-- GHC API imports
import qualified Type
+import qualified CoreSyn
-- ForSyDe imports
import qualified ForSyDe.Backend.VHDL.AST as AST
-- Local imports
-import FlattenTypes
-import HsValueMap
-type VHDLSignalMapElement = (Maybe (AST.VHDLId, AST.TypeMark))
--- | A mapping from a haskell structure to the corresponding VHDL port
--- signature, or Nothing for values that do not translate to a port.
-type VHDLSignalMap = HsValueMap VHDLSignalMapElement
+-- A description of a port of an entity
+type Port = (AST.VHDLId, AST.TypeMark)
-- A description of a VHDL entity. Contains both the entity itself as well as
-- info on how to map a haskell value (argument / result) on to the entity's
-- ports.
data Entity = Entity {
ent_id :: AST.VHDLId, -- The id of the entity
- ent_args :: [VHDLSignalMap], -- A mapping of each function argument to port names
- ent_res :: VHDLSignalMap -- A mapping of the function result to port names
+ ent_args :: [Port], -- A mapping of each function argument to port names
+ ent_res :: Port -- A mapping of the function result to port names
} deriving (Show);
-- A orderable equivalent of CoreSyn's Type for use as a map key
compare (OrdType a) (OrdType b) = Type.tcCmpType a b
-- A map of a Core type to the corresponding type name
-type TypeMap = Map.Map OrdType (AST.VHDLId, AST.TypeDec)
+type TypeMap = Map.Map OrdType (AST.VHDLId, Either AST.TypeDef AST.SubtypeIn)
--- A map of a Haskell function to a hardware signature
-type SignatureMap = Map.Map HsFunction Entity
+-- A map of Elem types to the corresponding VHDL Id for the Vector
+type ElemTypeMap = Map.Map OrdType (AST.VHDLId, AST.TypeDef)
--- A map of a builtin function to VHDL function builder
-type NameTable = Map.Map String (Int, [AST.Expr] -> AST.Expr )
+-- A map of a vector Core element type and function name to the coressponding
+-- VHDLId of the function and the function body.
+type TypeFunMap = Map.Map (OrdType, String) (AST.VHDLId, AST.SubProgBody)
+
+-- A map of a Haskell function to a hardware signature
+type SignatureMap = Map.Map CoreSyn.CoreBndr Entity
-data VHDLSession = VHDLSession {
+data VHDLState = VHDLState {
-- | A map of Core type -> VHDL Type
- vsTypes_ :: TypeMap,
+ vsTypes_ :: TypeMap,
+ -- | A map of Elem types -> VHDL Vector Id
+ vsElemTypes_ :: ElemTypeMap,
+ -- | A map of vector Core type -> VHDL type function
+ vsTypeFuns_ :: TypeFunMap,
-- | A map of HsFunction -> hardware signature (entity name, port names,
-- etc.)
vsSignatures_ :: SignatureMap
}
-- Derive accessors
-$( Data.Accessor.Template.deriveAccessors ''VHDLSession )
+$( Data.Accessor.Template.deriveAccessors ''VHDLState )
-- | The state containing a VHDL Session
-type VHDLState = State.State VHDLSession
+type VHDLSession = State.State VHDLState
-- | A substate containing just the types
type TypeState = State.State TypeMap
+-- A function that generates VHDL for a builtin function
+type BuiltinBuilder =
+ (Either CoreSyn.CoreBndr AST.VHDLName) -- ^ The destination signal and it's original type
+ -> CoreSyn.CoreBndr -- ^ The function called
+ -> [Either CoreSyn.CoreExpr AST.Expr] -- ^ The value arguments passed (excluding type and
+ -- dictionary arguments).
+ -> VHDLSession [AST.ConcSm] -- ^ The resulting concurrent statements.
+
+-- A map of a builtin function to VHDL function builder
+type NameTable = Map.Map String (Int, BuiltinBuilder )
+
-- vim: set ts=8 sw=2 sts=2 expandtab: