/* ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010, 2011,2012 Giovanni Di Sirio. This file is part of ChibiOS/RT. ChibiOS/RT 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 3 of the License, or (at your option) any later version. ChibiOS/RT 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 this program. If not, see . */ /** * @file templates/halconf.h * @brief HAL configuration header. * @details HAL configuration file, this file allows to enable or disable the * various device drivers from your application. You may also use * this file in order to override the device drivers default settings. * * @addtogroup HAL_CONF * @{ */ #ifndef _HALCONF_H_ #define _HALCONF_H_ /*#include "mcuconf.h"*/ /** * @brief Enables the TM subsystem. */ #if !defined(HAL_USE_TM) || defined(__DOXYGEN__) #define HAL_USE_TM FALSE #endif /** * @brief Enables the PAL subsystem. */ #if !defined(HAL_USE_PAL) || defined(__DOXYGEN__) #define HAL_USE_PAL FALSE #endif /** * @brief Enables the ADC subsystem. */ #if !defined(HAL_USE_ADC) || defined(__DOXYGEN__) #define HAL_USE_ADC FALSE #endif /** * @brief Enables the CAN subsystem. */ #if !defined(HAL_USE_CAN) || defined(__DOXYGEN__) #define HAL_USE_CAN FALSE #endif /** * @brief Enables the EXT subsystem. */ #if !defined(HAL_USE_EXT) || defined(__DOXYGEN__) #define HAL_USE_EXT FALSE #endif /** * @brief Enables the GPT subsystem. */ #if !defined(HAL_USE_GPT) || defined(__DOXYGEN__) #define HAL_USE_GPT FALSE #endif /** * @brief Enables the I2C subsystem. */ #if !defined(HAL_USE_I2C) || defined(__DOXYGEN__) #define HAL_USE_I2C FALSE #endif /** * @brief Enables the ICU subsystem. */ #if !defined(HAL_USE_ICU) || defined(__DOXYGEN__) #define HAL_USE_ICU FALSE #endif /** * @brief Enables the MAC subsystem. */ #if !defined(HAL_USE_MAC) || defined(__DOXYGEN__) #define HAL_USE_MAC FALSE #endif /** * @brief Enables the MMC_SPI subsystem. */ #if !defined(HAL_USE_MMC_SPI) || defined(__DOXYGEN__) #define HAL_USE_MMC_SPI FALSE #endif /** * @brief Enables the PWM subsystem. */ #if !defined(HAL_USE_PWM) || defined(__DOXYGEN__) #define HAL_USE_PWM FALSE #endif /** * @brief Enables the RTC subsystem. */ #if !defined(HAL_USE_RTC) || defined(__DOXYGEN__) #define HAL_USE_RTC FALSE #endif /** * @brief Enables the SDC subsystem. */ #if !defined(HAL_USE_SDC) || defined(__DOXYGEN__) #define HAL_USE_SDC FALSE #endif /** * @brief Enables the SERIAL subsystem. */ #if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__) #define HAL_USE_SERIAL FALSE #endif /** * @brief Enables the SERIAL over USB subsystem. */ #if !defined(HAL_USE_SERIAL_USB) || defined(__DOXYGEN__) #define HAL_USE_SERIAL_USB FALSE #endif /** * @brief Enables the SPI subsystem. */ #if !defined(HAL_USE_SPI) || defined(__DOXYGEN__) #define HAL_USE_SPI FALSE #endif /** * @brief Enables the UART subsystem. */ #if !defined(HAL_USE_UART) || defined(__DOXYGEN__) #define HAL_USE_UART FALSE #endif /** * @brief Enables the USB subsystem. */ #if !defined(HAL_USE_USB) || defined(__DOXYGEN__) #define HAL_USE_USB FALSE #endif /*===========================================================================*/ /* ADC driver related settings. */ /*===========================================================================*/ /** * @brief Enables synchronous APIs. * @note Disabling this option saves both code and data space. */ #if !defined(ADC_USE_WAIT) || defined(__DOXYGEN__) #define ADC_USE_WAIT TRUE #endif /** * @brief Enables the @p adcAcquireBus() and @p adcReleaseBus() APIs. * @note Disabling this option saves both code and data space. */ #if !defined(ADC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__) #define ADC_USE_MUTUAL_EXCLUSION TRUE #endif /*===========================================================================*/ /* CAN driver related settings. */ /*===========================================================================*/ /** * @brief Sleep mode related APIs inclusion switch. */ #if !defined(CAN_USE_SLEEP_MODE) || defined(__DOXYGEN__) #define CAN_USE_SLEEP_MODE TRUE #endif /*===========================================================================*/ /* I2C driver related settings. */ /*===========================================================================*/ /** * @brief Enables the mutual exclusion APIs on the I2C bus. */ #if !defined(I2C_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__) #define I2C_USE_MUTUAL_EXCLUSION TRUE #endif /*===========================================================================*/ /* MAC driver related settings. */ /*===========================================================================*/ /** * @brief Enables an event sources for incoming packets. */ #if !defined(MAC_USE_EVENTS) || defined(__DOXYGEN__) #define MAC_USE_EVENTS TRUE #endif /*===========================================================================*/ /* MMC_SPI driver related settings. */ /*===========================================================================*/ /** * @brief Block size for MMC transfers. */ #if !defined(MMC_SECTOR_SIZE) || defined(__DOXYGEN__) #define MMC_SECTOR_SIZE 512 #endif /** * @brief Delays insertions. * @details If enabled this options inserts delays into the MMC waiting * routines releasing some extra CPU time for the threads with * lower priority, this may slow down the driver a bit however. * This option is recommended also if the SPI driver does not * use a DMA channel and heavily loads the CPU. */ #if !defined(MMC_NICE_WAITING) || defined(__DOXYGEN__) #define MMC_NICE_WAITING TRUE #endif /** * @brief Number of positive insertion queries before generating the * insertion event. */ #if !defined(MMC_POLLING_INTERVAL) || defined(__DOXYGEN__) #define MMC_POLLING_INTERVAL 10 #endif /** * @brief Interval, in milliseconds, between insertion queries. */ #if !defined(MMC_POLLING_DELAY) || defined(__DOXYGEN__) #define MMC_POLLING_DELAY 10 #endif /** * @brief Uses the SPI polled API for small data transfers. * @details Polled transfers usually improve performance because it * saves two context switches and interrupt servicing. Note * that this option has no effect on large transfers which * are always performed using DMAs/IRQs. */ #if !defined(MMC_USE_SPI_POLLING) || defined(__DOXYGEN__) #define MMC_USE_SPI_POLLING TRUE #endif /*===========================================================================*/ /* SDC driver related settings. */ /*===========================================================================*/ /** * @brief Number of initialization attempts before rejecting the card. * @note Attempts are performed at 10mS intervals. */ #if !defined(SDC_INIT_RETRY) || defined(__DOXYGEN__) #define SDC_INIT_RETRY 100 #endif /** * @brief Include support for MMC cards. * @note MMC support is not yet implemented so this option must be kept * at @p FALSE. */ #if !defined(SDC_MMC_SUPPORT) || defined(__DOXYGEN__) #define SDC_MMC_SUPPORT FALSE #endif /** * @brief Delays insertions. * @details If enabled this options inserts delays into the MMC waiting * routines releasing some extra CPU time for the threads with * lower priority, this may slow down the driver a bit however. */ #if !defined(SDC_NICE_WAITING) || defined(__DOXYGEN__) #define SDC_NICE_WAITING TRUE #endif /*===========================================================================*/ /* SERIAL driver related settings. */ /*===========================================================================*/ /** * @brief Default bit rate. * @details Configuration parameter, this is the baud rate selected for the * default configuration. */ #if !defined(SERIAL_DEFAULT_BITRATE) || defined(__DOXYGEN__) #define SERIAL_DEFAULT_BITRATE 38400 #endif /** * @brief Serial buffers size. * @details Configuration parameter, you can change the depth of the queue * buffers depending on the requirements of your application. * @note The default is 64 bytes for both the transmission and receive * buffers. */ #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__) #define SERIAL_BUFFERS_SIZE 16 #endif /*===========================================================================*/ /* SPI driver related settings. */ /*===========================================================================*/ /** * @brief Enables synchronous APIs. * @note Disabling this option saves both code and data space. */ #if !defined(SPI_USE_WAIT) || defined(__DOXYGEN__) #define SPI_USE_WAIT TRUE #endif /** * @brief Enables the @p spiAcquireBus() and @p spiReleaseBus() APIs. * @note Disabling this option saves both code and data space. */ #if !defined(SPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__) #define SPI_USE_MUTUAL_EXCLUSION TRUE #endif #endif /* _HALCONF_H_ */ /** @} */ ='n234' href='#n234'>234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 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--  VHDL regeneration from internal nodes.
--  Copyright (C) 2002, 2003, 2004, 2005 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 GHDL; see the file COPYING.  If not, write to the Free
--  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
--  02111-1307, USA.

