-- GHDL Run Time (GRT) - wave dumper (GHW) module. -- Copyright (C) 2002 - 2014 Tristan Gingold -- -- GHDL is free software; you can redistribute it and/or modify it under -- the terms of the GNU General Public License as published by the Free -- Software Foundation; either version 2, or (at your option) any later -- version. -- -- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY -- WARRANTY; without even the implied warranty of MERCHANTABILITY or -- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- for more details. -- -- You should have received a copy of the GNU General Public License -- along with GCC; see the file COPYING. If not, write to the Free -- Software Foundation, 59 Temple Place - Suite 330, Boston, MA -- 02111-1307, USA. -- -- As a special exception, if other files instantiate generics from this -- unit, or you link this unit with other files to produce an executable, -- this unit does not by itself cause the resulting executable to be -- covered by the GNU General Public License. This exception does not -- however invalidate any other reasons why the executable file might be -- covered by the GNU Public License. with Ada.Unchecked_Conversion; with Ada.Unchecked_Deallocation; with Interfaces; use Interfaces; with System.Storage_Elements; -- Work around GNAT bug. pragma Unreferenced (System.Storage_Elements); with Grt.Types; use Grt.Types; with Grt.Avhpi; use Grt.Avhpi; with Grt.Stdio; use Grt.Stdio; with Grt.C; use Grt.C; with Grt.Errors; use Grt.Errors; with Grt.Astdio; use Grt.Astdio; with Grt.Hooks; use Grt.Hooks; with Grt.Table; with Grt.Avls; use Grt.Avls; with Grt.Rtis; use Grt.Rtis; with Grt.Rtis_Addr; use Grt.Rtis_Addr; with Grt.Rtis_Utils; with Grt.Rtis_Types; with Grt.Signals; use Grt.Signals; with System; use System; with Grt.Vstrings; use Grt.Vstrings; pragma Elaborate_All (Grt.Rtis_Utils); pragma Elaborate_All (Grt.Table); package body Grt.Waves is -- Waves filename. Wave_Filename : String_Access := null; -- Stream corresponding to the GHW filename. Wave_Stream : FILEs; Ghw_Hie_Design : constant Unsigned_8 := 1; Ghw_Hie_Block : constant Unsigned_8 := 3; Ghw_Hie_Generate_If : constant Unsigned_8 := 4; Ghw_Hie_Generate_For : constant Unsigned_8 := 5; Ghw_Hie_Instance : constant Unsigned_8 := 6; Ghw_Hie_Package : constant Unsigned_8 := 7; Ghw_Hie_Process : constant Unsigned_8 := 13; Ghw_Hie_Generic : constant Unsigned_8 := 14; Ghw_Hie_Eos : constant Unsigned_8 := 15; -- End of scope. Ghw_Hie_Signal : constant Unsigned_8 := 16; -- Signal. Ghw_Hie_Port_In : constant Unsigned_8 := 17; -- Port Ghw_Hie_Port_Out : constant Unsigned_8 := 18; -- Port Ghw_Hie_Port_Inout : constant Unsigned_8 := 19; -- Port Ghw_Hie_Port_Buffer : constant Unsigned_8 := 20; -- Port Ghw_Hie_Port_Linkage : constant Unsigned_8 := 21; -- Port pragma Unreferenced (Ghw_Hie_Design); pragma Unreferenced (Ghw_Hie_Generic); -- Return TRUE if OPT is an option for wave. function Wave_Option (Opt : String) return Boolean is F : constant Natural := Opt'First; begin if Opt'Length < 6 or else Opt (F .. F + 5) /= "--wave" then return False; end if; if Opt'Length > 6 and then Opt (F + 6) = '=' then -- Add an extra NUL character. Wave_Filename := new String (1 .. Opt'Length - 7 + 1); Wave_Filename (1 .. Opt'Length - 7) := Opt (F + 7 .. Opt'Last); Wave_Filename (Wave_Filename'Last) := NUL; return True; else return False; end if; end Wave_Option; procedure Wave_Help is begin Put_Line (" --wave=FILENAME dump signal values into a wave file"); end Wave_Help; procedure Wave_Put (Str : String) is R : size_t; pragma Unreferenced (R); begin R := fwrite (Str'Address, Str'Length, 1, Wave_Stream); end Wave_Put; procedure Wave_Putc (C : Character) is R : int; pragma Unreferenced (R); begin R := fputc (Character'Pos (C), Wave_Stream); end Wave_Putc; procedure Wave_Newline is begin Wave_Putc (Nl); end Wave_Newline; procedure Wave_Put_Byte (B : Unsigned_8) is V : Unsigned_8 := B; R : size_t; pragma Unreferenced (R); begin R := fwrite (V'Address, 1, 1, Wave_Stream); end Wave_Put_Byte; procedure Wave_Put_ULEB128 (Val : Ghdl_E32) is V : Ghdl_E32; R : Ghdl_E32; begin V := Val; loop R := V mod 128; V := V / 128; if V = 0 then Wave_Put_Byte (Unsigned_8 (R)); exit; else Wave_Put_Byte (Unsigned_8 (128 + R)); end if; end loop; end Wave_Put_ULEB128; procedure Wave_Put_SLEB128 (Val : Ghdl_I32) is function To_Ghdl_U32 is new Ada.Unchecked_Conversion (Ghdl_I32, Ghdl_U32); V : Ghdl_U32 := To_Ghdl_U32 (Val); -- function Shift_Right_Arithmetic (Value : Ghdl_U32; Amount : Natural) -- return Ghdl_U32; -- pragma Import (Intrinsic, Shift_Right_Arithmetic); R : Unsigned_8; begin loop R := Unsigned_8 (V mod 128); V := Shift_Right_Arithmetic (V, 7); if (V = 0 and (R and 16#40#) = 0) or (V = -1 