDL for a builtin function
1355 type BuiltinBuilder =
1356 (Either CoreSyn.CoreBndr AST.VHDLName) -- ^ The destination signal and it's original type
1357 -> CoreSyn.CoreBndr -- ^ The function called
1358 -> [Either CoreSyn.CoreExpr AST.Expr] -- ^ The value arguments passed (excluding type and
1359 -- dictionary arguments).
1360 -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
1361 -- ^ The corresponding VHDL concurrent statements and entities
1364 -- A map of a builtin function to VHDL function builder
1365 type NameTable = Map.Map String (Int, BuiltinBuilder )
1367 -- | The builtin functions we support. Maps a name to an argument count and a
1368 -- builder function.
1369 globalNameTable :: NameTable
1370 globalNameTable = Map.fromList
1371 [ (exId , (2, genFCall True ) )
1372 , (replaceId , (3, genFCall False ) )
1373 , (headId , (1, genFCall True ) )
1374 , (lastId , (1, genFCall True ) )
1375 , (tailId , (1, genFCall False ) )
1376 , (initId , (1, genFCall False ) )
1377 , (takeId , (2, genFCall False ) )
1378 , (dropId , (2, genFCall False ) )
1379 , (selId , (4, genFCall False ) )
1380 , (plusgtId , (2, genFCall False ) )
1381 , (ltplusId , (2, genFCall False ) )
1382 , (plusplusId , (2, genFCall False ) )
1383 , (mapId , (2, genMap ) )
1384 , (zipWithId , (3, genZipWith ) )
1385 , (foldlId , (3, genFoldl ) )
1386 , (foldrId , (3, genFoldr ) )
1387 , (zipId , (2, genZip ) )
1388 , (unzipId , (1, genUnzip ) )
1389 , (shiftlId , (2, genFCall False ) )
1390 , (shiftrId , (2, genFCall False ) )
1391 , (rotlId , (1, genFCall False ) )
1392 , (rotrId , (1, genFCall False ) )
1393 , (concatId , (1, genConcat ) )
1394 , (reverseId , (1, genFCall False ) )
1395 , (iteratenId , (3, genIteraten ) )
1396 , (iterateId , (2, genIterate ) )
1397 , (generatenId , (3, genGeneraten ) )
1398 , (generateId , (2, genGenerate ) )
1399 , (emptyId , (0, genFCall False ) )
1400 , (singletonId , (1, genFCall False ) )
1401 , (copynId , (2, genFCall False ) )
1402 , (copyId , (1, genCopy ) )
1403 , (lengthTId , (1, genFCall False ) )
1404 , (nullId , (1, genFCall False ) )
1405 , (hwxorId , (2, genOperator2 AST.Xor ) )
1406 , (hwandId , (2, genOperator2 AST.And ) )
1407 , (hworId , (2, genOperator2 AST.Or ) )
1408 , (hwnotId , (1, genOperator1 AST.Not ) )
1409 , (equalityId , (2, genOperator2 (AST.:=:) ) )
1410 , (inEqualityId , (2, genOperator2 (AST.:/=:) ) )
1411 , (boolOrId , (2, genOperator2 AST.Or ) )
1412 , (boolAndId , (2, genOperator2 AST.And ) )
1413 , (plusId , (2, genOperator2 (AST.:+:) ) )
1414 , (timesId , (2, genOperator2 (AST.:*:) ) )
1415 , (negateId , (1, genNegation ) )
1416 , (minusId , (2, genOperator2 (AST.:-:) ) )
1417 , (fromSizedWordId , (1, genFromSizedWord ) )
1418 , (fromIntegerId , (1, genFromInteger ) )
1419 , (resizeId , (1, genResize ) )
1420 , (sizedIntId , (1, genSizedInt ) )
1421 , (smallIntegerId , (1, genFromInteger ) )
1422 , (fstId , (1, genFst ) )
1423 , (sndId , (1, genSnd ) )
1424 --, (tfvecId , (1, genTFVec ) )
1425 , (minimumId , (2, error $ "\nFunction name: \"minimum\" is used internally, use another name"))