--  Re-print a tree as VHDL sources.  Except for comments and parenthesis, the
--  sequence of tokens displayed is the same as the sequence of tokens in the
--  input file.  If parenthesis are kept by the parser, the only differences
--  are comments and layout.
with Types; use Types;
with Simple_IO;
with Flags; use Flags;
with Name_Table;
with Str_Table;
with Std_Names; use Std_Names;
with Files_Map;
with Vhdl.Types; use Vhdl.Types;
with Vhdl.Errors; use Vhdl.Errors;
with Vhdl.Utils; use Vhdl.Utils;
with Vhdl.Std_Package;
with PSL.Priorities; use PSL.Priorities;
with PSL.Nodes; use PSL.Nodes;
with PSL.Prints;
with PSL.NFAs;
with PSL.Errors;

package body Vhdl.Prints is

   --  If True, display extra parenthesis to make priority of operators
   --  explicit.
   Flag_Parenthesis : constant Boolean := False;

   --  If set, disp after a string literal the type enclosed into brackets.
   Flag_Disp_String_Literal_Type: constant Boolean := False;

   --  If set, disp implicit declarations.
   Flag_Implicit : constant Boolean := False;

   procedure Disp_Type (Ctxt : in out Ctxt_Class; A_Type: Iir);
   procedure Disp_Range (Ctxt : in out Ctxt_Class; Rng : Iir);
   procedure Print (Ctxt : in out Ctxt_Class; Expr: Iir);

   procedure Disp_Concurrent_Statement (Ctxt : in out Ctxt_Class; Stmt: Iir);
   procedure Disp_Concurrent_Statement_Chain
     (Ctxt : in out Ctxt_Class; Parent: Iir);
   procedure Disp_Simultaneous_Statement_Chain
     (Ctxt : in out Ctxt_Class; Parent: Iir);
   procedure Disp_Declaration_Chain
     (Ctxt : in out Ctxt_Class; Parent : Iir);
   procedure Disp_Process_Statement (Ctxt : in out Ctxt_Class; Process: Iir);
   procedure Disp_Sequential_Statements
     (Ctxt : in out Ctxt_Class; First : Iir);
   procedure Disp_Choice (Ctxt : in out Ctxt_Class; Choice: in out Iir);
   procedure Disp_Association_Chain (Ctxt : in out Ctxt_Class; Chain : Iir);
   procedure Disp_Block_Configuration
     (Ctxt : in out Ctxt_Class; Block: Iir_Block_Configuration);
   procedure Disp_Subprogram_Declaration
     (Ctxt : in out Ctxt_Class; Subprg: Iir; Implicit : Boolean := False);
   procedure Disp_Binding_Indication
     (Ctxt : in out Ctxt_Class; Bind : Iir);
   procedure Disp_Subtype_Indication
     (Ctxt : in out Ctxt_Class; Def : Iir; Full_Decl : Boolean := False);
   procedure Disp_Subnature_Indication (Ctxt : in out Ctxt_Class; Ind : Iir);
   procedure Disp_Parametered_Attribute
     (Ctxt : in out Ctxt_Class; Name : Name_Id; Expr : Iir);
   procedure Disp_String_Literal
     (Ctxt : in out Ctxt_Class; Str : Iir; El_Type : Iir);
   procedure Disp_Package_Declaration
     (Ctxt : in out Ctxt_Class; Decl: Iir_Package_Declaration);
   procedure Disp_Package_Instantiation_Declaration
     (Ctxt : in out Ctxt_Class; Decl: Iir);
   procedure Disp_Package_Body (Ctxt : in out Ctxt_Class; Decl: Iir);
   procedure Disp_Attribute_Name (Ctxt : in out Ctxt_Class; Attr : Iir);

   procedure Print_Property (Ctxt : in out Ctxt_Class;
                             Prop : PSL_Node;
                             Parent_Prio : Priority := Prio_Lowest);
   procedure Print_Sequence (Ctxt : in out Ctxt_Class;
                             Seq : PSL_Node;
                             Parent_Prio : Priority := Prio_Lowest);

   procedure Disp_Int64 (Ctxt : in out Ctxt_Class; Val: Int64);
   procedure Disp_Int32 (Ctxt : in out Ctxt_Class; Val: Iir_Int32);
   procedure Disp_Fp64 (Ctxt : in out Ctxt_Class; Val: Fp64);

   package OOB is
      procedure Put (Str : String);
      procedure New_Line;
   end OOB;

   package body OOB is
      procedure Put (Str : String) is
      begin
         Simple_IO.Put_Err (Str);
      end Put;

      procedure Put (C : Character) is
      begin
         Put ((1 => C));
      end Put;

      procedure New_Line is
      begin
         Put (ASCII.LF);
      end New_Line;
   end OOB;

   procedure Disp_Token (Ctxt : in out Ctxt_Class; Tok1, Tok2 : Token_Type) is
   begin
      Disp_Token (Ctxt, Tok1);
      Disp_Token (Ctxt, Tok2);
   end Disp_Token;

   procedure Disp_Ident (Ctxt : in out Ctxt_Class; Id: Name_Id) is
   begin
      if Name_Table.Is_Character (Id) then
         Start_Lit (Ctxt, Tok_Character);
         Disp_Char (Ctxt, ''');
         Disp_Char (Ctxt, Name_Table.Get_Character (Id));
         Disp_Char (Ctxt, ''');
         Close_Lit (Ctxt);
      else
         Start_Lit (Ctxt, Tok_Identifier);
         if Id = Null_Identifier then
            Disp_Str (Ctxt, "<anonymous>");
         else
            Disp_Str (Ctxt, Name_Table.Image (Id));
         end if;
         Close_Lit (Ctxt);
      end if;
   end Disp_Ident;

   function Or_Else (L, R : Iir) return Iir is
   begin
      if L /= Null_Iir then
         return L;
      end if;
      pragma Assert (R /= Null_Iir);
      return R;
   end Or_Else;