and (R and 16#40#) /= 0) then Wave_Put_Byte (R); exit; else Wave_Put_Byte (R or 16#80#); end if; end loop; end Wave_Put_SLEB128; procedure Wave_Put_LSLEB128 (Val : Ghdl_I64) is function To_Ghdl_U64 is new Ada.Unchecked_Conversion (Ghdl_I64, Ghdl_U64); V : Ghdl_U64 := To_Ghdl_U64 (Val); R : Unsigned_8; begin loop R := Unsigned_8 (V mod 128); V := Shift_Right_Arithmetic (V, 7); if (V = 0 and (R and 16#40#) = 0) or (V = -1 and (R and 16#40#) /= 0) then Wave_Put_Byte (R); exit; else Wave_Put_Byte (R or 16#80#); end if; end loop; end Wave_Put_LSLEB128; procedure Wave_Put_I32 (Val : Ghdl_I32) is V : Ghdl_I32 := Val; R : size_t; pragma Unreferenced (R); begin R := fwrite (V'Address, 4, 1, Wave_Stream); end Wave_Put_I32; procedure Wave_Put_I64 (Val : Ghdl_I64) is V : Ghdl_I64 := Val; R : size_t; pragma Unreferenced (R); begin R := fwrite (V'Address, 8, 1, Wave_Stream); end Wave_Put_I64; procedure Wave_Put_F64 (F64 : Ghdl_F64) is V : Ghdl_F64 := F64; R : size_t; pragma Unreferenced (R); begin R := fwrite (V'Address, Ghdl_F64'Size / Storage_Unit, 1, Wave_Stream); end Wave_Put_F64; procedure Wave_Puts (Str : Ghdl_C_String) is begin Put (Wave_Stream, Str); end Wave_Puts; procedure Write_Value (Value : Value_Union; Mode : Mode_Type) is begin case Mode is when Mode_B2 => Wave_Put_Byte (Ghdl_B2'Pos (Value.B2)); when Mode_E8 => Wave_Put_Byte (Ghdl_E8'Pos (Value.E8)); when Mode_E32 => Wave_Put_ULEB128 (Value.E32); when Mode_I32 => Wave_Put_SLEB128 (Value.I32); when Mode_I64 => Wave_Put_LSLEB128 (Value.I64); when Mode_F64 => Wave_Put_F64 (Value.F64); end case; end Write_Value; subtype Section_Name is String (1 .. 4); type Header_Type is record Name : Section_Name; Pos : long; end record; package Section_Table is new Grt.Table (Table_Component_Type => Header_Type, Table_Index_Type => Natural, Table_Low_Bound => 1, Table_Initial => 16); -- Create a new section. -- Write the header in the file. -- Save the location for the directory. procedure Wave_Section (Name : Section_Name) is begin Section_Table.Append (Header_Type'(Name => Name, Pos => ftell (Wave_Stream))); Wave_Put (Name); end Wave_Section; procedure Wave_Write_Size_Order is begin -- Byte order, 1 byte. -- 0: bad, 1 : little-endian, 2 : big endian. declare type Byte_Arr is array (0 .. 3) of Unsigned_8; function To_Byte_Arr is new Ada.Unchecked_Conversion (Source => Unsigned_32, Target => Byte_Arr); B4 : constant Byte_Arr := To_Byte_Arr (16#11_22_33_44#); V : Unsigned_8; begin if B4 (0) = 16#11# then -- Big endian. V := 2; elsif B4 (0) = 16#44# then -- Little endian. V := 1; else -- Unknown endian. V := 0; end if; Wave_Put_Byte (V); end; -- Word size, 1 byte. Wave_Put_Byte (Integer'Size / 8); -- File offset size, 1 byte Wave_Put_Byte (1); -- Unused, must be zero (MBZ). Wave_Put_Byte (0); end Wave_Write_Size_Order; procedure Wave_Write_Directory is Pos : long; begin Pos := ftell (Wave_Stream); Wave_Section ("DIR" & NUL); Wave_Write_Size_Order; Wave_Put_I32 (Ghdl_I32 (Section_Table.Last)); for I in Section_Table.First .. Section_Table.Last loop Wave_Put (Section_Table.Table (I).Name); Wave_Put_I32 (Ghdl_I32 (Section_Table.Table (I).Pos)); end loop; Wave_Put ("EOD" & NUL); Wave_Section ("TAI" & NUL); Wave_Write_Size_Order; Wave_Put_I32 (Ghdl_I32 (Pos)); end Wave_Write_Directory; -- Called before elaboration. procedure Wave_Init is Mode : constant String := "wb" & NUL; begin if Wave_Filename = null then Wave_Stream := NULL_Stream; return; end if; if Wave_Filename.all = "-" & NUL then Wave_Stream := stdout; else Wave_Stream := fopen (Wave_Filename.all'Address, Mode'Address); if Wave_Stream = NULL_Stream then Error_C ("cannot open "); Error_E (Wave_Filename (Wave_Filename'First .. Wave_Filename'Last - 1)); return; end if; end if; end Wave_Init; procedure Write_File_Header is begin -- Magic, 9 bytes. Wave_Put ("GHDLwave" & Nl); -- Header length. Wave_Put_Byte (16); -- Version-major, 1 byte. Wave_Put_Byte (0); -- Version-minor, 1 byte. Wave_Put_Byte (1); Wave_Write_Size_Order; end Write_File_Header; procedure Avhpi_Error (Err : AvhpiErrorT) is pragma Unreferenced (Err); begin Put_Line ("Waves.Avhpi_Error!"); null; end Avhpi_Error; package Str_Table is new Grt.Table (Table_Component_Type => Ghdl_C_String, Table_Index_Type => AVL_Value, Table_Low_Bound => 1, Table_Initial => 16); package Str_AVL is new Grt.Table (Table_Component_Type => AVL_Node, Table_Index_Type => AVL_Nid, Table_Low_Bound => AVL_Root, Table_Initial => 16); Strings_Len : Natural := 0; function Str_Compare (L, R : AVL_Value) return Integer is Ls, Rs : Ghdl_C_String; begin Ls := Str_Table.Table (L); Rs := Str_Table.Table (R); if L = R then return 0; end if; return Strcmp (Ls, Rs); end Str_Compare; procedure Disp_Str_Avl (N : AVL_Nid) is begin Put (stdout, "node: "); Put_I32 (stdout, Ghdl_I32 (N)); New_Line (stdout); Put (stdout, " left: "); Put_I32 (stdout, Ghdl_I32 (Str_AVL.Table (N).Left)); New_Line (stdout); Put (stdout, " right: "); Put_I32 (stdout, Ghdl_I32 (Str_AVL.Table (N).Right)); New_Line (stdout); Put (stdout, " height: "); Put_I32 (stdout, Str_AVL.Table (N).Height); New_Line (stdout); Put (stdout, " str: "); --Put (stdout, Str_AVL.Table (N).Val); New_Line (stdout); end Disp_Str_Avl; pragma Unreferenced (Disp_Str_Avl); function Create_Str_Index (Str : Ghdl_C_String) return AVL_Value is Res : AVL_Nid; begin Str_Table.Append (Str); Str_AVL.Append (AVL_Node'(Val => Str_Table.Last, Left | Right => AVL_Nil, Height => 1)); Get_Node (AVL_Tree (Str_AVL.Table (Str_AVL.First .. Str_AVL.Last)), Str_Compare'Access, Str_AVL.Last, Res); if Res /= Str_AVL.Last then Str_AVL.Decrement_Last; Str_Table.Decrement_Last; else Strings_Len := Strings_Len + strlen (Str); end if; return Str_AVL.Table (Res).Val; end Create_Str_Index; pragma Unreferenced (Create_Str_Index); procedure Create_String_Id (Str : Ghdl_C_String) is Res : AVL_Nid; begin if Str = null then return; end if; Str_Table.Append (Str); Str_AVL.Append (AVL_Node'(Val => Str_Table.Last, Left | Right => AVL_Nil, Height => 1)); Get_Node (AVL_Tree (Str_AVL.Table (Str_AVL.First .. Str_AVL.Last)), Str_Compare'Access, Str_AVL.Last, Res); if Res /= Str_AVL.Last then Str_AVL.Decrement_Last; Str_Table.Decrement_Last; else Strings_Len := Strings_Len + strlen (Str); end if; end Create_String_Id; function Get_String (Str : Ghdl_C_String) return AVL_Value is H, L, M : AVL_Value; Diff : Integer; begin L := Str_Table.First; H := Str_Table.Last; loop M := (L + H) / 2; Diff := Strcmp (Str, Str_Table.Table (M)); if Diff = 0 then return M; elsif Diff < 0 then H := M - 1; else L := M + 1; end if; exit when L > H; end loop; return 0; end Get_String; procedure Write_String_Id (Str : Ghdl_C_String) is begin if Str = null then Wave_Put_Byte (0); else Wave_Put_ULEB128 (Ghdl_E32 (Get_String (Str))); end if; end Write_String_Id; type Type_Node is record Type_Rti : Ghdl_Rti_Access; Context : Rti_Context; end record; package Types_Table is new Grt.Table (Table_Component_Type => Type_Node, Table_Index_Type => AVL_Value, Table_Low_Bound => 1, Table_Initial => 16); package Types_AVL is new Grt.Table (Table_Component_Type => AVL_Node, Table_Index_Type => AVL_Nid, Table_Low_Bound => AVL_Root, Table_Initial => 16); function Type_Compare (L, R : AVL_Value) return Integer is function To_Ia is new Ada.Unchecked_Conversion (Ghdl_Rti_Access, Integer_Address); function "<" (L, R : Ghdl_Rti_Access) return Boolean is begin return To_Ia (L) < To_Ia (R); end "<"; Ls : Type_Node renames Types_Table.Table (L); Rs : Type_Node renames Types_Table.Table (R); begin if Ls.Type_Rti /= Rs.Type_Rti then if Ls.Type_Rti < Rs.Type_Rti then return -1; else return 1; end if; end if; if Ls.Context.Block /= Rs.Context.Block then if Ls.Context.Block < Rs.Context.Block then return -1; else return +1; end if; end if; if Ls.Context.Base /= Rs.Context.Base then if Ls.Context.Base < Rs.Context.Base then return -1; else return +1; end if; end if; return 0; end Type_Compare; -- Try to find type (RTI, CTXT) in the types_AVL table. -- The first step is to canonicalize CTXT, so that it is the CTXT of -- the type (and not a sub-scope of it). procedure Find_Type (Rti : Ghdl_Rti_Access; Ctxt : Rti_Context; N_Ctxt : out Rti_Context; Id : out AVL_Nid) is Depth : Ghdl_Rti_Depth; begin case Rti.Kind is when Ghdl_Rtik_Type_B2 | Ghdl_Rtik_Type_E8 => N_Ctxt := Null_Context; when Ghdl_Rtik_Port | Ghdl_Rtik_Signal => N_Ctxt := Ctxt; when others => -- Compute the canonical context. if Rti.Max_Depth < Rti.Depth then Internal_Error ("grt.waves.find_type"); end if; Depth := Rti.Max_Depth; if Depth = 0 or else Ctxt.Block = null then N_Ctxt := Null_Context; else N_Ctxt := Ctxt; while N_Ctxt.Block.Depth > Depth loop N_Ctxt := Get_Parent_Context (N_Ctxt); end loop; end if; end case; -- If the type is already known, return now. -- Otherwise, ID is set to AVL_Nil. Types_Table.Append (Type_Node'(Type_Rti => Rti, Context => N_Ctxt)); Id := Find_Node (AVL_Tree (Types_AVL.Table (Types_AVL.First .. Types_AVL.Last)), Type_Compare'Access, Types_Table.Last); Types_Table.Decrement_Last; end Find_Type; procedure Write_Type_Id (Tid : AVL_Nid) is begin Wave_Put_ULEB128 (Ghdl_E32 (Types_AVL.Table (Tid).Val)); end Write_Type_Id; procedure Write_Type_Id (Rti : Ghdl_Rti_Access; Ctxt : Rti_Context) is N_Ctxt : Rti_Context; Res : AVL_Nid; begin Find_Type (Rti, Ctxt, N_Ctxt, Res); if Res = AVL_Nil then -- raise Program_Error; Internal_Error ("write_type_id"); end if; Write_Type_Id (Res); end Write_Type_Id; procedure Add_Type (Rti : Ghdl_Rti_Access; Ctxt : Rti_Context) is Res : AVL_Nid; begin -- Then, create the type. Types_Table.Append (Type_Node'(Type_Rti => Rti, Context => Ctxt)); Types_AVL.Append (AVL_Node'(Val => Types_Table.Last, Left | Right => AVL_Nil, Height => 1)); Get_Node (AVL_Tree (Types_AVL.Table (Types_AVL.First .. Types_AVL.Last)), Type_Compare'Access, Types_AVL.Last, Res); if Res /= Types_AVL.Last then --raise Program_Error; Internal_Error ("wave.create_type(2)"); end if; end Add_Type; procedure Create_Type (Rti : Ghdl_Rti_Access; Ctxt : Rti_Context) is N_Ctxt : Rti_Context; Res : AVL_Nid; begin Find_Type (Rti, Ctxt, N_Ctxt, Res); if Res /= AVL_Nil then return; end if; -- First, create all the types it depends on. case Rti.Kind is when Ghdl_Rtik_Type_B2 | Ghdl_Rtik_Type_E8 => declare Enum : Ghdl_Rtin_Type_Enum_Acc; begin Enum := To_Ghdl_Rtin_Type_Enum_Acc (Rti); Create_String_Id (Enum.Name); for I in 1 .. Enum.Nbr loop Create_String_Id (Enum.Names (I - 1)); end loop; end; when Ghdl_Rtik_Subtype_Array => declare Arr : Ghdl_Rtin_Subtype_Array_Acc; B_Ctxt : Rti_Context; begin Arr := To_Ghdl_Rtin_Subtype_Array_Acc (Rti); Create_String_Id (Arr.Name); if Rti_Complex_Type (Rti) then B_Ctxt := Ctxt; else B_Ctxt := N_Ctxt; end if; Create_Type (To_Ghdl_Rti_Access (Arr.Basetype), B_Ctxt); end; when Ghdl_Rtik_Type_Array => declare Arr : Ghdl_Rtin_Type_Array_Acc; begin Arr := To_Ghdl_Rtin_Type_Array_Acc (Rti); Create_String_Id (Arr.Name); Create_Type (Arr.Element, N_Ctxt); for I in 1 .. Arr.Nbr_Dim loop Create_Type (Arr.Indexes (I - 1), N_Ctxt); end loop; end; when Ghdl_Rtik_Subtype_Scalar => declare Sub : Ghdl_Rtin_Subtype_Scalar_Acc; begin Sub := To_Ghdl_Rtin_Subtype_Scalar_Acc (Rti); Create_String_Id (Sub.Name); Create_Type (Sub.Basetype, N_Ctxt); end; when Ghdl_Rtik_Type_I32 | Ghdl_Rtik_Type_I64 | Ghdl_Rtik_Type_F64 => declare Base : Ghdl_Rtin_Type_Scalar_Acc; begin Base := To_Ghdl_Rtin_Type_Scalar_Acc (Rti); Create_String_Id (Base.Name); end; when Ghdl_Rtik_Type_P32 | Ghdl_Rtik_Type_P64 => declare Base : Ghdl_Rtin_Type_Physical_Acc; Unit_Name : Ghdl_C_String; begin Base := To_Ghdl_Rtin_Type_Physical_Acc (Rti); Create_String_Id (Base.Name); for I in 1 .. Base.Nbr loop Unit_Name := Rtis_Utils.Get_Physical_Unit_Name (Base.Units (I - 1)); Create_String_Id (Unit_Name); end loop; end; when Ghdl_Rtik_Type_Record => declare Rec : Ghdl_Rtin_Type_Record_Acc; El : Ghdl_Rtin_Element_Acc; begin Rec := To_Ghdl_Rtin_Type_Record_Acc (Rti); Create_String_Id (Rec.Name); for I in 1 .. Rec.Nbrel loop El := To_Ghdl_Rtin_Element_Acc (Rec.Elements (I - 1)); Create_String_Id (El.Name); Create_Type (El.Eltype, N_Ctxt); end loop; end; when others => Internal_Error ("wave.create_type"); -- Internal_Error ("wave.create_type: does not handle " & -- Ghdl_Rtik'Image (Rti.Kind)); end case; -- Then, create the type. Add_Type (Rti, N_Ctxt); end Create_Type; procedure Create_Object_Type (Obj : VhpiHandleT) is Obj_Type : VhpiHandleT; Error : AvhpiErrorT; Rti : Ghdl_Rti_Access; begin -- Extract type of the signal. Vhpi_Handle (VhpiSubtype, Obj, Obj_Type, Error); if Error /= AvhpiErrorOk then Avhpi_Error (Error); return; end if; Rti := Avhpi_Get_Rti (Obj_Type); Create_Type (Rti, Avhpi_Get_Context (Obj_Type)); -- The the signal type is an unconstrained array, also put the object -- in the type AVL. -- The real type will be written to the file. if Rti.Kind = Ghdl_Rtik_Type_Array then Add_Type (Avhpi_Get_Rti (Obj), Avhpi_Get_Context (Obj)); end if; end Create_Object_Type; procedure Write_Object_Type (Obj : VhpiHandleT) is Obj_Type : VhpiHandleT; Error : AvhpiErrorT; Rti : Ghdl_Rti_Access; begin -- Extract type of the signal. Vhpi_Handle (VhpiSubtype, Obj, Obj_Type, Error); if Error /= AvhpiErrorOk then Avhpi_Error (Error); return; end if; Rti := Avhpi_Get_Rti (Obj_Type); if Rti.Kind = Ghdl_Rtik_Type_Array then Write_Type_Id (Avhpi_Get_Rti (Obj), Avhpi_Get_Context (Obj)); else Write_Type_Id (Rti, Avhpi_Get_Context (Obj_Type)); end if; end Write_Object_Type; procedure Create_Generate_Type (Gen : VhpiHandleT) is Iterator : VhpiHandleT; Error : AvhpiErrorT; begin -- Extract the iterator. Vhpi_Handle (VhpiIterScheme, Gen, Iterator, Error); if Error /= AvhpiErrorOk then Avhpi_Error (Error); return; end if; Create_Object_Type (Iterator); end Create_Generate_Type; procedure Write_Generate_Type_And_Value (Gen : VhpiHandleT) is Iter : VhpiHandleT; Iter_Type : VhpiHandleT; Error : AvhpiErrorT; Addr : Address; Mode : Mode_Type; Rti : Ghdl_Rti_Access; begin -- Extract the iterator. Vhpi_Handle (VhpiIterScheme, Gen, Iter, Error); if Error /= AvhpiErrorOk then Avhpi_Error (Error); return; end if; Write_Object_Type (Iter); Vhpi_Handle (VhpiSubtype, Iter, Iter_Type, Error); if Error /= AvhpiErrorOk then Avhpi_Error (Error); return; end