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 -- Split the normalized expression
48 let (args, binds, res) = Normalize.splitNormalized expr
49 -- Generate ports for all non-empty types
50 args' <- catMaybesM $ mapM mkMap args
51 -- TODO: Handle Nothing
53 count <- getA tsEntityCounter
54 let vhdl_id = mkVHDLBasicId $ varToString fname ++ "Component_" ++ show count
55 putA tsEntityCounter (count + 1)
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)
93 ++ [clk_port,resetn_port]
94 -- Add a clk port if we have state
95 clk_port = AST.IfaceSigDec clockId AST.In std_logicTM
96 resetn_port = AST.IfaceSigDec resetId AST.In std_logicTM
97 res_port = fmap (mkIfaceSigDec AST.Out) res
99 -- | Create a port declaration
101 AST.Mode -- ^ The mode for the port (In / Out)
102 -> Port -- ^ The id and type for the port
103 -> AST.IfaceSigDec -- ^ The resulting port declaration
105 mkIfaceSigDec mode (id, ty) = AST.IfaceSigDec id mode ty
107 -- | Create an architecture for a given function
109 CoreSyn.CoreBndr -- ^ The function to get an architecture for
110 -> TranslatorSession (Architecture, [CoreSyn.CoreBndr])
111 -- ^ The architecture for this function
113 getArchitecture fname = Utils.makeCached fname tsArchitectures $ do
114 expr <- Normalize.getNormalized fname
115 -- Split the normalized expression
116 let (args, binds, res) = Normalize.splitNormalized expr
118 -- Get the entity for this function
119 signature <- getEntity fname
120 let entity_id = ent_id signature
122 -- Create signal declarations for all binders in the let expression, except
123 -- for the output port (that will already have an output port declared in
125 sig_dec_maybes <- mapM (mkSigDec . fst) (filter ((/=res).fst) binds)
126 let sig_decs = Maybe.catMaybes $ sig_dec_maybes
127 -- Process each bind, resulting in info about state variables and concurrent
129 (state_vars, sms) <- Monad.mapAndUnzipM dobind binds
130 let (in_state_maybes, out_state_maybes) = unzip state_vars
131 let (statementss, used_entitiess) = unzip sms
132 -- Create a state proc, if needed
133 state_proc <- case (Maybe.catMaybes in_state_maybes, Maybe.catMaybes out_state_maybes) of
134 ([in_state], [out_state]) -> mkStateProcSm (in_state, out_state)
135 ([], []) -> return []
136 (ins, outs) -> error $ "Weird use of state in " ++ show fname ++ ". In: " ++ show ins ++ " Out: " ++ show outs
137 -- Join the create statements and the (optional) state_proc
138 let statements = concat statementss ++ state_proc
139 -- Create the architecture
140 let arch = AST.ArchBody (mkVHDLBasicId "structural") (AST.NSimple entity_id) (map AST.BDISD sig_decs) statements
141 let used_entities = concat used_entitiess
142 return (arch, used_entities)
144 dobind :: (CoreSyn.CoreBndr, CoreSyn.CoreExpr) -- ^ The bind to process
145 -> TranslatorSession ((Maybe CoreSyn.CoreBndr, Maybe CoreSyn.CoreBndr), ([AST.ConcSm], [CoreSyn.CoreBndr]))
146 -- ^ ((Input state variable, output state variable), (statements, used entities))
147 -- newtype unpacking is just a cast
148 dobind (bndr, unpacked@(CoreSyn.Cast packed coercion))
149 | hasStateType packed && not (hasStateType unpacked)
150 = return ((Just bndr, Nothing), ([], []))
151 -- With simplCore, newtype packing is just a cast
152 dobind (bndr, packed@(CoreSyn.Cast unpacked@(CoreSyn.Var state) coercion))
153 | hasStateType packed && not (hasStateType unpacked)
154 = return ((Nothing, Just state), ([], []))
155 -- Without simplCore, newtype packing uses a data constructor
156 dobind (bndr, (CoreSyn.App (CoreSyn.App (CoreSyn.Var con) (CoreSyn.Type _)) (CoreSyn.Var state)))
158 = return ((Nothing, Just state), ([], []))
159 -- Anything else is handled by mkConcSm
162 return ((Nothing, Nothing), sms)
165 (CoreSyn.CoreBndr, CoreSyn.CoreBndr) -- ^ The current and new state variables
166 -> TranslatorSession [AST.ConcSm] -- ^ The resulting statements
167 mkStateProcSm (old, new) = do
168 nonempty <- hasNonEmptyType old
170 then return [AST.CSPSm $ AST.ProcSm label [clockId,resetId] [statement]]
173 label = mkVHDLBasicId $ "state"
174 rising_edge = AST.NSimple $ mkVHDLBasicId "rising_edge"
175 wform = AST.Wform [AST.WformElem (AST.PrimName $ varToVHDLName new) Nothing]
176 clk_assign = AST.SigAssign (varToVHDLName old) wform
177 rising_edge_clk = AST.PrimFCall $ AST.FCall rising_edge [Nothing AST.:=>: (AST.ADName $ AST.NSimple clockId)]
178 resetn_is_low = (AST.PrimName $ AST.NSimple resetId) AST.:=: (AST.PrimLit "'0'")
180 clk_statement = [AST.ElseIf rising_edge_clk [clk_assign]]
181 statement = AST.IfSm resetn_is_low reset_statement clk_statement Nothing
184 -- | Transforms a core binding into a VHDL concurrent statement
186 (CoreSyn.CoreBndr, CoreSyn.CoreExpr) -- ^ The binding to process
187 -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
188 -- ^ The corresponding VHDL concurrent statements and entities
192 -- Ignore Cast expressions, they should not longer have any meaning as long as
193 -- the type works out. Throw away state repacking
194 mkConcSm (bndr, to@(CoreSyn.Cast from ty))
195 | hasStateType to && hasStateType from
197 mkConcSm (bndr, CoreSyn.Cast expr ty) = mkConcSm (bndr, expr)
199 -- Simple a = b assignments are just like applications, but without arguments.
200 -- We can't just generate an unconditional assignment here, since b might be a
201 -- top level binding (e.g., a function with no arguments).
202 mkConcSm (bndr, CoreSyn.Var v) = do
203 genApplication (Left bndr) v []
205 mkConcSm (bndr, app@(CoreSyn.App _ _))= do
206 let (CoreSyn.Var f, args) = CoreSyn.collectArgs app
207 let valargs = get_val_args (Var.varType f) args
208 genApplication (Left bndr) f (map Left valargs)
210 -- A single alt case must be a selector. This means the scrutinee is a simple
211 -- variable, the alternative is a dataalt with a single non-wild binder that
213 mkConcSm (bndr, expr@(CoreSyn.Case (CoreSyn.Var scrut) b ty [alt]))
214 -- Don't generate VHDL for substate extraction
215 | hasStateType bndr = return ([], [])
218 (CoreSyn.DataAlt dc, bndrs, (CoreSyn.Var sel_bndr)) -> do
219 bndrs' <- Monad.filterM hasNonEmptyType bndrs
220 case List.elemIndex sel_bndr bndrs' of
222 labels <- MonadState.lift tsType $ getFieldLabels (Id.idType scrut)
223 let label = labels!!i
224 let sel_name = mkSelectedName (varToVHDLName scrut) label
225 let sel_expr = AST.PrimName sel_name
226 return ([mkUncondAssign (Left bndr) sel_expr], [])
227 Nothing -> error $ "\nVHDL.mkConcSM: Not in normal form: Not a selector case:\n" ++ (pprString expr)
229 _ -> error $ "\nVHDL.mkConcSM: Not in normal form: Not a selector case:\n" ++ (pprString expr)
231 -- Multiple case alt are be conditional assignments and have only wild
232 -- binders in the alts and only variables in the case values and a variable
233 -- for a scrutinee. We check the constructor of the second alt, since the
234 -- first is the default case, if there is any.
235 -- mkConcSm (bndr, (CoreSyn.Case (CoreSyn.Var scrut) b ty [(_, _, CoreSyn.Var false), (con, _, CoreSyn.Var true)])) = do
236 -- scrut' <- MonadState.lift tsType $ varToVHDLExpr scrut
237 -- altcon <- MonadState.lift tsType $ altconToVHDLExpr con
238 -- let cond_expr = scrut' AST.:=: altcon
239 -- true_expr <- MonadState.lift tsType $ varToVHDLExpr true
240 -- false_expr <- MonadState.lift tsType $ varToVHDLExpr false
241 -- return ([mkCondAssign (Left bndr) cond_expr true_expr false_expr], [])
243 mkConcSm (bndr, (CoreSyn.Case (CoreSyn.Var scrut) _ _ (alt:alts))) = do --error "\nVHDL.mkConcSm: Not in normal form: Case statement with more than two alternatives"
244 scrut' <- MonadState.lift tsType $ varToVHDLExpr scrut
245 altcons <- MonadState.lift tsType $ mapM (altconToVHDLExpr . (\(con,_,_) -> con)) (alts ++ [alt])
246 let cond_exprs = map (\x -> scrut' AST.:=: x) (init altcons)
247 exprs <- MonadState.lift tsType $ mapM (varToVHDLExpr . (\(_,_,CoreSyn.Var expr) -> expr)) (alts ++ [alt])
248 return ([mkAltsAssign (Left bndr) cond_exprs exprs], [])
250 mkConcSm (_, CoreSyn.Case _ _ _ _) = error "\nVHDL.mkConcSm: Not in normal form: Case statement has does not have a simple variable as scrutinee"
251 mkConcSm (bndr, expr) = error $ "\nVHDL.mkConcSM: Unsupported binding in let expression: " ++ pprString bndr ++ " = " ++ pprString expr
253 -----------------------------------------------------------------------------
254 -- Functions to generate VHDL for builtin functions
255 -----------------------------------------------------------------------------
257 -- | A function to wrap a builder-like function that expects its arguments to
259 genExprArgs wrap dst func args = do
260 args' <- argsToVHDLExprs args
263 -- | Turn the all lefts into VHDL Expressions.