   --  Disp a literal from the sources (so using exactely the same characters).
   procedure Disp_From_Source
     (Ctxt : in out Ctxt_Class;
      Loc : Location_Type; Len : Int32; Tok : Token_Type)
   is
      use Files_Map;
      pragma Assert (Len > 0);
      File : Source_File_Entry;
      Pos : Source_Ptr;
      Buf : File_Buffer_Acc;
   begin
      Location_To_File_Pos (Loc, File, Pos);
      Buf := Get_File_Source (File);
      Start_Lit (Ctxt, Tok);
      for I in 1 .. Len loop
         Disp_Char (Ctxt, Buf (Pos));
         Pos := Pos + 1;
      end loop;
      Close_Lit (Ctxt);
   end Disp_From_Source;

   procedure Disp_Identifier (Ctxt : in out Ctxt_Class; Node : Iir)
   is
      use Name_Table;
      Id : constant Name_Id := Get_Identifier (Node);
      Loc : constant Location_Type := Get_Location (Node);
   begin
      --  Try to display the one from the sources.
      if Id /= Null_Identifier
        and then not Is_Character (Id)
        and then Loc /= No_Location
        and then Loc /= Std_Package.Std_Location
      then
         Disp_From_Source
           (Ctxt, Loc, Int32 (Get_Name_Length (Id)), Tok_Identifier);
      else
         Disp_Ident (Ctxt, Id);
      end if;
   end Disp_Identifier;

   procedure Disp_Literal_From_Source
     (Ctxt : in out Ctxt_Class; Lit : Iir; Tok : Token_Type) is
   begin
      Disp_From_Source
        (Ctxt, Get_Location (Lit), Get_Literal_Length (Lit), Tok);
   end Disp_Literal_From_Source;

   procedure Disp_Function_Name (Ctxt : in out Ctxt_Class; Func: Iir)
   is
      use Name_Table;
      Id: Name_Id;
   begin
      Id := Get_Identifier (Func);
      case Id is
         when Name_Id_Operators
           | Name_Word_Operators
           | Name_Logical_Operators
           | Name_Xnor
           | Name_Shift_Operators =>
            Start_Lit (Ctxt, Tok_String);
            Disp_Char (Ctxt, '"');
            Disp_Str (Ctxt, Image (Id));
            Disp_Char (Ctxt, '"');
            Close_Lit (Ctxt);
         when others =>
            Disp_Ident (Ctxt, Id);
      end case;
   end Disp_Function_Name;

   --  Disp the name of DECL.
   procedure Disp_Name_Of (Ctxt : in out Ctxt_Class; Decl: Iir) is
   begin
      case Get_Kind (Decl) is
         when Iir_Kind_Component_Declaration
           | Iir_Kind_Entity_Declaration
           | Iir_Kind_Architecture_Body
           | Iir_Kind_Configuration_Declaration
           | Iir_Kind_Context_Declaration
           | Iir_Kinds_Verification_Unit
           | Iir_Kinds_Interface_Object_Declaration
           | Iir_Kind_Interface_Terminal_Declaration
           | Iir_Kind_Interface_Type_Declaration
           | Iir_Kind_Constant_Declaration
           | Iir_Kind_Signal_Declaration
           | Iir_Kind_Guard_Signal_Declaration
           | Iir_Kind_Variable_Declaration
           | Iir_Kind_Type_Declaration
           | Iir_Kind_File_Declaration
           | Iir_Kind_Subtype_Declaration
           | Iir_Kind_Element_Declaration
           | Iir_Kind_Record_Element_Constraint
           | Iir_Kind_Package_Declaration
           | Iir_Kind_Object_Alias_Declaration
           | Iir_Kind_Non_Object_Alias_Declaration
           | Iir_Kind_Iterator_Declaration
           | Iir_Kind_Library_Declaration
           | Iir_Kind_Unit_Declaration
           | Iir_Kind_Nature_Declaration
           | Iir_Kind_Terminal_Declaration
           | Iir_Kinds_Quantity_Declaration
           | Iir_Kind_Group_Template_Declaration
           | Iir_Kind_Character_Literal
           | Iir_Kinds_Process_Statement =>
            Disp_Identifier (Ctxt, Decl);
         when Iir_Kind_Anonymous_Type_Declaration =>
            Start_Lit (Ctxt, Tok_Identifier);
            Disp_Char (Ctxt, '<');
            Disp_Str (Ctxt, Name_Table.Image (Get_Identifier (Decl)));
            Disp_Char (Ctxt, '>');
            Close_Lit (Ctxt);
         when Iir_Kind_Function_Declaration =>
            Disp_Function_Name (Ctxt, Decl);
         when Iir_Kind_Procedure_Declaration =>
            Disp_Identifier (Ctxt, Decl);
         when Iir_Kind_Physical_Subtype_Definition
           | Iir_Kind_Enumeration_Type_Definition
           | Iir_Kind_Physical_Type_Definition
           | Iir_Kind_Record_Type_Definition
           | Iir_Kind_Protected_Type_Declaration =>
            --  Used for 'end' DECL_NAME.
            Disp_Identifier (Ctxt, Get_Type_Declarator (Decl));
         when Iir_Kind_Component_Instantiation_Statement =>
            Disp_Ident (Ctxt, Get_Label (Decl));
         when Iir_Kind_Design_Unit =>
            Disp_Name_Of (Ctxt, Get_Library_Unit (Decl));
         when Iir_Kind_Enumeration_Literal
           | Iir_Kind_Simple_Name =>
            Disp_Identifier (Ctxt, Decl);
         when Iir_Kind_Block_Statement
           | Iir_Kind_If_Generate_Statement
           | Iir_Kind_Case_Generate_Statement
           | Iir_Kind_For_Generate_Statement =>
            Disp_Ident (Ctxt, Get_Label (Decl));
         when Iir_Kind_Package_Body =>
            Disp_Identifier (Ctxt, Decl);
         when Iir_Kind_Procedure_Body
           | Iir_Kind_Function_Body =>
            Disp_Function_Name (Ctxt, Get_Subprogram_Specification (Decl));
         when Iir_Kind_Protected_Type_Body =>
            Disp_Identifier (Ctxt, Decl);
         when others =>
            Error_Kind ("disp_name_of", Decl);
      end case;
   end Disp_Name_Of;

   procedure Disp_Name_Attribute
     (Ctxt : in out Ctxt_Class; Attr : Iir; Name : Name_Id) is
   begin
      Print (Ctxt, Get_Prefix (Attr));
      Disp_Token (Ctxt, Tok_Tick);
      Disp_Ident (Ctxt, Name);
   end Disp_Name_Attribute;