if; Rti := Avhpi_Get_Rti (Iter_Type); Addr := Avhpi_Get_Address (Iter); case Get_Base_Type (Rti).Kind is when Ghdl_Rtik_Type_B2 => Mode := Mode_B2; when Ghdl_Rtik_Type_E8 => Mode := Mode_E8; when Ghdl_Rtik_Type_E32 => Mode := Mode_E32; when Ghdl_Rtik_Type_I32 => Mode := Mode_I32; when Ghdl_Rtik_Type_I64 => Mode := Mode_I64; when Ghdl_Rtik_Type_F64 => Mode := Mode_F64; when others => Internal_Error ("bad iterator type"); end case; Write_Value (To_Ghdl_Value_Ptr (Addr).all, Mode); end Write_Generate_Type_And_Value; type Step_Type is (Step_Name, Step_Hierarchy); Nbr_Scopes : Natural := 0; Nbr_Scope_Signals : Natural := 0; Nbr_Dumped_Signals : Natural := 0; -- This is only valid during write_hierarchy. function Get_Signal_Number (Sig : Ghdl_Signal_Ptr) return Natural is function To_Integer_Address is new Ada.Unchecked_Conversion (Ghdl_Signal_Ptr, Integer_Address); begin return Natural (To_Integer_Address (Sig.Alink)); end Get_Signal_Number; procedure Write_Signal_Number (Val_Addr : Address; Val_Name : Vstring; Val_Type : Ghdl_Rti_Access; Param_Type : Natural) is pragma Unreferenced (Val_Name); pragma Unreferenced (Val_Type); pragma Unreferenced (Param_Type); Num : Natural; function To_Ghdl_Signal_Ptr is new Ada.Unchecked_Conversion (Source => Integer_Address, Target => Ghdl_Signal_Ptr); Sig : Ghdl_Signal_Ptr; begin -- Convert to signal. Sig := To_Ghdl_Signal_Ptr (To_Addr_Acc (Val_Addr).all); -- Get signal number. Num := Get_Signal_Number (Sig); -- If the signal number is 0, then assign a valid signal number. if Num = 0 then Nbr_Dumped_Signals := Nbr_Dumped_Signals + 1; Sig.Alink := To_Ghdl_Signal_Ptr (Integer_Address (Nbr_Dumped_Signals)); Num := Nbr_Dumped_Signals; end if; -- Do the real job: write the signal number. Wave_Put_ULEB128 (Ghdl_E32 (Num)); end Write_Signal_Number; procedure Foreach_Scalar_Signal_Number is new Grt.Rtis_Utils.Foreach_Scalar (Param_Type => Natural, Process => Write_Signal_Number); procedure Write_Signal_Numbers (Decl : VhpiHandleT) is Ctxt : Rti_Context; Sig : Ghdl_Rtin_Object_Acc; begin Ctxt := Avhpi_Get_Context (Decl); Sig := To_Ghdl_Rtin_Object_Acc (Avhpi_Get_Rti (Decl)); Foreach_Scalar_Signal_Number (Ctxt, Sig.Obj_Type, Loc_To_Addr (Sig.Common.Depth, Sig.Loc, Ctxt), True, 0); end Write_Signal_Numbers; procedure Write_Hierarchy_El (Decl : VhpiHandleT) is Mode2hie : constant array (VhpiModeT) of Unsigned_8 := (VhpiErrorMode => Ghw_Hie_Signal, VhpiInMode => Ghw_Hie_Port_In, VhpiOutMode => Ghw_Hie_Port_Out, VhpiInoutMode => Ghw_Hie_Port_Inout, VhpiBufferMode => Ghw_Hie_Port_Buffer, VhpiLinkageMode => Ghw_Hie_Port_Linkage); V : Unsigned_8; begin case Vhpi_Get_Kind (Decl) is when VhpiPortDeclK => V := Mode2hie (Vhpi_Get_Mode (Decl)); when VhpiSigDeclK => V := Ghw_Hie_Signal; when VhpiForGenerateK => V := Ghw_Hie_Generate_For; when VhpiIfGenerateK => V := Ghw_Hie_Generate_If; when VhpiBlockStmtK => V := Ghw_Hie_Block; when VhpiCompInstStmtK => V := Ghw_Hie_Instance; when VhpiProcessStmtK => V := Ghw_Hie_Process; when VhpiPackInstK => V := Ghw_Hie_Package; when VhpiRootInstK => V := Ghw_Hie_Instance; when others => --raise Program_Error; Internal_Error ("write_hierarchy_el"); end case; Wave_Put_Byte (V); Write_String_Id (Avhpi_Get_Base_Name (Decl)); case Vhpi_Get_Kind (Decl) is when VhpiPortDeclK | VhpiSigDeclK => Write_Object_Type (Decl); Write_Signal_Numbers (Decl); when VhpiForGenerateK => Write_Generate_Type_And_Value (Decl); when others => null; end case; end Write_Hierarchy_El; -- Create a hierarchy block. procedure Wave_Put_Hierarchy_Block (Inst : VhpiHandleT; Step : Step_Type); procedure Wave_Put_Hierarchy_1 (Inst : VhpiHandleT; Step : Step_Type) is Decl_It : VhpiHandleT; Decl : VhpiHandleT; Error : AvhpiErrorT; begin Vhpi_Iterator (VhpiDecls, Inst, Decl_It, Error); if Error /= AvhpiErrorOk then Avhpi_Error (Error); return; end if; -- Extract signals. loop Vhpi_Scan (Decl_It, Decl, Error); exit when Error = AvhpiErrorIteratorEnd; if Error /= AvhpiErrorOk then Avhpi_Error (Error); return; end if; case Vhpi_Get_Kind (Decl) is when VhpiPortDeclK | VhpiSigDeclK => case Step is when Step_Name => Create_String_Id (Avhpi_Get_Base_Name (Decl)); Nbr_Scope_Signals := Nbr_Scope_Signals + 1; Create_Object_Type (Decl); when Step_Hierarchy => Write_Hierarchy_El (Decl); end case; --Wave_Put_Name (Decl); --Wave_Newline; when others => null; end case; end loop; -- No sub-scopes for packages. if Vhpi_Get_Kind (Inst) = VhpiPackInstK then return; end if; -- Extract sub-scopes. Vhpi_Iterator (VhpiInternalRegions, Inst, Decl_It, Error); if Error /= AvhpiErrorOk then Avhpi_Error (Error); return; end if; loop Vhpi_Scan (Decl_It, Decl, Error); exit when Error = AvhpiErrorIteratorEnd; if Error /= AvhpiErrorOk then Avhpi_Error (Error); return; end