264 argsToVHDLExprs :: [Either CoreSyn.CoreExpr AST.Expr] -> TranslatorSession [AST.Expr]
265 argsToVHDLExprs = catMaybesM . (mapM argToVHDLExpr)
267 argToVHDLExpr :: Either CoreSyn.CoreExpr AST.Expr -> TranslatorSession (Maybe AST.Expr)
268 argToVHDLExpr (Left expr) = MonadState.lift tsType $ do
269 let errmsg = "Generate.argToVHDLExpr: Using non-representable type? Should not happen!"
270 ty_maybe <- vhdl_ty errmsg expr
273 vhdl_expr <- varToVHDLExpr $ exprToVar expr
274 return $ Just vhdl_expr
275 Nothing -> return $ Nothing
277 argToVHDLExpr (Right expr) = return $ Just expr
279 -- A function to wrap a builder-like function that generates no component
282 (dst -> func -> args -> TranslatorSession [AST.ConcSm])
283 -> (dst -> func -> args -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr]))
284 genNoInsts wrap dst func args = do
285 concsms <- wrap dst func args
288 -- | A function to wrap a builder-like function that expects its arguments to
291 (dst -> func -> [Var.Var] -> res)
292 -> (dst -> func -> [Either CoreSyn.CoreExpr AST.Expr] -> res)
293 genVarArgs wrap dst func args = wrap dst func args'
295 args' = map exprToVar exprargs
296 -- Check (rather crudely) that all arguments are CoreExprs
297 (exprargs, []) = Either.partitionEithers args
299 -- | A function to wrap a builder-like function that expects its arguments to
302 (dst -> func -> [Literal.Literal] -> TranslatorSession [AST.ConcSm])
303 -> (dst -> func -> [Either CoreSyn.CoreExpr AST.Expr] -> TranslatorSession [AST.ConcSm])
304 genLitArgs wrap dst func args = do
305 hscenv <- MonadState.lift tsType $ getA tsHscEnv
306 let (exprargs, []) = Either.partitionEithers args
307 -- FIXME: Check if we were passed an CoreSyn.App
308 let litargs = concat (map (getLiterals hscenv) exprargs)
309 let args' = map exprToLit litargs
310 concsms <- wrap dst func args'
313 -- | A function to wrap a builder-like function that produces an expression
314 -- and expects it to be assigned to the destination.
316 ((Either CoreSyn.CoreBndr AST.VHDLName) -> func -> [arg] -> TranslatorSession AST.Expr)
317 -> ((Either CoreSyn.CoreBndr AST.VHDLName) -> func -> [arg] -> TranslatorSession [AST.ConcSm])
318 genExprRes wrap dst func args = do
319 expr <- wrap dst func args
320 return $ [mkUncondAssign dst expr]
322 -- | Generate a binary operator application. The first argument should be a
323 -- constructor from the AST.Expr type, e.g. AST.And.
324 genOperator2 :: (AST.Expr -> AST.Expr -> AST.Expr) -> BuiltinBuilder
325 genOperator2 op = genNoInsts $ genExprArgs $ genExprRes (genOperator2' op)
326 genOperator2' :: (AST.Expr -> AST.Expr -> AST.Expr) -> dst -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
327 genOperator2' op _ f [arg1, arg2] = return $ op arg1 arg2
329 -- | Generate a unary operator application
330 genOperator1 :: (AST.Expr -> AST.Expr) -> BuiltinBuilder
331 genOperator1 op = genNoInsts $ genExprArgs $ genExprRes (genOperator1' op)
332 genOperator1' :: (AST.Expr -> AST.Expr) -> dst -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
333 genOperator1' op _ f [arg] = return $ op arg
335 -- | Generate a unary operator application
336 genNegation :: BuiltinBuilder
337 genNegation = genNoInsts $ genVarArgs $ genExprRes genNegation'
338 genNegation' :: dst -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession AST.Expr
339 genNegation' _ f [arg] = do
340 arg1 <- MonadState.lift tsType $ varToVHDLExpr arg
341 let ty = Var.varType arg
342 let (tycon, args) = Type.splitTyConApp ty
343 let name = Name.getOccString (TyCon.tyConName tycon)
345 "SizedInt" -> return $ AST.Neg arg1
346 otherwise -> error $ "\nGenerate.genNegation': Negation allowed for type: " ++ show name
348 -- | Generate a function call from the destination binder, function name and a
349 -- list of expressions (its arguments)
350 genFCall :: Bool -> BuiltinBuilder
351 genFCall switch = genNoInsts $ genExprArgs $ genExprRes (genFCall' switch)
352 genFCall' :: Bool -> Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
353 genFCall' switch (Left res) f args = do
354 let fname = varToString f
355 let el_ty = if switch then (Var.varType res) else ((tfvec_elem . Var.varType) res)
356 id <- MonadState.lift tsType $ vectorFunId el_ty fname
357 return $ AST.PrimFCall $ AST.FCall (AST.NSimple id) $
358 map (\exp -> Nothing AST.:=>: AST.ADExpr exp) args
359 genFCall' _ (Right name) _ _ = error $ "\nGenerate.genFCall': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
361 genFromSizedWord :: BuiltinBuilder
362 genFromSizedWord = genNoInsts $ genExprArgs genFromSizedWord'
363 genFromSizedWord' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession [AST.ConcSm]
364 genFromSizedWord' (Left res) f args@[arg] = do
365 return $ [mkUncondAssign (Left res) arg]
366 -- let fname = varToString f
367 -- return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId toIntegerId)) $
368 -- map (\exp -> Nothing AST.:=>: AST.ADExpr exp) args
369 genFromSizedWord' (Right name) _ _ = error $ "\nGenerate.genFromSizedWord': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
371 genResize :: BuiltinBuilder
372 genResize = genNoInsts $ genExprArgs $ genExprRes genResize'
373 genResize' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
374 genResize' (Left res) f [arg] = do {
375 ; let { ty = Var.varType res
376 ; (tycon, args) = Type.splitTyConApp ty
377 ; name = Name.getOccString (TyCon.tyConName tycon)
379 ; len <- case name of
380 "SizedInt" -> MonadState.lift tsType $ tfp_to_int (sized_int_len_ty ty)
381 "SizedWord" -> MonadState.lift tsType $ tfp_to_int (sized_word_len_ty ty)
382 ; return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId resizeId))
383 [Nothing AST.:=>: AST.ADExpr arg, Nothing AST.:=>: AST.ADExpr( AST.PrimLit (show len))]
385 genResize' (Right name) _ _ = error $ "\nGenerate.genFromSizedWord': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
387 -- FIXME: I'm calling genLitArgs which is very specific function,
388 -- which needs to be fixed as well
389 genFromInteger :: BuiltinBuilder
390 genFromInteger = genNoInsts $ genLitArgs $ genExprRes genFromInteger'
391 genFromInteger' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [Literal.Literal] -> TranslatorSession AST.Expr
392 genFromInteger' (Left res) f lits = do {
393 ; let { ty = Var.varType res
394 ; (tycon, args) = Type.splitTyConApp ty
395 ; name = Name.getOccString (TyCon.tyConName tycon)
397 ; len <- case name of
398 "SizedInt" -> MonadState.lift tsType $ tfp_to_int (sized_int_len_ty ty)
399 "SizedWord" -> MonadState.lift tsType $ tfp_to_int (sized_word_len_ty ty)
401 ; bound <- MonadState.lift tsType $ tfp_to_int (ranged_word_bound_ty ty)
402 ; return $ floor (logBase 2 (fromInteger (toInteger (bound)))) + 1
404 ; let fname = case name of "SizedInt" -> toSignedId ; "SizedWord" -> toUnsignedId ; "RangedWord" -> toUnsignedId
405 ; return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId fname))
406 [Nothing AST.:=>: AST.ADExpr (AST.PrimLit (show (last lits))), Nothing AST.:=>: AST.ADExpr( AST.PrimLit (show len))]
410 genFromInteger' (Right name) _ _ = error $ "\nGenerate.genFromInteger': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
412 genSizedInt :: BuiltinBuilder
413 genSizedInt = genFromInteger
416 -- | Generate a Builder for the builtin datacon TFVec
417 genTFVec :: BuiltinBuilder
418 genTFVec (Left res) f [Left (CoreSyn.Let (CoreSyn.Rec letBinders) letRes)] = do {
419 -- Generate Assignments for all the binders
420 ; letAssigns <- mapM genBinderAssign letBinders
421 -- Generate assignments for the result (which might be another let binding)
422 ; (resBinders,resAssignments) <- genResAssign letRes
423 -- Get all the Assigned binders
424 ; let assignedBinders = Maybe.catMaybes (map fst letAssigns)
425 -- Make signal names for all the assigned binders
426 ; sigs <- mapM (\x -> MonadState.lift tsType $ varToVHDLExpr x) (assignedBinders ++ resBinders)
427 -- Assign all the signals to the resulting vector