   procedure Disp_Range (Ctxt : in out Ctxt_Class; Rng : Iir) is
   begin
      case Get_Kind (Rng) is
         when Iir_Kind_Range_Expression =>
            declare
               Origin : constant Iir := Get_Range_Origin (Rng);
            begin
               if Dump_Origin_Flag and then Origin /= Null_Iir then
                  Print (Ctxt, Origin);
               else
                  Print (Ctxt, Or_Else (Get_Left_Limit_Expr (Rng),
                                        Get_Left_Limit (Rng)));
                  if Get_Direction (Rng) = Iir_To then
                     Disp_Token (Ctxt, Tok_To);
                  else
                     Disp_Token (Ctxt, Tok_Downto);
                  end if;
                  Print (Ctxt, Or_Else (Get_Right_Limit_Expr (Rng),
                                        Get_Right_Limit (Rng)));
               end if;
            end;
         when Iir_Kind_Range_Array_Attribute =>
            Disp_Parametered_Attribute (Ctxt, Name_Range, Rng);
         when Iir_Kind_Reverse_Range_Array_Attribute =>
            Disp_Parametered_Attribute (Ctxt, Name_Reverse_Range, Rng);
         when Iir_Kind_Simple_Name
           | Iir_Kind_Selected_Name
           | Iir_Kind_Attribute_Name
           | Iir_Kind_Parenthesis_Name =>
            Print (Ctxt, Rng);
         when others =>
            Disp_Subtype_Indication (Ctxt, Rng);
            --  Disp_Name_Of (Get_Type_Declarator (Decl));
      end case;
   end Disp_Range;

   procedure Disp_After_End
     (Ctxt : in out Ctxt_Class;
      Decl : Iir; Tok1 : Token_Type; Tok2 : Token_Type := Tok_Invalid) is
   begin
      if Get_End_Has_Reserved_Id (Decl) then
         Disp_Token (Ctxt, Tok1);
         if Tok2 /= Tok_Invalid then
            Disp_Token (Ctxt, Tok2);
         end if;
      end if;
      if Get_End_Has_Identifier (Decl) then
         Disp_Name_Of (Ctxt, Decl);
      end if;
   end Disp_After_End;

   procedure Disp_End_No_Close
     (Ctxt : in out Ctxt_Class;
      Decl : Iir; Tok1 : Token_Type; Tok2 : Token_Type := Tok_Invalid) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_End);
      Disp_After_End (Ctxt, Decl, Tok1, Tok2);
   end Disp_End_No_Close;

   procedure Disp_End
     (Ctxt : in out Ctxt_Class;
      Decl : Iir; Tok1 : Token_Type; Tok2 : Token_Type := Tok_Invalid) is
   begin
      Disp_End_No_Close (Ctxt, Decl, Tok1, Tok2);
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_End;

   procedure Disp_End (Ctxt : in out Ctxt_Class; Tok1 : Token_Type) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_End);
      Disp_Token (Ctxt, Tok1);
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_End;

   procedure Disp_End_Label_No_Close
     (Ctxt : in out Ctxt_Class; Stmt : Iir; Tok : Token_Type) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_End);
      Disp_Token (Ctxt, Tok);
      if Get_End_Has_Identifier (Stmt) then
         Disp_Ident (Ctxt, Get_Label (Stmt));
      end if;
      Disp_Token (Ctxt, Tok_Semi_Colon);
   end Disp_End_Label_No_Close;

   procedure Disp_End_Label
     (Ctxt : in out Ctxt_Class; Stmt : Iir; Tok : Token_Type) is
   begin
      Disp_End_Label_No_Close (Ctxt, Stmt, Tok);
      Close_Hbox (Ctxt);
   end Disp_End_Label;

   procedure Disp_Use_Clause (Ctxt : in out Ctxt_Class; Clause: Iir_Use_Clause)
   is
      Name : Iir;
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Use);
      Name := Clause;
      loop
         Print (Ctxt, Get_Selected_Name (Name));
         Name := Get_Use_Clause_Chain (Name);
         exit when Name = Null_Iir;
         Disp_Token (Ctxt, Tok_Comma);
      end loop;
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Use_Clause;

   -- Disp the resolution function (if any) of type definition DEF.
   procedure Disp_Resolution_Indication
     (Ctxt : in out Ctxt_Class; Subtype_Def: Iir)
   is
      procedure Inner (Ind : Iir) is
      begin
         case Get_Kind (Ind) is
            when Iir_Kinds_Denoting_Name =>
               Print (Ctxt, Ind);
            when Iir_Kind_Array_Element_Resolution =>
               declare
                  Res : constant Iir := Get_Resolution_Indication (Ind);
               begin
                  Disp_Token (Ctxt, Tok_Left_Paren);
                  if Is_Valid (Res) then
                     Inner (Res);
                  else
                     Print (Ctxt, Get_Resolution_Indication
                                  (Get_Element_Subtype_Indication (Ind)));
                  end if;
                  Disp_Token (Ctxt, Tok_Right_Paren);
               end;
            when others =>
               Error_Kind ("disp_resolution_indication", Ind);
         end case;
      end Inner;

      Ind : Iir;
   begin
      case Get_Kind (Subtype_Def) is
         when Iir_Kind_Access_Subtype_Definition =>
            --  No resolution indication on access subtype.
            return;
         when others =>
            Ind := Get_Resolution_Indication (Subtype_Def);
            if Ind = Null_Iir then
               --  No resolution indication.
               return;
            end if;
      end case;

      if False then
         declare
            Type_Mark : constant Iir := Get_Denoted_Type_Mark (Subtype_Def);
         begin
            if Get_Kind (Type_Mark) in Iir_Kinds_Subtype_Definition
              and then Get_Resolution_Indication (Type_Mark) = Ind
            then
               --  Resolution indication was inherited from the type_mark.
               return;
            end if;
         end;
      end if;

      Inner (Ind);
   end Disp_Resolution_Indication;

   procedure Disp_Element_Constraint
     (Ctxt : in out Ctxt_Class; Def : Iir; Type_Mark : Iir);

   procedure Disp_Discrete_Range
     (Ctxt : in out Ctxt_Class; Iterator: Iir) is
   begin
      if Get_Kind (Iterator) in Iir_Kinds_Subtype_Definition then
         Disp_Subtype_Indication (Ctxt, Iterator);
      else
         Disp_Range (Ctxt, Iterator);
      end if;
   end Disp_Discrete_Range;

   procedure Disp_Array_Sub_Definition_Indexes
     (Ctxt : in out Ctxt_Class; Def : Iir)
   is
      Indexes : Iir_Flist;
      Index : Iir;
   begin
      Indexes := Get_Index_Constraint_List (Def);
      if Indexes = Null_Iir_Flist then
         Indexes := Get_Index_Subtype_List (Def);
      end if;
      Disp_Token (Ctxt, Tok_Left_Paren);
      for I in Flist_First .. Flist_Last (Indexes) loop
         Index := Get_Nth_Element (Indexes, I);
         if I /= 0 then
            Disp_Token (Ctxt, Tok_Comma);
         end if;
         Disp_Discrete_Range (Ctxt, Index);
      end loop;
      Disp_Token (Ctxt, Tok_Right_Paren);
   end Disp_Array_Sub_Definition_Indexes;

   procedure Disp_Array_Element_Constraint
     (Ctxt : in out Ctxt_Class; Def : Iir; Type_Mark : Iir)
   is
      Def_El : constant Iir := Get_Element_Subtype (Def);
      Tm_El : constant Iir := Get_Element_Subtype (Type_Mark);
      Has_Index : constant Boolean := Get_Index_Constraint_Flag (Def);
      Has_Own_Element_Subtype : constant Boolean := Def_El /= Tm_El;
   begin
      if not Has_Index and not Has_Own_Element_Subtype then
         return;
      end if;

