CristalCaveGem » LustreC

open Lustre_types

open Machine_code

open Format

open C_backend_common

open Utils

(* module type MODIFIERS_MAINSRC =

sig

end

module EmptyMod =

struct

end

module Mauve = functor (Mod: MODIFIERS_MAINSRC) -> 

struct

end

 *)

(********************************************************************************************)

(*                         Main related functions                                           *)

(********************************************************************************************)

let shell_name node = node ^ "Shell"

let core_name  node = node ^ "Core"

let fsm_name   node = node ^ "FSM"

(*                       Hearder                      *)

(* -------------------------------------------------- *)

  fprintf fmt "#include \"mauve/runtime.hpp\"@.";

  print_import_alloc_prototype fmt (Dep (true, basename, [], true (* assuming it is stateful*) ));

  pp_print_newline fmt ();

  pp_print_newline fmt ()

(*                       Shell                        *)

(* -------------------------------------------------- *)

let mauve_default_value v =

  else if Types.is_int_type v.var_type then "0"

  else if Types.is_real_type v.var_type then "0.0"

  else assert false

let print_mauve_default fmt mauve_machine v = 

  let v_name: string = v.var_id in

  let found = ref false in

  let annotations: expr_annot list = mauve_machine.mname.node_annot in

  List.iter

    (fun (al: expr_annot) ->

        List.iter

          (fun ((sl, e): string list * eexpr) -> if not !found then match sl with 

          | ["mauve"; "default"; name] ->

            if v_name = name then begin (pp_expr fmt e.eexpr_qfexpr); found := true; end

          | _ -> ();

          ) al.annots;

    ) annotations;

  if not !found then fprintf fmt "%s" (mauve_default_value v)

let print_mauve_shell fmt mauve_machine basename prog machines _ (*dependencies*) =

  let node_name = mauve_machine.mname.node_id in

  fprintf fmt "/*@.";

  fprintf fmt " *          SHELL@.";

  fprintf fmt " */@.";

  fprintf fmt "struct %s: public Shell {@." (shell_name node_name);

  (* in ports *)

  fprintf fmt "\t// InputPorts@.";

  List.iter

    (fun v ->

      let v_name = v.var_id in

      fprintf fmt ");@.";

  (* out ports *)

  fprintf fmt "\t// OutputPorts@.";

  List.iter

    (fun v ->

      let v_name = v.var_id in

  fprintf fmt "};@.";

  pp_print_newline fmt ()

let print_mauve_step fmt node_name mauve_machine =

  fprintf fmt "\t\t%s_step(" node_name;

  List.iter

    (fun v ->

      let v_name = v.var_id in

      fprintf fmt "%s, " v_name;

    ) mauve_machine.mstep.step_inputs;

  List.iter

    (fun v ->

      let v_name = v.var_id in

      fprintf fmt "&%s, " v_name;

    ) mauve_machine.mstep.step_outputs;

  fprintf fmt "node";

  fprintf fmt ");@."

(*                       Core                      *)

(* -------------------------------------------------- *)

  let node_name = mauve_machine.mname.node_id in

  fprintf fmt "/*@.";

  fprintf fmt " *          CORE@.";

  fprintf fmt " */@.";

  fprintf fmt "struct %s: public Core<%s> {@." (core_name node_name) (shell_name node_name);

  (* Attribute *)

  fprintf fmt "\tstruct %s_mem * node;@." node_name;

  pp_print_newline fmt ();

  (* Update *)

  fprintf fmt "\tvoid update() {@.";

  List.iter

    (fun v ->

      let v_name = v.var_id in

    ) mauve_machine.mstep.step_inputs;

  List.iter

    (fun v ->

      let v_name = v.var_id in

    ) mauve_machine.mstep.step_outputs;

  print_mauve_step fmt node_name mauve_machine;

  List.iter

    (fun v ->

      let v_name = v.var_id in

      fprintf fmt "\t\tport_%s.write(%s);@." v_name v_name;

    ) mauve_machine.mstep.step_outputs;

  fprintf fmt "\t}@.";

  pp_print_newline fmt ();

  (* Configure *)

  fprintf fmt "\tbool configure_hook() override {@.";

  fprintf fmt "\t\tnode = %s_alloc();@." node_name;

  fprintf fmt "\t\t%s_reset(node);@." node_name;

  fprintf fmt "\t\treturn true;@.";

  fprintf fmt "\t}@.";

  pp_print_newline fmt ();

  (* Cleanup *)

  fprintf fmt "\tvoid cleanup_hook() override {@.";

  fprintf fmt "\t\t%s_reset(node);@." node_name;

  fprintf fmt "};@.";

  pp_print_newline fmt ()

(*                       FSM                          *)

(* -------------------------------------------------- *)

let print_period_conversion fmt expr = (

  match expr.expr_desc with

    | Expr_tuple [p; u] -> (

       match u.expr_desc with 

       | Expr_ident "s"   -> fprintf fmt "sec_to_ns("; (pp_expr fmt p); fprintf fmt ")"

       | Expr_ident "ssec"-> fprintf fmt "sec_to_ns("; (pp_expr fmt p); fprintf fmt ")"

       | Expr_ident "ms"  -> fprintf fmt "ms_to_ns(" ; (pp_expr fmt p); fprintf fmt ")"

       | Expr_ident "ns"  -> pp_expr fmt p

       | _    -> assert false

      )

    | _ -> assert false

  )

let print_mauve_period fmt mauve_machine = 

  let found = ref false in

  let annotations: expr_annot list = mauve_machine.mname.node_annot in

  List.iter

    (fun (al: expr_annot) ->

        List.iter

          (fun ((sl, e): string list * eexpr) -> if not !found then match sl with 

           | ["mauve"; "period" ] -> (print_period_conversion fmt e.eexpr_qfexpr); found := true;

           | _ -> ();

          ) al.annots;

    ) annotations;

  if not !found then fprintf fmt "0"

let print_mauve_fsm fmt mauve_machine basename prog machines _ (*dependencies*) =

  let node_name = mauve_machine.mname.node_id in

  fprintf fmt "/*@.";

  fprintf fmt " *          FSM@.";

  fprintf fmt " */@.";

  fprintf fmt "struct %s: public FiniteStateMachine<%s, %s> {@." (fsm_name node_name) (shell_name node_name) (core_name node_name);

  (* Attribute *)

  fprintf fmt "\tExecState<%s>    & update  = mk_execution      (\"Update\" , &%s::update);@." (core_name node_name) (core_name node_name);

  print_mauve_period fmt mauve_machine;

  fprintf fmt ");@.";

  (* Configure *)

  fprintf fmt "\tbool configure_hook() override {@.";

  fprintf fmt "\t\tset_initial(update);@.";

  fprintf fmt "\t\tset_next(update, synchro);@.";

  fprintf fmt "\t\tset_next(synchro, update);@.";

  fprintf fmt "\t\treturn true;@.";

  fprintf fmt "\t}@.";

  pp_print_newline fmt ();

  (* Cleanup *)

  fprintf fmt "\tvoid cleanup_hook() override {@.";

  fprintf fmt "\t}@.";

  fprintf fmt "};@.";

  pp_print_newline fmt ()

(* Local Variables: *)

(* compile-command:"make -C ../../.." *)

(* End: *)