428 ; let { vecsigns = mkAggregateSignal sigs
429 ; vecassign = mkUncondAssign (Left res) vecsigns
431 -- Generate all the signal declaration for the assigned binders
432 ; sig_dec_maybes <- mapM mkSigDec (assignedBinders ++ resBinders)
433 ; let { sig_decs = map (AST.BDISD) (Maybe.catMaybes $ sig_dec_maybes)
434 -- Setup the VHDL Block
435 ; block_label = mkVHDLExtId ("TFVec_" ++ show (varToString res))
436 ; block = AST.BlockSm block_label [] (AST.PMapAspect []) sig_decs ((concat (map snd letAssigns)) ++ resAssignments ++ [vecassign])
438 -- Return the block statement coressponding to the TFVec literal
439 ; return $ [AST.CSBSm block]
442 genBinderAssign :: (CoreSyn.CoreBndr, CoreSyn.CoreExpr) -> TranslatorSession (Maybe CoreSyn.CoreBndr, [AST.ConcSm])
443 -- For now we only translate applications
444 genBinderAssign (bndr, app@(CoreSyn.App _ _)) = do
445 let (CoreSyn.Var f, args) = CoreSyn.collectArgs app
446 let valargs = get_val_args (Var.varType f) args
447 apps <- genApplication (Left bndr) f (map Left valargs)
448 return (Just bndr, apps)
449 genBinderAssign _ = return (Nothing,[])
450 genResAssign :: CoreSyn.CoreExpr -> TranslatorSession ([CoreSyn.CoreBndr], [AST.ConcSm])
451 genResAssign app@(CoreSyn.App _ letexpr) = do
453 (CoreSyn.Let (CoreSyn.Rec letbndrs) letres) -> do
454 letapps <- mapM genBinderAssign letbndrs
455 let bndrs = Maybe.catMaybes (map fst letapps)
456 let app = (map snd letapps)
457 (vars, apps) <- genResAssign letres
458 return ((bndrs ++ vars),((concat app) ++ apps))
459 otherwise -> return ([],[])
460 genResAssign _ = return ([],[])
462 genTFVec (Left res) f [Left app@(CoreSyn.App _ _)] = do {
463 ; let { elems = reduceCoreListToHsList app
464 -- Make signal names for all the binders
465 ; binders = map (\expr -> case expr of
467 otherwise -> error $ "\nGenerate.genTFVec: Cannot generate TFVec: "
468 ++ show res ++ ", with elems:\n" ++ show elems ++ "\n" ++ pprString elems) elems
470 ; sigs <- mapM (\x -> MonadState.lift tsType $ varToVHDLExpr x) binders
471 -- Assign all the signals to the resulting vector
472 ; let { vecsigns = mkAggregateSignal sigs
473 ; vecassign = mkUncondAssign (Left res) vecsigns
474 -- Setup the VHDL Block
475 ; block_label = mkVHDLExtId ("TFVec_" ++ show (varToString res))
476 ; block = AST.BlockSm block_label [] (AST.PMapAspect []) [] [vecassign]
478 -- Return the block statement coressponding to the TFVec literal
479 ; return $ [AST.CSBSm block]
482 genTFVec (Left name) _ [Left xs] = error $ "\nGenerate.genTFVec: Cannot generate TFVec: " ++ show name ++ ", with elems:\n" ++ show xs ++ "\n" ++ pprString xs
484 genTFVec (Right name) _ _ = error $ "\nGenerate.genTFVec: Cannot generate TFVec assigned to VHDLName: " ++ show name
486 -- | Generate a generate statement for the builtin function "map"
487 genMap :: BuiltinBuilder
488 genMap (Left res) f [Left mapped_f, Left (CoreSyn.Var arg)] = do {
489 -- mapped_f must be a CoreExpr (since we can't represent functions as VHDL
490 -- expressions). arg must be a CoreExpr (and should be a CoreSyn.Var), since
491 -- we must index it (which we couldn't if it was a VHDL Expr, since only
492 -- VHDLNames can be indexed).
493 -- Setup the generate scheme
494 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) res
495 -- TODO: Use something better than varToString
496 ; let { label = mkVHDLExtId ("mapVector" ++ (varToString res))
497 ; n_id = mkVHDLBasicId "n"
498 ; n_expr = idToVHDLExpr n_id
499 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
500 ; genScheme = AST.ForGn n_id range
501 -- Create the content of the generate statement: Applying the mapped_f to
502 -- each of the elements in arg, storing to each element in res
503 ; resname = mkIndexedName (varToVHDLName res) n_expr
504 ; argexpr = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg) n_expr
505 ; (CoreSyn.Var real_f, already_mapped_args) = CoreSyn.collectArgs mapped_f
506 ; valargs = get_val_args (Var.varType real_f) already_mapped_args
508 ; (app_concsms, used) <- genApplication (Right resname) real_f (map Left valargs ++ [Right argexpr])
509 -- Return the generate statement
510 ; return ([AST.CSGSm $ AST.GenerateSm label genScheme [] app_concsms], used)
513 genMap' (Right name) _ _ = error $ "\nGenerate.genMap': Cannot generate map function call assigned to a VHDLName: " ++ show name
515 genZipWith :: BuiltinBuilder
516 genZipWith = genVarArgs genZipWith'
517 genZipWith' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
518 genZipWith' (Left res) f args@[zipped_f, arg1, arg2] = do {
519 -- Setup the generate scheme
520 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) res
521 -- TODO: Use something better than varToString
522 ; let { label = mkVHDLExtId ("zipWithVector" ++ (varToString res))
523 ; n_id = mkVHDLBasicId "n"
524 ; n_expr = idToVHDLExpr n_id
525 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
526 ; genScheme = AST.ForGn n_id range
527 -- Create the content of the generate statement: Applying the zipped_f to
528 -- each of the elements in arg1 and arg2, storing to each element in res
529 ; resname = mkIndexedName (varToVHDLName res) n_expr
530 ; argexpr1 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg1) n_expr
531 ; argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg2) n_expr
533 ; (app_concsms, used) <- genApplication (Right resname) zipped_f [Right argexpr1, Right argexpr2]
534 -- Return the generate functions
535 ; return ([AST.CSGSm $ AST.GenerateSm label genScheme [] app_concsms], used)
538 genFoldl :: BuiltinBuilder
539 genFoldl = genFold True
541 genFoldr :: BuiltinBuilder
542 genFoldr = genFold False
544 genFold :: Bool -> BuiltinBuilder
545 genFold left = genVarArgs (genFold' left)
547 genFold' :: Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
548 genFold' left res f args@[folded_f , start ,vec]= do
549 len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty (Var.varType vec))
550 genFold'' len left res f args
552 genFold'' :: Int -> Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
553 -- Special case for an empty input vector, just assign start to res
554 genFold'' len left (Left res) _ [_, start, vec] | len == 0 = do
555 arg <- MonadState.lift tsType $ varToVHDLExpr start
556 return ([mkUncondAssign (Left res) arg], [])
558 genFold'' len left (Left res) f [folded_f, start, vec] = do
560 --len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) vec
561 -- An expression for len-1
562 let len_min_expr = (AST.PrimLit $ show (len-1))
563 -- evec is (TFVec n), so it still needs an element type
564 let (nvec, _) = Type.splitAppTy (Var.varType vec)
565 -- Put the type of the start value in nvec, this will be the type of our
567 let tmp_ty = Type.mkAppTy nvec (Var.varType start)
568 let error_msg = "\nGenerate.genFold': Can not construct temp vector for element type: " ++ pprString tmp_ty
569 -- TODO: Handle Nothing
570 Just tmp_vhdl_ty <- MonadState.lift tsType $ vhdl_ty error_msg tmp_ty
571 -- Setup the generate scheme
572 let gen_label = mkVHDLExtId ("foldlVector" ++ (varToString vec))
573 let block_label = mkVHDLExtId ("foldlVector" ++ (varToString res))
574 let gen_range = if left then AST.ToRange (AST.PrimLit "0") len_min_expr
575 else AST.DownRange len_min_expr (AST.PrimLit "0")
576 let gen_scheme = AST.ForGn n_id gen_range
577 -- Make the intermediate vector
578 let tmp_dec = AST.BDISD $ AST.SigDec tmp_id tmp_vhdl_ty Nothing
579 -- Create the generate statement
580 cells' <- sequence [genFirstCell, genOtherCell]
581 let (cells, useds) = unzip cells'
582 let gen_sm = AST.GenerateSm gen_label gen_scheme [] (map AST.CSGSm cells)
583 -- Assign tmp[len-1] or tmp[0] to res
584 let out_assign = mkUncondAssign (Left res) $ vhdlNameToVHDLExpr (if left then
585 (mkIndexedName tmp_name (AST.PrimLit $ show (len-1))) else
586 (mkIndexedName tmp_name (AST.PrimLit "0")))
587 let block = AST.BlockSm block_label [] (AST.PMapAspect []) [tmp_dec] [AST.CSGSm gen_sm, out_assign]
588 return ([AST.CSBSm block], concat useds)