      if Get_Constraint_State (Type_Mark) /= Fully_Constrained
        and then Has_Index
      then
         Disp_Array_Sub_Definition_Indexes (Ctxt, Def);
      end if;

      if Has_Own_Element_Subtype
        and then Get_Kind (Def_El) in Iir_Kinds_Composite_Type_Definition
      then
         Disp_Element_Constraint (Ctxt, Def_El, Tm_El);
      end if;
   end Disp_Array_Element_Constraint;

   procedure Disp_Record_Element_Constraint
     (Ctxt : in out Ctxt_Class; Def : Iir)
   is
      El_List : constant Iir_Flist := Get_Elements_Declaration_List (Def);
      El : Iir;
      Has_El : Boolean := False;
   begin
      for I in Flist_First .. Flist_Last (El_List) loop
         El := Get_Nth_Element (El_List, I);
         if Get_Kind (El) = Iir_Kind_Record_Element_Constraint
           and then Get_Parent (El) = Def
         then
            if Has_El then
               Disp_Token (Ctxt, Tok_Comma);
            else
               Disp_Token (Ctxt, Tok_Left_Paren);
               Has_El := True;
            end if;
            Disp_Name_Of (Ctxt, El);
            Disp_Element_Constraint (Ctxt, Get_Type (El),
                                     Get_Base_Type (Get_Type (El)));
         end if;
      end loop;
      if Has_El then
         Disp_Token (Ctxt, Tok_Right_Paren);
      end if;
   end Disp_Record_Element_Constraint;

   procedure Disp_Element_Constraint
     (Ctxt : in out Ctxt_Class; Def : Iir; Type_Mark : Iir) is
   begin
      case Get_Kind (Def) is
         when Iir_Kind_Record_Subtype_Definition =>
            Disp_Record_Element_Constraint (Ctxt, Def);
         when Iir_Kind_Array_Subtype_Definition =>
            Disp_Array_Element_Constraint (Ctxt, Def, Type_Mark);
         when others =>
            Error_Kind ("disp_element_constraint", Def);
      end case;
   end Disp_Element_Constraint;

   procedure Disp_Tolerance_Opt (Ctxt : in out Ctxt_Class; N : Iir)
   is
      Tol : constant Iir := Get_Tolerance (N);
   begin
      if Tol /= Null_Iir then
         Disp_Token (Ctxt, Tok_Tolerance);
         Print (Ctxt, Tol);
      end if;
   end Disp_Tolerance_Opt;

   procedure Disp_Subtype_Indication
     (Ctxt : in out Ctxt_Class; Def : Iir; Full_Decl : Boolean := False)
   is
      Type_Mark : Iir;
      Base_Type : Iir;
      Decl : Iir;
   begin
      case Get_Kind (Def) is
         when Iir_Kinds_Denoting_Name
           | Iir_Kind_Subtype_Attribute
           | Iir_Kind_Attribute_Name =>
            Print (Ctxt, Def);
            return;
         when others =>
            null;
      end case;

      Decl := Get_Type_Declarator (Def);
      if not Full_Decl and then Decl /= Null_Iir then
         Disp_Name_Of (Ctxt, Decl);
         return;
      end if;

      -- Resolution function name.
      Disp_Resolution_Indication (Ctxt, Def);

      -- type mark.
      Type_Mark := Get_Subtype_Type_Mark (Def);
      if Type_Mark /= Null_Iir then
         Print (Ctxt, Type_Mark);
         Type_Mark := Get_Type (Type_Mark);
      end if;

      case Get_Kind (Def) is
         when Iir_Kind_Array_Subtype_Definition =>
            Disp_Array_Element_Constraint
              (Ctxt, Def, Or_Else (Type_Mark, Def));
         when Iir_Kind_Subtype_Definition =>
            declare
               Rng : constant Iir := Get_Range_Constraint (Def);
            begin
               if Rng /= Null_Iir then
                  Disp_Token (Ctxt, Tok_Range);
                  Print (Ctxt, Get_Range_Constraint (Def));
               end if;
               Disp_Tolerance_Opt (Ctxt, Def);
            end;
         when others =>
            Base_Type := Get_Base_Type (Def);
            case Get_Kind (Base_Type) is
               when Iir_Kind_Integer_Type_Definition
                 | Iir_Kind_Enumeration_Type_Definition
                 | Iir_Kind_Floating_Type_Definition
                 | Iir_Kind_Physical_Type_Definition =>
                  if Type_Mark = Null_Iir
                    or else Get_Range_Constraint (Def)
                    /= Get_Range_Constraint (Type_Mark)
                  then
                     if Type_Mark /= Null_Iir then
                        Disp_Token (Ctxt, Tok_Range);
                     end if;
                     Print (Ctxt, Get_Range_Constraint (Def));
                  end if;
                  if Get_Kind (Base_Type) = Iir_Kind_Floating_Type_Definition
                  then
                     Disp_Tolerance_Opt (Ctxt, Def);
                  end if;
               when Iir_Kind_Access_Type_Definition =>
                  declare
                     Des_Ind : constant Iir :=
                       Get_Designated_Subtype_Indication (Def);
                  begin
                     if Des_Ind /= Null_Iir then
                        pragma Assert (Get_Kind (Des_Ind)
                                         = Iir_Kind_Array_Subtype_Definition);
                        Disp_Array_Element_Constraint
                          (Ctxt, Des_Ind, Get_Designated_Type (Base_Type));
                     end if;
                  end;
               when Iir_Kind_Array_Type_Definition =>
                  Disp_Array_Element_Constraint
                    (Ctxt, Def, Or_Else (Type_Mark, Def));
               when Iir_Kind_Record_Type_Definition =>
                  Disp_Record_Element_Constraint (Ctxt, Def);
               when others =>
                  Error_Kind ("disp_subtype_indication", Base_Type);
            end case;
      end case;
   end Disp_Subtype_Indication;

   procedure Disp_Enumeration_Type_Definition
     (Ctxt : in out Ctxt_Class; Def: Iir_Enumeration_Type_Definition)
   is
      Lits : constant Iir_Flist := Get_Enumeration_Literal_List (Def);
      A_Lit: Iir;
   begin
      Disp_Token (Ctxt, Tok_Left_Paren);
      for I in Flist_First .. Flist_Last (Lits) loop
         A_Lit := Get_Nth_Element (Lits, I);
         if I > 0 then
            Disp_Token (Ctxt, Tok_Comma);
         end if;
         Disp_Name_Of (Ctxt, A_Lit);
      end loop;
      Disp_Token (Ctxt, Tok_Right_Paren);
   end Disp_Enumeration_Type_Definition;