if; Nbr_Scopes := Nbr_Scopes + 1; case Vhpi_Get_Kind (Decl) is when VhpiIfGenerateK | VhpiForGenerateK | VhpiBlockStmtK | VhpiCompInstStmtK => Wave_Put_Hierarchy_Block (Decl, Step); when VhpiProcessStmtK => case Step is when Step_Name => Create_String_Id (Avhpi_Get_Base_Name (Decl)); when Step_Hierarchy => Write_Hierarchy_El (Decl); end case; when others => Internal_Error ("wave_put_hierarchy_1"); -- Wave_Put ("unknown "); -- Wave_Put (VhpiClassKindT'Image (Vhpi_Get_Kind (Decl))); -- Wave_Newline; end case; end loop; end Wave_Put_Hierarchy_1; procedure Wave_Put_Hierarchy_Block (Inst : VhpiHandleT; Step : Step_Type) is begin case Step is when Step_Name => Create_String_Id (Avhpi_Get_Base_Name (Inst)); if Vhpi_Get_Kind (Inst) = VhpiForGenerateK then Create_Generate_Type (Inst); end if; when Step_Hierarchy => Write_Hierarchy_El (Inst); end case; Wave_Put_Hierarchy_1 (Inst, Step); if Step = Step_Hierarchy then Wave_Put_Byte (Ghw_Hie_Eos); end if; end Wave_Put_Hierarchy_Block; procedure Wave_Put_Hierarchy (Root : VhpiHandleT; Step : Step_Type) is Pack_It : VhpiHandleT; Pack : VhpiHandleT; Error : AvhpiErrorT; begin -- First packages. Get_Package_Inst (Pack_It); loop Vhpi_Scan (Pack_It, Pack, Error); exit when Error = AvhpiErrorIteratorEnd; if Error /= AvhpiErrorOk then Avhpi_Error (Error); return; end if; Wave_Put_Hierarchy_Block (Pack, Step); end loop; -- Then top entity. Wave_Put_Hierarchy_Block (Root, Step); end Wave_Put_Hierarchy; procedure Disp_Str_AVL (Str : AVL_Nid; Indent : Natural) is begin if Str = AVL_Nil then return; end if; Disp_Str_AVL (Str_AVL.Table (Str).Left, Indent + 1); for I in 1 .. Indent loop Wave_Putc (' '); end loop; Wave_Puts (Str_Table.Table (Str_AVL.Table (Str).Val)); -- Wave_Putc ('('); -- Put_I32 (Wave_Stream, Ghdl_I32 (Str)); -- Wave_Putc (')'); -- Put_I32 (Wave_Stream, Get_Height (Str)); Wave_Newline; Disp_Str_AVL (Str_AVL.Table (Str).Right, Indent + 1); end Disp_Str_AVL; procedure Write_Strings is begin -- Wave_Put ("AVL height: "); -- Put_I32 (Wave_Stream, Ghdl_I32 (Check_AVL (Str_Root))); -- Wave_Newline; Wave_Put ("strings length: "); Put_I32 (Wave_Stream, Ghdl_I32 (Strings_Len)); Wave_Newline; Disp_Str_AVL (AVL_Root, 0); fflush (Wave_Stream); end Write_Strings; pragma Unreferenced (Write_Strings); procedure Freeze_Strings is type Str_Table1_Type is array (1 .. Str_Table.Last) of Ghdl_C_String; type Str_Table1_Acc is access Str_Table1_Type; Idx : AVL_Value; Table1 : Str_Table1_Acc; procedure Free is new Ada.Unchecked_Deallocation (Str_Table1_Type, Str_Table1_Acc); procedure Store_Strings (N : AVL_Nid) is begin if N = AVL_Nil then return; end if; Store_Strings (Str_AVL.Table (N).Left); Table1 (Idx) := Str_Table.Table (Str_AVL.Table (N).Val); Idx := Idx + 1; Store_Strings (Str_AVL.Table (N).Right); end Store_Strings; begin Table1 := new Str_Table1_Type; Idx := 1; Store_Strings (AVL_Root); Str_Table.Release; Str_AVL.Free; for I in Table1.all'Range loop Str_Table.Table (I) := Table1 (I); end loop; Free (Table1); end Freeze_Strings; procedure Write_Strings_Compress is Last : Ghdl_C_String; V : Ghdl_C_String; L : Natural; L1 : Natural; begin Wave_Section ("STR" & NUL); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_I32 (Ghdl_I32 (Str_Table.Last)); Wave_Put_I32 (Ghdl_I32 (Strings_Len)); for I in Str_Table.First .. Str_Table.Last loop V := Str_Table.Table (I); if I = Str_Table.First then L := 1; else Last := Str_Table.Table (I - 1); for I in Positive loop if V (I) /= Last (I) then L := I; exit; end if; end loop; L1 := L - 1; loop if L1 >= 32 then Wave_Put_Byte (Unsigned_8 (L1 mod 32) + 16#80#); else Wave_Put_Byte (Unsigned_8 (L1 mod 32)); end if; L1 := L1 / 32; exit when L1 = 0; end loop; end if; if Boolean'(False) then Put ("string "); Put_I32 (stdout, Ghdl_I32 (I)); Put (": "); Put (V); New_Line; end if; loop exit when V (L) = NUL; Wave_Putc (V (L)); L := L + 1; end loop; end loop; -- Last string length. Wave_Put_Byte (0); -- End marker. Wave_Put ("EOS" & NUL); end Write_Strings_Compress; procedure Write_Range (Rti : Ghdl_Rti_Access; Rng : Ghdl_Range_Ptr) is Kind : Ghdl_Rtik; begin Kind := Rti.Kind; if Kind = Ghdl_Rtik_Subtype_Scalar then Kind := To_Ghdl_Rtin_Subtype_Scalar_Acc (Rti).Basetype.Kind; end if; case Kind is when Ghdl_Rtik_Type_B2 => Wave_Put_Byte (Ghdl_Rtik'Pos (Kind) + Ghdl_Dir_Type'Pos (Rng.B2.Dir) * 16#80#); Wave_Put_Byte (Ghdl_B2'Pos (Rng.B2.Left)); Wave_Put_Byte (Ghdl_B2'Pos (Rng.B2.Right)); when Ghdl_Rtik_Type_E8 => Wave_Put_Byte (Ghdl_Rtik'Pos (Kind) + Ghdl_Dir_Type'Pos (Rng.E8.Dir) * 16#80#); Wave_Put_Byte (Unsigned_8 (Rng.E8.Left)); Wave_Put_Byte (Unsigned_8 (Rng.E8.Right)); when Ghdl_Rtik_Type_I32 | Ghdl_Rtik_Type_P32 => Wave_Put_Byte (Ghdl_Rtik'Pos (Kind) + Ghdl_Dir_Type'Pos (Rng.I32.Dir) * 16#80#); Wave_Put_SLEB128 (Rng.I32.Left); Wave_Put_SLEB128 (Rng.I32.Right); when Ghdl_Rtik_Type_P64 | Ghdl_Rtik_Type_I64 => Wave_Put_Byte (Ghdl_Rtik'Pos (Kind) + Ghdl_Dir_Type'Pos (Rng.P64.Dir) * 16#80#); Wave_Put_LSLEB128 (Rng.P64.Left); Wave_Put_LSLEB128 (Rng.P64.Right); when Ghdl_Rtik_Type_F64 => Wave_Put_Byte (Ghdl_Rtik'Pos (Kind) + Ghdl_Dir_Type'Pos (Rng.F64.Dir) * 16#80#); Wave_Put_F64 (Rng.F64.Left); Wave_Put_F64 (Rng.F64.Right); when others => Internal_Error ("waves.write_range: unhandled kind"); --Internal_Error ("waves.write_range: unhandled kind " -- & Ghdl_Rtik'Image (Kind)); end case; end Write_Range; procedure Write_Types is Rti : Ghdl_Rti_Access; Ctxt : Rti_Context; begin Wave_Section ("TYP" & NUL); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_I32 (Ghdl_I32 (Types_Table.Last)); for I in Types_Table.First .. Types_Table.Last loop Rti := Types_Table.Table (I).Type_Rti; Ctxt := Types_Table.Table (I).Context; if Rti.Kind = Ghdl_Rtik_Signal or Rti.Kind = Ghdl_Rtik_Port then declare Obj_Rti : constant Ghdl_Rtin_Object_Acc := To_Ghdl_Rtin_Object_Acc (Rti); Arr : constant Ghdl_Rtin_Type_Array_Acc := To_Ghdl_Rtin_Type_Array_Acc (Obj_Rti.Obj_Type); Addr : Ghdl_Uc_Array_Acc; begin Wave_Put_Byte (Ghdl_Rtik'Pos (Ghdl_Rtik_Subtype_Array)); Write_String_Id (null); Write_Type_Id (Obj_Rti.Obj_Type, Ctxt); Addr := To_Ghdl_Uc_Array_Acc (Loc_To_Addr (Rti.Depth, Obj_Rti.Loc, Ctxt)); declare Rngs : Ghdl_Range_Array (0 .. Arr.Nbr_Dim - 1); begin Bound_To_Range (Addr.Bounds, Arr, Rngs); for I in Rngs'Range loop Write_Range (Arr.Indexes (I), Rngs (I)); end loop; end; end; else -- Kind. Wave_Put_Byte (Ghdl_Rtik'Pos (Rti.Kind)); case Rti.Kind is when Ghdl_Rtik_Type_B2 | Ghdl_Rtik_Type_E8 => declare Enum : Ghdl_Rtin_Type_Enum_Acc; begin Enum := To_Ghdl_Rtin_Type_Enum_Acc (Rti); Write_String_Id (Enum.Name); Wave_Put_ULEB128 (Ghdl_E32 (Enum.Nbr)); for I in 1 .. Enum.Nbr loop Write_String_Id (Enum.Names (I - 1)); end loop; end; when Ghdl_Rtik_Subtype_Array => declare Arr : Ghdl_Rtin_Subtype_Array_Acc; begin Arr := To_Ghdl_Rtin_Subtype_Array_Acc (Rti); Write_String_Id (Arr.Name); Write_Type_Id (To_Ghdl_Rti_Access (Arr.Basetype), Ctxt); declare Rngs : Ghdl_Range_Array (0 .. Arr.Basetype.Nbr_Dim - 1); begin Bound_To_Range (Loc_To_Addr (Rti.Depth, Arr.Bounds, Ctxt), Arr.Basetype, Rngs); for I in Rngs'Range loop Write_Range (Arr.Basetype.Indexes (I), Rngs (I)); end loop; end; end; when Ghdl_Rtik_Type_Array => declare Arr : Ghdl_Rtin_Type_Array_Acc; begin Arr := To_Ghdl_Rtin_Type_Array_Acc (Rti); Write_String_Id (Arr.Name); Write_Type_Id (Arr.Element, Ctxt); Wave_Put_ULEB128 (Ghdl_E32 (Arr.Nbr_Dim)); for I in 1 .. Arr.Nbr_Dim loop Write_Type_Id (Arr.Indexes (I - 1), Ctxt); end loop; end; when Ghdl_Rtik_Type_Record => declare Rec : Ghdl_Rtin_Type_Record_Acc; El : Ghdl_Rtin_Element_Acc; begin Rec := To_Ghdl_Rtin_Type_Record_Acc (Rti); Write_String_Id (Rec.Name); Wave_Put_ULEB128 (Ghdl_E32 (Rec.Nbrel)); for I in 1 .. Rec.Nbrel loop El := To_Ghdl_Rtin_Element_Acc (Rec.Elements (I - 1)); Write_String_Id (El.Name); Write_Type_Id (El.Eltype, Ctxt); end loop; end; when Ghdl_Rtik_Subtype_Scalar => declare Sub : Ghdl_Rtin_Subtype_Scalar_Acc; begin Sub := To_Ghdl_Rtin_Subtype_Scalar_Acc (Rti); Write_String_Id (Sub.Name); Write_Type_Id (Sub.Basetype, Ctxt); Write_Range (Sub.Basetype, To_Ghdl_Range_Ptr (Loc_To_Addr (Rti.Depth, Sub.Range_Loc, Ctxt))); end; when Ghdl_Rtik_Type_I32 | Ghdl_Rtik_Type_I64 | Ghdl_Rtik_Type_F64 => declare Base : Ghdl_Rtin_Type_Scalar_Acc; begin Base := To_Ghdl_Rtin_Type_Scalar_Acc (Rti); Write_String_Id (Base.Name); end; when Ghdl_Rtik_Type_P32 | Ghdl_Rtik_Type_P64 => declare Base : Ghdl_Rtin_Type_Physical_Acc; Unit : Ghdl_Rti_Access; begin Base := To_Ghdl_Rtin_Type_Physical_Acc (Rti); Write_String_Id (Base.Name); Wave_Put_ULEB128 (Ghdl_U32 (Base.Nbr)); for I in 1 .. Base.Nbr loop Unit := Base.Units (I - 1); Write_String_Id (Rtis_Utils.Get_Physical_Unit_Name (Unit)); case Unit.Kind is when Ghdl_Rtik_Unit64 => Wave_Put_LSLEB128 (To_Ghdl_Rtin_Unit64_Acc (Unit).Value); when Ghdl_Rtik_Unitptr => case Rti.Kind is when Ghdl_Rtik_Type_P64 => Wave_Put_LSLEB128 (To_Ghdl_Rtin_Unitptr_Acc (Unit). Addr.I64); when Ghdl_Rtik_Type_P32 => Wave_Put_SLEB128 (To_Ghdl_Rtin_Unitptr_Acc (Unit). Addr.I32); when others => Internal_Error ("wave.write_types(P32/P64-1)"); end case; when others => Internal_Error ("wave.write_types(P32/P64-2)"); end case; end loop; end; when others => Internal_Error ("wave.write_types"); -- Internal_Error ("wave.write_types: does not handle " & -- Ghdl_Rtik'Image (Rti.Kind)); end case; end if; end loop; Wave_Put_Byte (0); end Write_Types; procedure Write_Known_Types is use Grt.Rtis_Types; Boolean_Type_Id : AVL_Nid; Bit_Type_Id : AVL_Nid; Std_Ulogic_Type_Id : AVL_Nid; function Search_Type_Id (Rti : Ghdl_Rti_Access) return AVL_Nid is Ctxt : Rti_Context; Tid : AVL_Nid; begin Find_Type (Rti, Null_Context, Ctxt, Tid); return Tid; end Search_Type_Id; begin Search_Types_RTI; Boolean_Type_Id := Search_Type_Id (Std_Standard_Boolean_RTI_Ptr); Bit_Type_Id := Search_Type_Id (Std_Standard_Bit_RTI_Ptr); if Ieee_Std_Logic_1164_Std_Ulogic_RTI_Ptr /= null then Std_Ulogic_Type_Id := Search_Type_Id (Ieee_Std_Logic_1164_Std_Ulogic_RTI_Ptr); else Std_Ulogic_Type_Id := AVL_Nil; end if; Wave_Section ("WKT" & NUL); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_Byte (0); if Boolean_Type_Id /= AVL_Nil then Wave_Put_Byte (1); Write_Type_Id (Boolean_Type_Id); end if; if Bit_Type_Id /= AVL_Nil then Wave_Put_Byte (2); Write_Type_Id (Bit_Type_Id); end if; if Std_Ulogic_Type_Id /= AVL_Nil then Wave_Put_Byte (3); Write_Type_Id (Std_Ulogic_Type_Id); end if; Wave_Put_Byte (0); end Write_Known_Types; -- Table of signals to be dumped. package Dump_Table is new Grt.Table (Table_Component_Type => Ghdl_Signal_Ptr, Table_Index_Type => Natural, Table_Low_Bound => 1, Table_Initial => 32); function Get_Dump_Entry (N : Natural) return Ghdl_Signal_Ptr is begin return Dump_Table.Table (N); end Get_Dump_Entry; pragma Unreferenced (Get_Dump_Entry); procedure Write_Hierarchy (Root : VhpiHandleT) is N : Natural; begin -- Check Alink is 0. for I in Sig_Table.First .. Sig_Table.Last loop if Sig_Table.Table (I).Alink /= null then Internal_Error ("wave.write_hierarchy"); end if; end loop; Wave_Section ("HIE" & NUL); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_I32 (Ghdl_I32 (Nbr_Scopes)); Wave_Put_I32 (Ghdl_I32 (Nbr_Scope_Signals)); Wave_Put_I32 (Ghdl_I32 (Sig_Table.Last - Sig_Table.First + 1)); Wave_Put_Hierarchy (Root, Step_Hierarchy); Wave_Put_Byte (0); Dump_Table.Set_Last (Nbr_Dumped_Signals); for I in Dump_Table.First .. Dump_Table.Last loop Dump_Table.Table (I) := null; end loop; -- Save and clear. for I in Sig_Table.First .. Sig_Table.Last loop N := Get_Signal_Number (Sig_Table.Table (I)); if N /= 0 then if Dump_Table.Table (N) /= null then Internal_Error ("wave.write_hierarchy(2)"); end if; Dump_Table.Table (N) := Sig_Table.Table (I); Sig_Table.Table (I).Alink := null; end if; end loop; end Write_Hierarchy; procedure Write_Signal_Value (Sig : Ghdl_Signal_Ptr) is begin -- FIXME: for some signals, the significant value is the driving value! Write_Value (Sig.Value, Sig.Mode); end Write_Signal_Value; procedure Write_Snapshot is begin Wave_Section ("SNP" & NUL); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_Byte (0); Wave_Put_I64 (Ghdl_I64 (Cycle_Time)); for I in Dump_Table.First .. Dump_Table.Last loop Write_Signal_Value (Dump_Table.Table (I)); end loop; Wave_Put ("ESN" & NUL); end Write_Snapshot; procedure Wave_Cycle; -- Called after elaboration. procedure Wave_Start is Root : VhpiHandleT; begin -- Do nothing if there is no VCD file to generate. if Wave_Stream = NULL_Stream then return; end if; Write_File_Header; -- FIXME: write infos -- * date -- * timescale -- * design name ? -- ... -- Put hierarchy. Get_Root_Inst (Root); -- Vcd_Search_Packages; Wave_Put_Hierarchy (Root, Step_Name); Freeze_Strings; -- Register_Cycle_Hook (Vcd_Cycle'Access); Write_Strings_Compress; Write_Types; Write_Known_Types; Write_Hierarchy (Root); -- End of header mark. Wave_Section ("EOH" & NUL); Write_Snapshot; Register_Cycle_Hook (Wave_Cycle'Access); fflush (Wave_Stream); end Wave_Start; Wave_Time : Std_Time := 0; In_Cyc : Boolean := False; procedure Wave_Close_Cyc is begin Wave_Put_LSLEB128 (-1); Wave_Put ("ECY" & NUL); In_Cyc := False; end Wave_Close_Cyc; procedure Wave_Cycle is Diff : Std_Time; Sig : Ghdl_Signal_Ptr; Last : Natural; begin if not In_Cyc then Wave_Section ("CYC" & NUL); Wave_Put_I64 (Ghdl_I64 (Cycle_Time)); In_Cyc := True; else Diff := Cycle_Time - Wave_Time; Wave_Put_LSLEB128 (Ghdl_I64 (Diff)); end if; Wave_Time := Cycle_Time; -- Dump signals. Last := 0; for I in Dump_Table.First .. Dump_Table.Last loop Sig := Dump_Table.Table (I); if Sig.Flags.Cyc_Event then Wave_Put_ULEB128 (Ghdl_U32 (I - Last)); Last := I; Write_Signal_Value (Sig); Sig.Flags.Cyc_Event := False; end if; end loop; Wave_Put_Byte (0); end Wave_Cycle; -- Called at the end of the simulation. procedure Wave_End is begin if Wave_Stream = NULL_Stream then return; end if; if In_Cyc then Wave_Close_Cyc; end if; Wave_Write_Directory; fflush (Wave_Stream); end Wave_End; Wave_Hooks : aliased constant Hooks_Type := (Option => Wave_Option'Access, Help => Wave_Help'Access, Init => Wave_Init'Access, Start => Wave_Start'Access, Finish => Wave_End'Access); procedure Register is begin Register_Hooks (Wave_Hooks'Access); end Register; end Grt.Waves;