590 -- An id for the counter
591 n_id = mkVHDLBasicId "n"
592 n_cur = idToVHDLExpr n_id
593 -- An expression for previous n
594 n_prev = if left then (n_cur AST.:-: (AST.PrimLit "1"))
595 else (n_cur AST.:+: (AST.PrimLit "1"))
596 -- An id for the tmp result vector
597 tmp_id = mkVHDLBasicId "tmp"
598 tmp_name = AST.NSimple tmp_id
599 -- Generate parts of the fold
600 genFirstCell, genOtherCell :: TranslatorSession (AST.GenerateSm, [CoreSyn.CoreBndr])
602 len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) vec
603 let cond_label = mkVHDLExtId "firstcell"
604 -- if n == 0 or n == len-1
605 let cond_scheme = AST.IfGn $ n_cur AST.:=: (if left then (AST.PrimLit "0")
606 else (AST.PrimLit $ show (len-1)))
607 -- Output to tmp[current n]
608 let resname = mkIndexedName tmp_name n_cur
610 argexpr1 <- MonadState.lift tsType $ varToVHDLExpr start
611 -- Input from vec[current n]
612 let argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName vec) n_cur
613 (app_concsms, used) <- genApplication (Right resname) folded_f ( if left then
614 [Right argexpr1, Right argexpr2]
616 [Right argexpr2, Right argexpr1]
618 -- Return the conditional generate part
619 return $ (AST.GenerateSm cond_label cond_scheme [] app_concsms, used)
622 len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) vec
623 let cond_label = mkVHDLExtId "othercell"
624 -- if n > 0 or n < len-1
625 let cond_scheme = AST.IfGn $ n_cur AST.:/=: (if left then (AST.PrimLit "0")
626 else (AST.PrimLit $ show (len-1)))
627 -- Output to tmp[current n]
628 let resname = mkIndexedName tmp_name n_cur
629 -- Input from tmp[previous n]
630 let argexpr1 = vhdlNameToVHDLExpr $ mkIndexedName tmp_name n_prev
631 -- Input from vec[current n]
632 let argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName vec) n_cur
633 (app_concsms, used) <- genApplication (Right resname) folded_f ( if left then
634 [Right argexpr1, Right argexpr2]
636 [Right argexpr2, Right argexpr1]
638 -- Return the conditional generate part
639 return $ (AST.GenerateSm cond_label cond_scheme [] app_concsms, used)
641 -- | Generate a generate statement for the builtin function "zip"
642 genZip :: BuiltinBuilder
643 genZip = genNoInsts $ genVarArgs genZip'
644 genZip' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
645 genZip' (Left res) f args@[arg1, arg2] = do {
646 -- Setup the generate scheme
647 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) res
648 -- TODO: Use something better than varToString
649 ; let { label = mkVHDLExtId ("zipVector" ++ (varToString res))
650 ; n_id = mkVHDLBasicId "n"
651 ; n_expr = idToVHDLExpr n_id
652 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
653 ; genScheme = AST.ForGn n_id range
654 ; resname' = mkIndexedName (varToVHDLName res) n_expr
655 ; argexpr1 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg1) n_expr
656 ; argexpr2 = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg2) n_expr
658 ; labels <- MonadState.lift tsType $ getFieldLabels (tfvec_elem (Var.varType res))
659 ; let { resnameA = mkSelectedName resname' (labels!!0)
660 ; resnameB = mkSelectedName resname' (labels!!1)
661 ; resA_assign = mkUncondAssign (Right resnameA) argexpr1
662 ; resB_assign = mkUncondAssign (Right resnameB) argexpr2
664 -- Return the generate functions
665 ; return [AST.CSGSm $ AST.GenerateSm label genScheme [] [resA_assign,resB_assign]]
668 -- | Generate a generate statement for the builtin function "fst"
669 genFst :: BuiltinBuilder
670 genFst = genNoInsts $ genVarArgs genFst'
671 genFst' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
672 genFst' (Left res) f args@[arg] = do {
673 ; labels <- MonadState.lift tsType $ getFieldLabels (Var.varType arg)
674 ; let { argexpr' = varToVHDLName arg
675 ; argexprA = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (labels!!0)
676 ; assign = mkUncondAssign (Left res) argexprA
678 -- Return the generate functions
682 -- | Generate a generate statement for the builtin function "snd"
683 genSnd :: BuiltinBuilder
684 genSnd = genNoInsts $ genVarArgs genSnd'
685 genSnd' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
686 genSnd' (Left res) f args@[arg] = do {
687 ; labels <- MonadState.lift tsType $ getFieldLabels (Var.varType arg)
688 ; let { argexpr' = varToVHDLName arg
689 ; argexprB = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (labels!!1)
690 ; assign = mkUncondAssign (Left res) argexprB
692 -- Return the generate functions
696 -- | Generate a generate statement for the builtin function "unzip"
697 genUnzip :: BuiltinBuilder
698 genUnzip = genNoInsts $ genVarArgs genUnzip'
699 genUnzip' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
700 genUnzip' (Left res) f args@[arg] = do {
701 -- Setup the generate scheme
702 ; len <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) arg
703 -- TODO: Use something better than varToString
704 ; let { label = mkVHDLExtId ("unzipVector" ++ (varToString res))
705 ; n_id = mkVHDLBasicId "n"
706 ; n_expr = idToVHDLExpr n_id
707 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len-1))
708 ; genScheme = AST.ForGn n_id range
709 ; resname' = varToVHDLName res
710 ; argexpr' = mkIndexedName (varToVHDLName arg) n_expr
712 ; reslabels <- MonadState.lift tsType $ getFieldLabels (Var.varType res)
713 ; arglabels <- MonadState.lift tsType $ getFieldLabels (tfvec_elem (Var.varType arg))
714 ; let { resnameA = mkIndexedName (mkSelectedName resname' (reslabels!!0)) n_expr
715 ; resnameB = mkIndexedName (mkSelectedName resname' (reslabels!!1)) n_expr
716 ; argexprA = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (arglabels!!0)
717 ; argexprB = vhdlNameToVHDLExpr $ mkSelectedName argexpr' (arglabels!!1)
718 ; resA_assign = mkUncondAssign (Right resnameA) argexprA
719 ; resB_assign = mkUncondAssign (Right resnameB) argexprB
721 -- Return the generate functions
722 ; return [AST.CSGSm $ AST.GenerateSm label genScheme [] [resA_assign,resB_assign]]
725 genCopy :: BuiltinBuilder
726 genCopy = genNoInsts $ genVarArgs genCopy'
727 genCopy' :: (Either CoreSyn.CoreBndr AST.VHDLName ) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
728 genCopy' (Left res) f args@[arg] =
730 resExpr = AST.Aggregate [AST.ElemAssoc (Just AST.Others)
731 (AST.PrimName $ (varToVHDLName arg))]
732 out_assign = mkUncondAssign (Left res) resExpr
736 genConcat :: BuiltinBuilder
737 genConcat = genNoInsts $ genVarArgs genConcat'
738 genConcat' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
739 genConcat' (Left res) f args@[arg] = do {
740 -- Setup the generate scheme
741 ; len1 <- MonadState.lift tsType $ tfp_to_int $ (tfvec_len_ty . Var.varType) arg
742 ; let (_, nvec) = Type.splitAppTy (Var.varType arg)
743 ; len2 <- MonadState.lift tsType $ tfp_to_int $ tfvec_len_ty nvec
744 -- TODO: Use something better than varToString
745 ; let { label = mkVHDLExtId ("concatVector" ++ (varToString res))
746 ; n_id = mkVHDLBasicId "n"
747 ; n_expr = idToVHDLExpr n_id
748 ; fromRange = n_expr AST.:*: (AST.PrimLit $ show len2)
749 ; genScheme = AST.ForGn n_id range
750 -- Create the content of the generate statement: Applying the mapped_f to
751 -- each of the elements in arg, storing to each element in res
752 ; toRange = (n_expr AST.:*: (AST.PrimLit $ show len2)) AST.:+: (AST.PrimLit $ show (len2-1))
753 ; range = AST.ToRange (AST.PrimLit "0") (AST.PrimLit $ show (len1-1))
754 ; resname = vecSlice fromRange toRange
755 ; argexpr = vhdlNameToVHDLExpr $ mkIndexedName (varToVHDLName arg) n_expr
756 ; out_assign = mkUncondAssign (Right resname) argexpr
758 -- Return the generate statement
759 ; return [AST.CSGSm $ AST.GenerateSm label genScheme [] [out_assign]]
762 vecSlice init last = AST.NSlice (AST.SliceName (varToVHDLName res)
763 (AST.ToRange init last))
765 genIteraten :: BuiltinBuilder
766 genIteraten dst f args = genIterate dst f (tail args)
768 genIterate :: BuiltinBuilder
769 genIterate = genIterateOrGenerate True
771 genGeneraten :: BuiltinBuilder