   procedure Disp_Array_Definition_Indexes
     (Ctxt : in out Ctxt_Class; Def: Iir)
   is
      Indexes : Iir_Flist;
      Index: Iir;
   begin
      Indexes := Get_Index_Subtype_Definition_List (Def);
      if Indexes = Null_Iir_Flist then
         Indexes := Get_Index_Subtype_List (Def);
      end if;
      Disp_Token (Ctxt, Tok_Array, Tok_Left_Paren);
      for I in Flist_First .. Flist_Last (Indexes) loop
         Index := Get_Nth_Element (Indexes, I);
         if I /= 0 then
            Disp_Token (Ctxt, Tok_Comma);
         end if;
         Print (Ctxt, Index);
         Disp_Token (Ctxt, Tok_Range, Tok_Box);
      end loop;
      Disp_Token (Ctxt, Tok_Right_Paren, Tok_Of);
   end Disp_Array_Definition_Indexes;

   procedure Disp_Array_Type_Definition
     (Ctxt : in out Ctxt_Class; Def: Iir_Array_Type_Definition) is
   begin
      Disp_Array_Definition_Indexes (Ctxt, Def);
      Disp_Subtype_Indication (Ctxt, Get_Element_Subtype_Indication (Def));
   end Disp_Array_Type_Definition;

   procedure Disp_Physical_Literal (Ctxt : in out Ctxt_Class; Lit: Iir)
   is
      Len : constant Int32 := Get_Literal_Length (Lit);
      Unit : Iir;
   begin
      case Iir_Kinds_Physical_Literal (Get_Kind (Lit)) is
         when Iir_Kind_Physical_Int_Literal =>
            if Len /= 0 then
               Disp_Literal_From_Source (Ctxt, Lit, Tok_Integer);
            else
               Disp_Int64 (Ctxt, Get_Value (Lit));
            end if;
         when Iir_Kind_Physical_Fp_Literal =>
            if Len /= 0 then
               Disp_Literal_From_Source (Ctxt, Lit, Tok_Real);
            else
               Disp_Fp64 (Ctxt, Get_Fp_Value (Lit));
            end if;
      end case;

      Unit := Get_Unit_Name (Lit);
      if Is_Valid (Unit) then
         --  No unit in range_constraint of physical type declaration.
         Print (Ctxt, Unit);
      end if;
   end Disp_Physical_Literal;

   procedure Disp_Record_Type_Definition
     (Ctxt : in out Ctxt_Class; Def: Iir_Record_Type_Definition)
   is
      List : constant Iir_Flist := Get_Elements_Declaration_List (Def);
      El: Iir_Element_Declaration;
      El_Subtype : Iir;
      Reindent : Boolean;
   begin
      Disp_Token (Ctxt, Tok_Record);
      Close_Hbox (Ctxt);
      Reindent := True;
      Start_Vbox (Ctxt);
      for I in Flist_First .. Flist_Last (List) loop
         El := Get_Nth_Element (List, I);
         if Reindent then
            El_Subtype := Get_Subtype_Indication (El);
            Start_Hbox (Ctxt);
         end if;
         Disp_Identifier (Ctxt, El);
         if Get_Has_Identifier_List (El) then
            Disp_Token (Ctxt, Tok_Comma);
            Reindent := False;
         else
            Disp_Token (Ctxt, Tok_Colon);
            Disp_Subtype_Indication (Ctxt, Or_Else (El_Subtype,
                                                    Get_Type (El)));
            Disp_Token (Ctxt, Tok_Semi_Colon);
            Close_Hbox (Ctxt);
            Reindent := True;
         end if;
      end loop;
      Close_Vbox (Ctxt);
      Disp_End_No_Close (Ctxt, Def, Tok_Record);
   end Disp_Record_Type_Definition;

   procedure Disp_Designator_List (Ctxt : in out Ctxt_Class; List: Iir_List)
   is
      El : Iir;
      It : List_Iterator;
      Is_First : Boolean;
   begin
      case List is
         when Null_Iir_List =>
            null;
         when Iir_List_All =>
            Disp_Token (Ctxt, Tok_All);
         when others =>
            It := List_Iterate (List);
            Is_First := True;
            while Is_Valid (It) loop
               El := Get_Element (It);
               if not Is_First then
                  Disp_Token (Ctxt, Tok_Comma);
               else
                  Is_First := False;
               end if;
               Print (Ctxt, El);
               Next (It);
            end loop;
      end case;
   end Disp_Designator_List;

   procedure Disp_Array_Subtype_Definition
     (Ctxt : in out Ctxt_Class; Def : Iir; El_Def : Iir) is
   begin
      Disp_Token (Ctxt, Tok_Array);
      Disp_Array_Sub_Definition_Indexes (Ctxt, Def);
      Disp_Token (Ctxt, Tok_Of);
      Disp_Subtype_Indication (Ctxt, El_Def);
   end Disp_Array_Subtype_Definition;

   -- Display the full definition of a type, ie the sequence that can create
   -- such a type.
   procedure Disp_Type_Definition (Ctxt : in out Ctxt_Class; Def: Iir) is
   begin
      case Get_Kind (Def) is
         when Iir_Kind_Enumeration_Type_Definition =>
            Disp_Enumeration_Type_Definition (Ctxt, Def);
         when Iir_Kind_Array_Type_Definition =>
            Disp_Array_Type_Definition (Ctxt, Def);
         when Iir_Kind_Array_Subtype_Definition =>
            Disp_Array_Subtype_Definition
              (Ctxt, Def, Get_Element_Subtype (Get_Base_Type (Def)));
         when Iir_Kind_Record_Type_Definition =>
            Disp_Record_Type_Definition (Ctxt, Def);
         when Iir_Kind_Access_Type_Definition =>
            Disp_Token (Ctxt, Tok_Access);
            Disp_Subtype_Indication
              (Ctxt, Get_Designated_Subtype_Indication (Def));
         when Iir_Kind_File_Type_Definition =>
            Disp_Token (Ctxt, Tok_File, Tok_Of);
            Disp_Subtype_Indication (Ctxt, Get_File_Type_Mark (Def));
         when Iir_Kind_Protected_Type_Declaration =>
            Disp_Token (Ctxt, Tok_Protected);
            Close_Hbox (Ctxt);
            Start_Vbox (Ctxt);
            Disp_Declaration_Chain (Ctxt, Def);
            Close_Vbox (Ctxt);
            Disp_End_No_Close (Ctxt, Def, Tok_Protected);
         when Iir_Kind_Attribute_Name
           | Iir_Kind_Range_Expression
           | Iir_Kind_Parenthesis_Name =>
            Disp_Token (Ctxt, Tok_Range);
            Print (Ctxt, Def);
         when others =>
            Error_Kind ("disp_type_definition", Def);
      end case;
   end Disp_Type_Definition;

   procedure Disp_Type_Declaration
     (Ctxt : in out Ctxt_Class; Decl: Iir_Type_Declaration)
   is
      Def : constant Iir := Get_Type_Definition (Decl);
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Type);
      Disp_Name_Of (Ctxt, Decl);
      if Def /= Null_Iir
        and then Get_Kind (Def) /= Iir_Kind_Incomplete_Type_Definition
      then
         Disp_Token (Ctxt, Tok_Is);
         Disp_Type_Definition (Ctxt, Def);
      end if;
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Type_Declaration;

   procedure Disp_Physical_Type_Definition
     (Ctxt : in out Ctxt_Class; Decl : Iir)
   is
      Def : constant Iir := Get_Type_Definition (Decl);
      St : constant Iir := Get_Subtype_Definition (Decl);
      Unit : Iir_Unit_Declaration;
      Rng : Iir;
   begin
      Disp_Token (Ctxt, Tok_Range);
      Rng := Or_Else (St, Def);
      Print (Ctxt, Get_Range_Constraint (Rng));
      Disp_Token (Ctxt, Tok_Units);
      Close_Hbox (Ctxt);