772 genGeneraten dst f args = genGenerate dst f (tail args)
774 genGenerate :: BuiltinBuilder
775 genGenerate = genIterateOrGenerate False
777 genIterateOrGenerate :: Bool -> BuiltinBuilder
778 genIterateOrGenerate iter = genVarArgs (genIterateOrGenerate' iter)
780 genIterateOrGenerate' :: Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
781 genIterateOrGenerate' iter (Left res) f args = do
782 len <- MonadState.lift tsType $ tfp_to_int ((tfvec_len_ty . Var.varType) res)
783 genIterateOrGenerate'' len iter (Left res) f args
785 genIterateOrGenerate'' :: Int -> Bool -> (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
786 -- Special case for an empty input vector, just assign start to res
787 genIterateOrGenerate'' len iter (Left res) _ [app_f, start] | len == 0 = return ([mkUncondAssign (Left res) (AST.PrimLit "\"\"")], [])
789 genIterateOrGenerate'' len iter (Left res) f [app_f, start] = do
791 -- len <- MonadState.lift tsType $ tfp_to_int ((tfvec_len_ty . Var.varType) res)
792 -- An expression for len-1
793 let len_min_expr = (AST.PrimLit $ show (len-1))
794 -- -- evec is (TFVec n), so it still needs an element type
795 -- let (nvec, _) = splitAppTy (Var.varType vec)
796 -- -- Put the type of the start value in nvec, this will be the type of our
797 -- -- temporary vector
798 let tmp_ty = Var.varType res
799 let error_msg = "\nGenerate.genFold': Can not construct temp vector for element type: " ++ pprString tmp_ty
800 -- TODO: Handle Nothing
801 Just tmp_vhdl_ty <- MonadState.lift tsType $ vhdl_ty error_msg tmp_ty
802 -- Setup the generate scheme
803 let gen_label = mkVHDLExtId ("iterateVector" ++ (varToString start))
804 let block_label = mkVHDLExtId ("iterateVector" ++ (varToString res))
805 let gen_range = AST.ToRange (AST.PrimLit "0") len_min_expr
806 let gen_scheme = AST.ForGn n_id gen_range
807 -- Make the intermediate vector
808 let tmp_dec = AST.BDISD $ AST.SigDec tmp_id tmp_vhdl_ty Nothing
809 -- Create the generate statement
810 cells' <- sequence [genFirstCell, genOtherCell]
811 let (cells, useds) = unzip cells'
812 let gen_sm = AST.GenerateSm gen_label gen_scheme [] (map AST.CSGSm cells)
813 -- Assign tmp[len-1] or tmp[0] to res
814 let out_assign = mkUncondAssign (Left res) $ vhdlNameToVHDLExpr tmp_name
815 let block = AST.BlockSm block_label [] (AST.PMapAspect []) [tmp_dec] [AST.CSGSm gen_sm, out_assign]
816 return ([AST.CSBSm block], concat useds)
818 -- An id for the counter
819 n_id = mkVHDLBasicId "n"
820 n_cur = idToVHDLExpr n_id
821 -- An expression for previous n
822 n_prev = n_cur AST.:-: (AST.PrimLit "1")
823 -- An id for the tmp result vector
824 tmp_id = mkVHDLBasicId "tmp"
825 tmp_name = AST.NSimple tmp_id
826 -- Generate parts of the fold
827 genFirstCell, genOtherCell :: TranslatorSession (AST.GenerateSm, [CoreSyn.CoreBndr])
829 let cond_label = mkVHDLExtId "firstcell"
830 -- if n == 0 or n == len-1
831 let cond_scheme = AST.IfGn $ n_cur AST.:=: (AST.PrimLit "0")
832 -- Output to tmp[current n]
833 let resname = mkIndexedName tmp_name n_cur
835 argexpr <- MonadState.lift tsType $ varToVHDLExpr start
836 let startassign = mkUncondAssign (Right resname) argexpr
837 (app_concsms, used) <- genApplication (Right resname) app_f [Right argexpr]
838 -- Return the conditional generate part
839 let gensm = AST.GenerateSm cond_label cond_scheme [] (if iter then
847 let cond_label = mkVHDLExtId "othercell"
848 -- if n > 0 or n < len-1
849 let cond_scheme = AST.IfGn $ n_cur AST.:/=: (AST.PrimLit "0")
850 -- Output to tmp[current n]
851 let resname = mkIndexedName tmp_name n_cur
852 -- Input from tmp[previous n]
853 let argexpr = vhdlNameToVHDLExpr $ mkIndexedName tmp_name n_prev
854 (app_concsms, used) <- genApplication (Right resname) app_f [Right argexpr]
855 -- Return the conditional generate part
856 return $ (AST.GenerateSm cond_label cond_scheme [] app_concsms, used)
858 genBlockRAM :: BuiltinBuilder
859 genBlockRAM = genNoInsts $ genExprArgs genBlockRAM'
861 genBlockRAM' :: (Either CoreSyn.CoreBndr AST.VHDLName) -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession [AST.ConcSm]
862 genBlockRAM' (Left res) f args@[data_in,rdaddr,wraddr,wrenable] = do
864 let (tup,data_out) = Type.splitAppTy (Var.varType res)
865 let (tup',ramvec) = Type.splitAppTy tup
866 let Just realram = Type.coreView ramvec
867 let Just (tycon, types) = Type.splitTyConApp_maybe realram
868 Just ram_vhdl_ty <- MonadState.lift tsType $ vhdl_ty "wtf" (head types)
869 -- Make the intermediate vector
870 let ram_dec = AST.BDISD $ AST.SigDec ram_id ram_vhdl_ty Nothing
871 -- Get the data_out name
872 reslabels <- MonadState.lift tsType $ getFieldLabels (Var.varType res)
873 let resname' = varToVHDLName res
874 let resname = mkSelectedName resname' (reslabels!!0)
875 let rdaddr_int = genExprFCall (mkVHDLBasicId toIntegerId) rdaddr
876 let argexpr = vhdlNameToVHDLExpr $ mkIndexedName (AST.NSimple ram_id) rdaddr_int
877 let assign = mkUncondAssign (Right resname) argexpr
878 let block_label = mkVHDLExtId ("blockRAM" ++ (varToString res))
879 let block = AST.BlockSm block_label [] (AST.PMapAspect []) [ram_dec] [assign, mkUpdateProcSm]
880 return [AST.CSBSm block]
882 ram_id = mkVHDLBasicId "ram"
883 mkUpdateProcSm :: AST.ConcSm
884 mkUpdateProcSm = AST.CSPSm $ AST.ProcSm proclabel [clockId] [statement]
886 proclabel = mkVHDLBasicId "updateRAM"
887 rising_edge = mkVHDLBasicId "rising_edge"
888 wraddr_int = genExprFCall (mkVHDLBasicId toIntegerId) wraddr
889 ramloc = mkIndexedName (AST.NSimple ram_id) wraddr_int
890 wform = AST.Wform [AST.WformElem data_in Nothing]
891 ramassign = AST.SigAssign ramloc wform
892 rising_edge_clk = genExprFCall rising_edge (AST.PrimName $ AST.NSimple clockId)
893 statement = AST.IfSm (AST.And rising_edge_clk wrenable) [ramassign] [] Nothing
895 -----------------------------------------------------------------------------
896 -- Function to generate VHDL for applications
897 -----------------------------------------------------------------------------
899 (Either CoreSyn.CoreBndr AST.VHDLName) -- ^ Where to store the result?
900 -> CoreSyn.CoreBndr -- ^ The function to apply
901 -> [Either CoreSyn.CoreExpr AST.Expr] -- ^ The arguments to apply
902 -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
903 -- ^ The corresponding VHDL concurrent statements and entities
905 genApplication dst f args = do
906 case Var.isGlobalId f of
908 top <- isTopLevelBinder f
911 -- Local binder that references a top level binding. Generate a
912 -- component instantiation.
913 signature <- getEntity f
914 args' <- argsToVHDLExprs args
915 let entity_id = ent_id signature
916 -- TODO: Using show here isn't really pretty, but we'll need some
917 -- unique-ish value...
918 let label = "comp_ins_" ++ (either (prettyShow . varToVHDLName) prettyShow) dst
919 let portmaps = mkAssocElems args' ((either varToVHDLName id) dst) signature
920 return ([mkComponentInst label entity_id portmaps], [f])
922 -- Not a top level binder, so this must be a local variable reference.
923 -- It should have a representable type (and thus, no arguments) and a
924 -- signal should be generated for it. Just generate an unconditional
926 f' <- MonadState.lift tsType $ varToVHDLExpr f
927 return $ ([mkUncondAssign dst f'], [])
929 case Var.idDetails f of
930 IdInfo.DataConWorkId dc -> case dst of
931 -- It's a datacon. Create a record from its arguments.
933 -- We have the bndr, so we can get at the type
934 labels <- MonadState.lift tsType $ getFieldLabels (Var.varType bndr)
935 args' <- argsToVHDLExprs args
936 return $ (zipWith mkassign labels $ args', [])
938 mkassign :: AST.VHDLId -> AST.Expr -> AST.ConcSm
940 let sel_name = mkSelectedName ((either varToVHDLName id) dst) label in
941 mkUncondAssign (Right sel_name) arg
942 Right _ -> error $ "\nGenerate.genApplication: Can't generate dataconstructor application without an original binder"
943 IdInfo.DataConWrapId dc -> case dst of
944 -- It's a datacon. Create a record from its arguments.