      Start_Vbox (Ctxt);
      Unit := Get_Unit_Chain (Def);
      Start_Hbox (Ctxt);
      Disp_Identifier (Ctxt, Unit);
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
      Unit := Get_Chain (Unit);
      while Unit /= Null_Iir loop
         Start_Hbox (Ctxt);
         Disp_Identifier (Ctxt, Unit);
         Disp_Token (Ctxt, Tok_Equal);
         Print (Ctxt, Get_Physical_Literal (Unit));
         Disp_Token (Ctxt, Tok_Semi_Colon);
         Close_Hbox (Ctxt);
         Unit := Get_Chain (Unit);
      end loop;
      Close_Vbox (Ctxt);
      Disp_End_No_Close (Ctxt, Def, Tok_Units);
   end Disp_Physical_Type_Definition;

   procedure Disp_Anonymous_Type_Declaration
     (Ctxt : in out Ctxt_Class; Decl: Iir_Anonymous_Type_Declaration)
   is
      Def : constant Iir := Get_Type_Definition (Decl);
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Type);
      Disp_Identifier (Ctxt, Decl);
      Disp_Token (Ctxt, Tok_Is);
      case Get_Kind (Def) is
         when Iir_Kind_Array_Type_Definition =>
            Disp_Array_Subtype_Definition
              (Ctxt, Get_Subtype_Definition (Decl),
               Get_Element_Subtype_Indication (Def));
         when Iir_Kind_Array_Subtype_Definition =>
            Disp_Array_Subtype_Definition
              (Ctxt, Def, Get_Array_Element_Constraint (Def));
         when Iir_Kind_Physical_Type_Definition =>
            Disp_Physical_Type_Definition (Ctxt, Decl);
         when Iir_Kind_Floating_Type_Definition
           | Iir_Kind_Integer_Type_Definition =>
            declare
               St : constant Iir := Get_Subtype_Definition (Decl);
            begin
               Disp_Token (Ctxt, Tok_Range);
               Print (Ctxt, Get_Range_Constraint (St));
            end;
         when others =>
            Disp_Type_Definition (Ctxt, Def);
      end case;
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Anonymous_Type_Declaration;

   procedure Disp_Subtype_Declaration
     (Ctxt : in out Ctxt_Class; Decl: Iir_Subtype_Declaration)
   is
      Def : constant Iir := Get_Type (Decl);
   begin
      --  If the subtype declaration was implicit (added because of a type
      --  declaration), put it as a comment.
      if Def /= Null_Iir
        and then
        (Get_Identifier (Decl)
           = Get_Identifier (Get_Type_Declarator (Get_Base_Type (Def))))
      then
         if Flag_Implicit then
            OOB.Put ("-- ");
         else
            return;
         end if;
      end if;
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Subtype);
      Disp_Name_Of (Ctxt, Decl);
      Disp_Token (Ctxt, Tok_Is);
      Disp_Subtype_Indication
        (Ctxt, Or_Else (Get_Subtype_Indication (Decl), Get_Type (Decl)), True);
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Subtype_Declaration;

   procedure Disp_Type (Ctxt : in out Ctxt_Class; A_Type: Iir)
   is
      Decl: Iir;
   begin
      Decl := Get_Type_Declarator (A_Type);
      if Decl /= Null_Iir then
         Disp_Name_Of (Ctxt, Decl);
      else
         case Get_Kind (A_Type) is
            when Iir_Kind_Enumeration_Type_Definition
              | Iir_Kind_Integer_Type_Definition =>
               raise Program_Error;
            when Iir_Kind_Integer_Subtype_Definition
              | Iir_Kind_Enumeration_Subtype_Definition
              | Iir_Kind_Access_Subtype_Definition =>
               Disp_Subtype_Indication (Ctxt, A_Type);
            when Iir_Kind_Array_Subtype_Definition =>
               Disp_Subtype_Indication (Ctxt, A_Type);
            when others =>
               Error_Kind ("disp_type", A_Type);
         end case;
      end if;
   end Disp_Type;

   procedure Disp_Scalar_Nature_Definition
     (Ctxt : in out Ctxt_Class; Def : Iir) is
   begin
      Print (Ctxt, Get_Across_Type_Mark (Def));
      Disp_Token (Ctxt, Tok_Across);
      Print (Ctxt, Get_Through_Type_Mark (Def));
      Disp_Token (Ctxt, Tok_Through);
      Disp_Name_Of (Ctxt, Get_Reference (Def));
      Disp_Token (Ctxt, Tok_Reference);
   end Disp_Scalar_Nature_Definition;

   procedure Disp_Array_Nature_Definition
     (Ctxt : in out Ctxt_Class; Def: Iir) is
   begin
      Disp_Array_Definition_Indexes (Ctxt, Def);
      Disp_Subnature_Indication (Ctxt, Get_Element_Subnature_Indication (Def));
   end Disp_Array_Nature_Definition;

   procedure Disp_Record_Nature_Definition
     (Ctxt : in out Ctxt_Class; Def : Iir)
   is
      List : constant Iir_Flist := Get_Elements_Declaration_List (Def);
      El: Iir_Element_Declaration;
      El_Subnature : Iir;
      Reindent : Boolean;
   begin
      Disp_Token (Ctxt, Tok_Record);
      Close_Hbox (Ctxt);
      Reindent := True;
      Start_Vbox (Ctxt);
      for I in Flist_First .. Flist_Last (List) loop
         El := Get_Nth_Element (List, I);
         if Reindent then
            El_Subnature := Get_Subnature_Indication (El);
            Start_Hbox (Ctxt);
         end if;
         Disp_Identifier (Ctxt, El);
         if Get_Has_Identifier_List (El) then
            Disp_Token (Ctxt, Tok_Comma);
            Reindent := False;
         else
            Disp_Token (Ctxt, Tok_Colon);
            Disp_Subnature_Indication (Ctxt, El_Subnature);
            Disp_Token (Ctxt, Tok_Semi_Colon);
            Close_Hbox (Ctxt);
            Reindent := True;
         end if;
      end loop;
      Close_Vbox (Ctxt);
      Disp_End_No_Close (Ctxt, Def, Tok_Record);
   end Disp_Record_Nature_Definition;

   procedure Disp_Nature_Definition (Ctxt : in out Ctxt_Class; Def : Iir) is
   begin
      case Get_Kind (Def) is
         when Iir_Kind_Scalar_Nature_Definition =>
            Disp_Scalar_Nature_Definition (Ctxt, Def);
         when Iir_Kind_Record_Nature_Definition =>
            Disp_Record_Nature_Definition (Ctxt, Def);
         when Iir_Kind_Array_Nature_Definition =>
            Disp_Array_Nature_Definition (Ctxt, Def);
         when others =>
            Error_Kind ("disp_nature_definition", Def);
      end case;
   end Disp_Nature_Definition;