946 case (Map.lookup (varToString f) globalNameTable) of
947 Just (arg_count, builder) ->
948 if length args == arg_count then
951 error $ "\nGenerate.genApplication(DataConWrapId): Incorrect number of arguments to builtin function: " ++ pprString f ++ " Args: " ++ show args
952 Nothing -> error $ "\nGenerate.genApplication: Can't generate dataconwrapper: " ++ (show dc)
953 Right _ -> error $ "\nGenerate.genApplication: Can't generate dataconwrapper application without an original binder"
954 IdInfo.VanillaId -> do
955 -- It's a global value imported from elsewhere. These can be builtin
956 -- functions. Look up the function name in the name table and execute
957 -- the associated builder if there is any and the argument count matches
958 -- (this should always be the case if it typechecks, but just to be
960 case (Map.lookup (varToString f) globalNameTable) of
961 Just (arg_count, builder) ->
962 if length args == arg_count then
965 error $ "\nGenerate.genApplication(VanillaId): Incorrect number of arguments to builtin function: " ++ pprString f ++ " Args: " ++ show args
967 top <- isTopLevelBinder f
970 -- Local binder that references a top level binding. Generate a
971 -- component instantiation.
972 signature <- getEntity f
973 args' <- argsToVHDLExprs args
974 let entity_id = ent_id signature
975 -- TODO: Using show here isn't really pretty, but we'll need some
976 -- unique-ish value...
977 let label = "comp_ins_" ++ (either show prettyShow) dst
978 let portmaps = mkAssocElems args' ((either varToVHDLName id) dst) signature
979 return ([mkComponentInst label entity_id portmaps], [f])
981 -- Not a top level binder, so this must be a local variable reference.
982 -- It should have a representable type (and thus, no arguments) and a
983 -- signal should be generated for it. Just generate an unconditional
985 -- FIXME : I DONT KNOW IF THE ABOVE COMMENT HOLDS HERE, SO FOR NOW JUST ERROR!
986 -- f' <- MonadState.lift tsType $ varToVHDLExpr f
987 -- return $ ([mkUncondAssign dst f'], [])
988 error $ ("\nGenerate.genApplication(VanillaId): Using function from another module that is not a known builtin: " ++ (pprString f))
989 IdInfo.ClassOpId cls -> do
990 -- FIXME: Not looking for what instance this class op is called for
991 -- Is quite stupid of course.
992 case (Map.lookup (varToString f) globalNameTable) of
993 Just (arg_count, builder) ->
994 if length args == arg_count then
997 error $ "\nGenerate.genApplication(ClassOpId): Incorrect number of arguments to builtin function: " ++ pprString f ++ " Args: " ++ show args
998 Nothing -> error $ "\nGenerate.genApplication(ClassOpId): Using function from another module that is not a known builtin: " ++ pprString f
999 details -> error $ "\nGenerate.genApplication: Calling unsupported function " ++ pprString f ++ " with GlobalIdDetails " ++ pprString details
1001 -----------------------------------------------------------------------------
1002 -- Functions to generate functions dealing with vectors.
1003 -----------------------------------------------------------------------------
1005 -- Returns the VHDLId of the vector function with the given name for the given
1006 -- element type. Generates -- this function if needed.
1007 vectorFunId :: Type.Type -> String -> TypeSession AST.VHDLId
1008 vectorFunId el_ty fname = do
1009 let error_msg = "\nGenerate.vectorFunId: Can not construct vector function for element: " ++ pprString el_ty
1010 -- TODO: Handle the Nothing case?
1011 Just elemTM <- vhdl_ty error_msg el_ty
1012 -- TODO: This should not be duplicated from mk_vector_ty. Probably but it in
1013 -- the VHDLState or something.
1014 let vectorTM = mkVHDLExtId $ "vector_" ++ (AST.fromVHDLId elemTM)
1015 typefuns <- getA tsTypeFuns
1016 case Map.lookup (OrdType el_ty, fname) typefuns of
1017 -- Function already generated, just return it
1018 Just (id, _) -> return id
1019 -- Function not generated yet, generate it
1021 let functions = genUnconsVectorFuns elemTM vectorTM
1022 case lookup fname functions of
1024 modA tsTypeFuns $ Map.insert (OrdType el_ty, fname) (function_id, (fst body))
1025 mapM_ (vectorFunId el_ty) (snd body)
1027 Nothing -> error $ "\nGenerate.vectorFunId: I don't know how to generate vector function " ++ fname
1029 function_id = mkVHDLExtId fname
1031 genUnconsVectorFuns :: AST.TypeMark -- ^ type of the vector elements
1032 -> AST.TypeMark -- ^ type of the vector
1033 -> [(String, (AST.SubProgBody, [String]))]
1034 genUnconsVectorFuns elemTM vectorTM =
1035 [ (exId, (AST.SubProgBody exSpec [] [exExpr],[]))
1036 , (replaceId, (AST.SubProgBody replaceSpec [AST.SPVD replaceVar] [replaceExpr1,replaceExpr2,replaceRet],[]))
1037 , (lastId, (AST.SubProgBody lastSpec [] [lastExpr],[]))
1038 , (initId, (AST.SubProgBody initSpec [AST.SPVD initVar] [initExpr, initRet],[]))
1039 , (minimumId, (AST.SubProgBody minimumSpec [] [minimumExpr],[]))
1040 , (takeId, (AST.SubProgBody takeSpec [AST.SPVD takeVar] [takeExpr, takeRet],[minimumId]))
1041 , (dropId, (AST.SubProgBody dropSpec [AST.SPVD dropVar] [dropExpr, dropRet],[]))
1042 , (plusgtId, (AST.SubProgBody plusgtSpec [AST.SPVD plusgtVar] [plusgtExpr, plusgtRet],[]))
1043 , (emptyId, (AST.SubProgBody emptySpec [AST.SPVD emptyVar] [emptyExpr],[]))
1044 , (singletonId, (AST.SubProgBody singletonSpec [AST.SPVD singletonVar] [singletonRet],[]))
1045 , (copynId, (AST.SubProgBody copynSpec [AST.SPVD copynVar] [copynExpr],[]))
1046 , (selId, (AST.SubProgBody selSpec [AST.SPVD selVar] [selFor, selRet],[]))
1047 , (ltplusId, (AST.SubProgBody ltplusSpec [AST.SPVD ltplusVar] [ltplusExpr, ltplusRet],[]))
1048 , (plusplusId, (AST.SubProgBody plusplusSpec [AST.SPVD plusplusVar] [plusplusExpr, plusplusRet],[]))
1049 , (lengthTId, (AST.SubProgBody lengthTSpec [] [lengthTExpr],[]))
1050 , (shiftlId, (AST.SubProgBody shiftlSpec [AST.SPVD shiftlVar] [shiftlExpr, shiftlRet], [initId]))
1051 , (shiftrId, (AST.SubProgBody shiftrSpec [AST.SPVD shiftrVar] [shiftrExpr, shiftrRet], [tailId]))
1052 , (nullId, (AST.SubProgBody nullSpec [] [nullExpr], []))
1053 , (rotlId, (AST.SubProgBody rotlSpec [AST.SPVD rotlVar] [rotlExpr, rotlRet], [nullId, lastId, initId]))
1054 , (rotrId, (AST.SubProgBody rotrSpec [AST.SPVD rotrVar] [rotrExpr, rotrRet], [nullId, tailId, headId]))
1055 , (reverseId, (AST.SubProgBody reverseSpec [AST.SPVD reverseVar] [reverseFor, reverseRet], []))
1058 ixPar = AST.unsafeVHDLBasicId "ix"
1059 vecPar = AST.unsafeVHDLBasicId "vec"
1060 vec1Par = AST.unsafeVHDLBasicId "vec1"
1061 vec2Par = AST.unsafeVHDLBasicId "vec2"
1062 nPar = AST.unsafeVHDLBasicId "n"
1063 leftPar = AST.unsafeVHDLBasicId "nLeft"
1064 rightPar = AST.unsafeVHDLBasicId "nRight"
1065 iId = AST.unsafeVHDLBasicId "i"
1067 aPar = AST.unsafeVHDLBasicId "a"
1068 fPar = AST.unsafeVHDLBasicId "f"
1069 sPar = AST.unsafeVHDLBasicId "s"
1070 resId = AST.unsafeVHDLBasicId "res"
1071 exSpec = AST.Function (mkVHDLExtId exId) [AST.IfaceVarDec vecPar vectorTM,
1072 AST.IfaceVarDec ixPar unsignedTM] elemTM
1073 exExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NIndexed
1074 (AST.IndexedName (AST.NSimple vecPar) [genExprFCall (mkVHDLBasicId toIntegerId) (AST.PrimName $ AST.NSimple $ ixPar)]))
1075 replaceSpec = AST.Function (mkVHDLExtId replaceId) [ AST.IfaceVarDec vecPar vectorTM
1076 , AST.IfaceVarDec iPar unsignedTM
1077 , AST.IfaceVarDec aPar elemTM
1079 -- variable res : fsvec_x (0 to vec'length-1);
1082 (AST.SubtypeIn vectorTM
1083 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1084 [AST.ToRange (AST.PrimLit "0")
1085 (AST.PrimName (AST.NAttribute $
1086 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1087 (AST.PrimLit "1")) ]))
1089 -- res AST.:= vec(0 to i-1) & a & vec(i+1 to length'vec-1)
1090 replaceExpr1 = AST.NSimple resId AST.:= AST.PrimName (AST.NSimple vecPar)
1091 replaceExpr2 = AST.NIndexed (AST.IndexedName (AST.NSimple resId) [genExprFCall (mkVHDLBasicId toIntegerId) (AST.PrimName $ AST.NSimple $ iPar)]) AST.:= AST.PrimName (AST.NSimple aPar)
1092 replaceRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1093 vecSlice init last = AST.PrimName (AST.NSlice
1095 (AST.NSimple vecPar)
1096 (AST.ToRange init last)))
1097 lastSpec = AST.Function (mkVHDLExtId lastId) [AST.IfaceVarDec vecPar vectorTM] elemTM
1098 -- return vec(vec'length-1);
1099 lastExpr = AST.ReturnSm (Just $ (AST.PrimName $ AST.NIndexed (AST.IndexedName
1100 (AST.NSimple vecPar)
1101 [AST.PrimName (AST.NAttribute $
1102 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing)
1103 AST.:-: AST.PrimLit "1"])))
1104 initSpec = AST.Function (mkVHDLExtId initId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1105 -- variable res : fsvec_x (0 to vec'length-2);
1108 (AST.SubtypeIn vectorTM
1109 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1110 [AST.ToRange (AST.PrimLit "0")
1111 (AST.PrimName (AST.NAttribute $
1112 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1113 (AST.PrimLit "2")) ]))
1115 -- resAST.:= vec(0 to vec'length-2)
1116 initExpr = AST.NSimple resId AST.:= (vecSlice
1118 (AST.PrimName (AST.NAttribute $
1119 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing)
1120 AST.:-: AST.PrimLit "2"))
1121 initRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1122 minimumSpec = AST.Function (mkVHDLExtId minimumId) [AST.IfaceVarDec leftPar naturalTM,
1123 AST.IfaceVarDec rightPar naturalTM ] naturalTM
1124 minimumExpr = AST.IfSm ((AST.PrimName $ AST.NSimple leftPar) AST.:<: (AST.PrimName $ AST.NSimple rightPar))
1125 [AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple leftPar)]
1127 (Just $ AST.Else [minimumExprRet])
1128 where minimumExprRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple rightPar)
1129 takeSpec = AST.Function (mkVHDLExtId takeId) [AST.IfaceVarDec nPar naturalTM,
1130 AST.IfaceVarDec vecPar vectorTM ] vectorTM
1131 -- variable res : fsvec_x (0 to (minimum (n,vec'length))-1);
1132 minLength = AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId minimumId))
1133 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple nPar)
1134 ,Nothing AST.:=>: AST.ADExpr (AST.PrimName (AST.NAttribute $
1135 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))]
1138 (AST.SubtypeIn vectorTM
1139 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1140 [AST.ToRange (AST.PrimLit "0")
1142 (AST.PrimLit "1")) ]))
1144 -- res AST.:= vec(0 to n-1)
1145 takeExpr = AST.NSimple resId AST.:=
1146 (vecSlice (AST.PrimLit "0")
1147 (minLength AST.:-: AST.PrimLit "1"))
1148 takeRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1149 dropSpec = AST.Function (mkVHDLExtId dropId) [AST.IfaceVarDec nPar naturalTM,
1150 AST.IfaceVarDec vecPar vectorTM ] vectorTM
1151 -- variable res : fsvec_x (0 to vec'length-n-1);
1154 (AST.SubtypeIn vectorTM
1155 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1156 [AST.ToRange (AST.PrimLit "0")
1157 (AST.PrimName (AST.NAttribute $
1158 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1159 (AST.PrimName $ AST.NSimple nPar)AST.:-: (AST.PrimLit "1")) ]))
1161 -- res AST.:= vec(n to vec'length-1)
1162 dropExpr = AST.NSimple resId AST.:= (vecSlice
1163 (AST.PrimName $ AST.NSimple nPar)
1164 (AST.PrimName (AST.NAttribute $
1165 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing)
1166 AST.:-: AST.PrimLit "1"))
1167 dropRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1168 plusgtSpec = AST.Function (mkVHDLExtId plusgtId) [AST.IfaceVarDec aPar elemTM,
1169 AST.IfaceVarDec vecPar vectorTM] vectorTM
1170 -- variable res : fsvec_x (0 to vec'length);
1173 (AST.SubtypeIn vectorTM
1174 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1175 [AST.ToRange (AST.PrimLit "0")
1176 (AST.PrimName (AST.NAttribute $
1177 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))]))
1179 plusgtExpr = AST.NSimple resId AST.:=
1180 ((AST.PrimName $ AST.NSimple aPar) AST.:&:
1181 (AST.PrimName $ AST.NSimple vecPar))
1182 plusgtRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1183 emptySpec = AST.Function (mkVHDLExtId emptyId) [] vectorTM
1186 (AST.SubtypeIn vectorTM
1187 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1188 [AST.ToRange (AST.PrimLit "0") (AST.PrimLit "-1")]))
1190 emptyExpr = AST.ReturnSm (Just $ AST.PrimName (AST.NSimple resId))
1191 singletonSpec = AST.Function (mkVHDLExtId singletonId) [AST.IfaceVarDec aPar elemTM ]
1193 -- variable res : fsvec_x (0 to 0) := (others => a);
1196 (AST.SubtypeIn vectorTM
1197 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1198 [AST.ToRange (AST.PrimLit "0") (AST.PrimLit "0")]))
1199 (Just $ AST.Aggregate [AST.ElemAssoc (Just AST.Others)
1200 (AST.PrimName $ AST.NSimple aPar)])
1201 singletonRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1202 copynSpec = AST.Function (mkVHDLExtId copynId) [AST.IfaceVarDec nPar naturalTM,
1203 AST.IfaceVarDec aPar elemTM ] vectorTM
1204 -- variable res : fsvec_x (0 to n-1) := (others => a);
1207 (AST.SubtypeIn vectorTM
1208 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1209 [AST.ToRange (AST.PrimLit "0")
1210 ((AST.PrimName (AST.NSimple nPar)) AST.:-:
1211 (AST.PrimLit "1")) ]))
1212 (Just $ AST.Aggregate [AST.ElemAssoc (Just AST.Others)
1213 (AST.PrimName $ AST.NSimple aPar)])
1215 copynExpr = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1216 selSpec = AST.Function (mkVHDLExtId selId) [AST.IfaceVarDec fPar naturalTM,
1217 AST.IfaceVarDec sPar naturalTM,
1218 AST.IfaceVarDec nPar naturalTM,
1219 AST.IfaceVarDec vecPar vectorTM ] vectorTM
1220 -- variable res : fsvec_x (0 to n-1);
1223 (AST.SubtypeIn vectorTM
1224 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1225 [AST.ToRange (AST.PrimLit "0")
1226 ((AST.PrimName (AST.NSimple nPar)) AST.:-:
1227 (AST.PrimLit "1")) ])
1230 -- for i res'range loop
1231 -- res(i) := vec(f+i*s);
1233 selFor = AST.ForSM iId (AST.AttribRange $ AST.AttribName (AST.NSimple resId) (AST.NSimple $ rangeId) Nothing) [selAssign]
1234 -- res(i) := vec(f+i*s);
1235 selAssign = let origExp = AST.PrimName (AST.NSimple fPar) AST.:+:
1236 (AST.PrimName (AST.NSimple iId) AST.:*:
1237 AST.PrimName (AST.NSimple sPar)) in
1238 AST.NIndexed (AST.IndexedName (AST.NSimple resId) [AST.PrimName (AST.NSimple iId)]) AST.:=
1239 (AST.PrimName $ AST.NIndexed (AST.IndexedName (AST.NSimple vecPar) [origExp]))
1241 selRet = AST.ReturnSm (Just $ AST.PrimName (AST.NSimple resId))
1242 ltplusSpec = AST.Function (mkVHDLExtId ltplusId) [AST.IfaceVarDec vecPar vectorTM,
1243 AST.IfaceVarDec aPar elemTM] vectorTM
1244 -- variable res : fsvec_x (0 to vec'length);
1247 (AST.SubtypeIn vectorTM
1248 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1249 [AST.ToRange (AST.PrimLit "0")
1250 (AST.PrimName (AST.NAttribute $
1251 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))]))
1253 ltplusExpr = AST.NSimple resId AST.:=
1254 ((AST.PrimName $ AST.NSimple vecPar) AST.:&:
1255 (AST.PrimName $ AST.NSimple aPar))
1256 ltplusRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1257 plusplusSpec = AST.Function (mkVHDLExtId plusplusId) [AST.IfaceVarDec vec1Par vectorTM,
1258 AST.IfaceVarDec vec2Par vectorTM]
1260 -- variable res : fsvec_x (0 to vec1'length + vec2'length -1);
1263 (AST.SubtypeIn vectorTM
1264 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1265 [AST.ToRange (AST.PrimLit "0")
1266 (AST.PrimName (AST.NAttribute $
1267 AST.AttribName (AST.NSimple vec1Par) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:+:
1268 AST.PrimName (AST.NAttribute $
1269 AST.AttribName (AST.NSimple vec2Par) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1272 plusplusExpr = AST.NSimple resId AST.:=
1273 ((AST.PrimName $ AST.NSimple vec1Par) AST.:&:
1274 (AST.PrimName $ AST.NSimple vec2Par))
1275 plusplusRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1276 lengthTSpec = AST.Function (mkVHDLExtId lengthTId) [AST.IfaceVarDec vecPar vectorTM] naturalTM
1277 lengthTExpr = AST.ReturnSm (Just $ AST.PrimName (AST.NAttribute $
1278 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing))
1279 shiftlSpec = AST.Function (mkVHDLExtId shiftlId) [AST.IfaceVarDec vecPar vectorTM,
1280 AST.IfaceVarDec aPar elemTM ] vectorTM
1281 -- variable res : fsvec_x (0 to vec'length-1);
1284 (AST.SubtypeIn vectorTM
1285 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1286 [AST.ToRange (AST.PrimLit "0")
1287 (AST.PrimName (AST.NAttribute $
1288 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1289 (AST.PrimLit "1")) ]))
1291 -- res := a & init(vec)
1292 shiftlExpr = AST.NSimple resId AST.:=
1293 (AST.PrimName (AST.NSimple aPar) AST.:&:
1294 (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId initId))
1295 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]))
1296 shiftlRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1297 shiftrSpec = AST.Function (mkVHDLExtId shiftrId) [AST.IfaceVarDec vecPar vectorTM,
1298 AST.IfaceVarDec aPar elemTM ] vectorTM
1299 -- variable res : fsvec_x (0 to vec'length-1);
1302 (AST.SubtypeIn vectorTM
1303 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1304 [AST.ToRange (AST.PrimLit "0")
1305 (AST.PrimName (AST.NAttribute $
1306 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1307 (AST.PrimLit "1")) ]))
1309 -- res := tail(vec) & a
1310 shiftrExpr = AST.NSimple resId AST.:=
1311 ((AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId tailId))
1312 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]) AST.:&:
1313 (AST.PrimName (AST.NSimple aPar)))
1315 shiftrRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1316 nullSpec = AST.Function (mkVHDLExtId nullId) [AST.IfaceVarDec vecPar vectorTM] booleanTM
1317 -- return vec'length = 0
1318 nullExpr = AST.ReturnSm (Just $
1319 AST.PrimName (AST.NAttribute $
1320 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:=:
1322 rotlSpec = AST.Function (mkVHDLExtId rotlId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1323 -- variable res : fsvec_x (0 to vec'length-1);
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 -- if null(vec) then res := vec else res := last(vec) & init(vec)
1334 rotlExpr = AST.IfSm (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId nullId))
1335 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)])
1336 [AST.NSimple resId AST.:= (AST.PrimName $ AST.NSimple vecPar)]
1338 (Just $ AST.Else [rotlExprRet])
1340 AST.NSimple resId AST.:=
1341 ((AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId lastId))
1342 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]) AST.:&:
1343 (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId initId))
1344 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]))
1345 rotlRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1346 rotrSpec = AST.Function (mkVHDLExtId rotrId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1347 -- variable res : fsvec_x (0 to vec'length-1);
1350 (AST.SubtypeIn vectorTM
1351 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1352 [AST.ToRange (AST.PrimLit "0")
1353 (AST.PrimName (AST.NAttribute $
1354 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1355 (AST.PrimLit "1")) ]))
1357 -- if null(vec) then res := vec else res := tail(vec) & head(vec)
1358 rotrExpr = AST.IfSm (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId nullId))
1359 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)])
1360 [AST.NSimple resId AST.:= (AST.PrimName $ AST.NSimple vecPar)]
1362 (Just $ AST.Else [rotrExprRet])
1364 AST.NSimple resId AST.:=
1365 ((AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId tailId))
1366 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]) AST.:&:
1367 (AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLExtId headId))
1368 [Nothing AST.:=>: AST.ADExpr (AST.PrimName $ AST.NSimple vecPar)]))
1369 rotrRet = AST.ReturnSm (Just $ AST.PrimName $ AST.NSimple resId)
1370 reverseSpec = AST.Function (mkVHDLExtId reverseId) [AST.IfaceVarDec vecPar vectorTM] vectorTM
1373 (AST.SubtypeIn vectorTM
1374 (Just $ AST.ConstraintIndex $ AST.IndexConstraint
1375 [AST.ToRange (AST.PrimLit "0")
1376 (AST.PrimName (AST.NAttribute $
1377 AST.AttribName (AST.NSimple vecPar) (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1378 (AST.PrimLit "1")) ]))
1380 -- for i in 0 to res'range loop
1381 -- res(vec'length-i-1) := vec(i);
1384 AST.ForSM iId (AST.AttribRange $ AST.AttribName (AST.NSimple resId) (AST.NSimple $ rangeId) Nothing) [reverseAssign]
1385 -- res(vec'length-i-1) := vec(i);
1386 reverseAssign = AST.NIndexed (AST.IndexedName (AST.NSimple resId) [destExp]) AST.:=
1387 (AST.PrimName $ AST.NIndexed (AST.IndexedName (AST.NSimple vecPar)
1388 [AST.PrimName $ AST.NSimple iId]))
1389 where destExp = AST.PrimName (AST.NAttribute $ AST.AttribName (AST.NSimple vecPar)
1390 (AST.NSimple $ mkVHDLBasicId lengthId) Nothing) AST.:-:
1391 AST.PrimName (AST.NSimple iId) AST.:-:
1394 reverseRet = AST.ReturnSm (Just $ AST.PrimName (AST.NSimple resId))
1397 -----------------------------------------------------------------------------
1398 -- A table of builtin functions
1399 -----------------------------------------------------------------------------
1401 -- A function that generates VHDL for a builtin function
1402 type BuiltinBuilder =
1403 (Either CoreSyn.CoreBndr AST.VHDLName) -- ^ The destination signal and it's original type
1404 -> CoreSyn.CoreBndr -- ^ The function called
1405 -> [Either CoreSyn.CoreExpr AST.Expr] -- ^ The value arguments passed (excluding type and
1406 -- dictionary arguments).
1407 -> TranslatorSession ([AST.ConcSm], [CoreSyn.CoreBndr])
1408 -- ^ The corresponding VHDL concurrent statements and entities
1411 -- A map of a builtin function to VHDL function builder
1412 type NameTable = Map.Map String (Int, BuiltinBuilder )
1414 -- | The builtin functions we support. Maps a name to an argument count and a
1415 -- builder function.
1416 globalNameTable :: NameTable
1417 globalNameTable = Map.fromList
1418 [ (exId , (2, genFCall True ) )
1419 , (replaceId , (3, genFCall False ) )
1420 , (headId , (1, genFCall True ) )
1421 , (lastId , (1, genFCall True ) )
1422 , (tailId , (1, genFCall False ) )
1423 , (initId , (1, genFCall False ) )
1424 , (takeId , (2, genFCall False ) )
1425 , (dropId , (2, genFCall False ) )
1426 , (selId , (4, genFCall False ) )
1427 , (plusgtId , (2, genFCall False ) )
1428 , (ltplusId , (2, genFCall False ) )
1429 , (plusplusId , (2, genFCall False ) )
1430 , (mapId , (2, genMap ) )
1431 , (zipWithId , (3, genZipWith ) )
1432 , (foldlId , (3, genFoldl ) )
1433 , (foldrId , (3, genFoldr ) )
1434 , (zipId , (2, genZip ) )
1435 , (unzipId , (1, genUnzip ) )
1436 , (shiftlId , (2, genFCall False ) )
1437 , (shiftrId , (2, genFCall False ) )
1438 , (rotlId , (1, genFCall False ) )
1439 , (rotrId , (1, genFCall False ) )
1440 , (concatId , (1, genConcat ) )
1441 , (reverseId , (1, genFCall False ) )
1442 , (iteratenId , (3, genIteraten ) )
1443 , (iterateId , (2, genIterate ) )
1444 , (generatenId , (3, genGeneraten ) )
1445 , (generateId , (2, genGenerate ) )
1446 , (emptyId , (0, genFCall False ) )
1447 , (singletonId , (1, genFCall False ) )
1448 , (copynId , (2, genFCall False ) )
1449 , (copyId , (1, genCopy ) )
1450 , (lengthTId , (1, genFCall False ) )
1451 , (nullId , (1, genFCall False ) )
1452 , (hwxorId , (2, genOperator2 AST.Xor ) )
1453 , (hwandId , (2, genOperator2 AST.And ) )
1454 , (hworId , (2, genOperator2 AST.Or ) )
1455 , (hwnotId , (1, genOperator1 AST.Not ) )
1456 , (equalityId , (2, genOperator2 (AST.:=:) ) )
1457 , (inEqualityId , (2, genOperator2 (AST.:/=:) ) )
1458 , (ltId , (2, genOperator2 (AST.:<:) ) )
1459 , (lteqId , (2, genOperator2 (AST.:<=:) ) )
1460 , (gtId , (2, genOperator2 (AST.:>:) ) )
1461 , (gteqId , (2, genOperator2 (AST.:>=:) ) )
1462 , (boolOrId , (2, genOperator2 AST.Or ) )
1463 , (boolAndId , (2, genOperator2 AST.And ) )
1464 , (plusId , (2, genOperator2 (AST.:+:) ) )
1465 , (timesId , (2, genOperator2 (AST.:*:) ) )
1466 , (negateId , (1, genNegation ) )
1467 , (minusId , (2, genOperator2 (AST.:-:) ) )
1468 , (fromSizedWordId , (1, genFromSizedWord ) )
1469 , (fromIntegerId , (1, genFromInteger ) )
1470 , (resizeId , (1, genResize ) )
1471 , (sizedIntId , (1, genSizedInt ) )
1472 , (smallIntegerId , (1, genFromInteger ) )
1473 , (fstId , (1, genFst ) )
1474 , (sndId , (1, genSnd ) )
1475 , (blockRAMId , (5, genBlockRAM ) )
1476 --, (tfvecId , (1, genTFVec ) )
1477 , (minimumId , (2, error $ "\nFunction name: \"minimum\" is used internally, use another name"))