   procedure Disp_Nature_Declaration (Ctxt : in out Ctxt_Class; Decl : Iir) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Nature);
      Disp_Name_Of (Ctxt, Decl);
      Disp_Token (Ctxt, Tok_Is);
      Disp_Nature_Definition (Ctxt, Get_Nature (Decl));
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Nature_Declaration;

   procedure Disp_Subnature_Indication (Ctxt : in out Ctxt_Class; Ind : Iir) is
   begin
      case Get_Kind (Ind) is
         when Iir_Kinds_Denoting_Name
           | Iir_Kind_Subtype_Attribute
           | Iir_Kind_Attribute_Name =>
            Print (Ctxt, Ind);
         when Iir_Kind_Array_Subnature_Definition =>
            Print (Ctxt, Get_Subnature_Nature_Mark (Ind));
            Disp_Array_Sub_Definition_Indexes (Ctxt, Ind);
         when others =>
            Error_Kind ("disp_subnature_indication", Ind);
      end case;
   end Disp_Subnature_Indication;

   procedure Disp_Mode (Ctxt : in out Ctxt_Class; Mode: Iir_Mode) is
   begin
      case Mode is
         when Iir_In_Mode =>
            Disp_Token (Ctxt, Tok_In);
         when Iir_Out_Mode =>
            Disp_Token (Ctxt, Tok_Out);
         when Iir_Inout_Mode =>
            Disp_Token (Ctxt, Tok_Inout);
         when Iir_Buffer_Mode =>
            Disp_Token (Ctxt, Tok_Buffer);
         when Iir_Linkage_Mode =>
            Disp_Token (Ctxt, Tok_Linkage);
         when Iir_Unknown_Mode =>
            null;
      end case;
   end Disp_Mode;

   procedure Disp_Signal_Kind (Ctxt : in out Ctxt_Class; Sig : Iir) is
   begin
      if Get_Guarded_Signal_Flag (Sig) then
         case Get_Signal_Kind (Sig) is
            when Iir_Register_Kind =>
               Disp_Token (Ctxt, Tok_Register);
            when Iir_Bus_Kind =>
               Disp_Token (Ctxt, Tok_Bus);
         end case;
      end if;
   end Disp_Signal_Kind;

   procedure Disp_Interface_Class (Ctxt : in out Ctxt_Class; Inter: Iir) is
   begin
      if Get_Has_Class (Inter) then
         case Get_Kind (Inter) is
            when Iir_Kind_Interface_Signal_Declaration =>
               Disp_Token (Ctxt, Tok_Signal);
            when Iir_Kind_Interface_Variable_Declaration =>
               Disp_Token (Ctxt, Tok_Variable);
            when Iir_Kind_Interface_Constant_Declaration =>
               Disp_Token (Ctxt, Tok_Constant);
            when Iir_Kind_Interface_File_Declaration =>
               Disp_Token (Ctxt, Tok_File);
            when Iir_Kind_Interface_Terminal_Declaration =>
               Disp_Token (Ctxt, Tok_Terminal);
            when Iir_Kind_Interface_Quantity_Declaration =>
               Disp_Token (Ctxt, Tok_Quantity);
            when others =>
               Error_Kind ("disp_interface_class", Inter);
         end case;
      end if;
   end Disp_Interface_Class;

   procedure Disp_Default_Value_Opt (Ctxt : in out Ctxt_Class; Obj : Iir)
   is
      Default: constant Iir := Get_Default_Value (Obj);
   begin
      if Default /= Null_Iir then
         Disp_Token (Ctxt, Tok_Assign);
         Print (Ctxt, Default);
      end if;
   end Disp_Default_Value_Opt;

   procedure Disp_Interface_Mode_And_Type
     (Ctxt : in out Ctxt_Class; Inter: Iir)
   is
      Ind : constant Iir := Get_Subtype_Indication (Inter);
   begin
      Disp_Token (Ctxt, Tok_Colon);
      if Get_Has_Mode (Inter) then
         Disp_Mode (Ctxt, Get_Mode (Inter));
      end if;
      if Ind = Null_Iir then
         --  For implicit subprogram
         Disp_Type (Ctxt, Get_Type (Inter));
      else
         Disp_Subtype_Indication (Ctxt, Get_Subtype_Indication (Inter));
      end if;
      if Get_Kind (Inter) = Iir_Kind_Interface_Signal_Declaration then
         Disp_Signal_Kind (Ctxt, Inter);
      end if;
      Disp_Default_Value_Opt (Ctxt, Inter);
   end Disp_Interface_Mode_And_Type;

   --  Disp interfaces, followed by END_STR (';' in general).
   procedure Disp_Interface_Chain
     (Ctxt : in out Ctxt_Class; Chain: Iir; With_Box : Boolean)
   is
      Inter: Iir;
      Next_Inter : Iir;
      First_Inter : Iir;
   begin
      if Chain = Null_Iir then
         return;
      end if;
      Disp_Token (Ctxt, Tok_Left_Paren);

      if With_Box then
         Close_Hbox (Ctxt);
         Start_Vbox (Ctxt);
      end if;

      Inter := Chain;
      loop
         Next_Inter := Get_Chain (Inter);

         First_Inter := Inter;

         if With_Box then
            Start_Hbox (Ctxt);
         end if;

         case Iir_Kinds_Interface_Declaration (Get_Kind (Inter)) is
            when Iir_Kinds_Interface_Object_Declaration =>
               Disp_Interface_Class (Ctxt, Inter);
               Disp_Name_Of (Ctxt, Inter);
               while Get_Has_Identifier_List (Inter) loop
                  Disp_Token (Ctxt, Tok_Comma);
                  Inter := Next_Inter;
                  Next_Inter := Get_Chain (Inter);
                  Disp_Name_Of (Ctxt, Inter);
               end loop;
               Disp_Interface_Mode_And_Type (Ctxt, First_Inter);
            when Iir_Kind_Interface_Terminal_Declaration =>
               Disp_Interface_Class (Ctxt, Inter);
               Disp_Name_Of (Ctxt, Inter);
               while Get_Has_Identifier_List (Inter) loop
                  Disp_Token (Ctxt, Tok_Comma);
                  Inter := Next_Inter;
                  Next_Inter := Get_Chain (Inter);
                  Disp_Name_Of (Ctxt, Inter);
               end loop;
               Disp_Token (Ctxt, Tok_Colon);
               Disp_Subnature_Indication
                 (Ctxt, Get_Subnature_Indication (First_Inter));
            when Iir_Kind_Interface_Package_Declaration =>
               Disp_Token (Ctxt, Tok_Package);
               Disp_Identifier (Ctxt, Inter);
               Disp_Token (Ctxt, Tok_Is, Tok_New);
               Print (Ctxt, Get_Uninstantiated_Package_Name (Inter));
               Disp_Token (Ctxt, Tok_Generic, Tok_Map);
               declare
                  Assoc_Chain : constant Iir :=
                    Get_Generic_Map_Aspect_Chain (Inter);
               begin
                  if Assoc_Chain = Null_Iir then
                     Disp_Token (Ctxt, Tok_Left_Paren);
                     Disp_Token (Ctxt, Tok_Box);
                     Disp_Token (Ctxt, Tok_Right_Paren);
                  else
                     Disp_Association_Chain (Ctxt, Assoc_Chain);
                  end if;
               end;
            when Iir_Kind_Interface_Type_Declaration =>
               Disp_Token (Ctxt, Tok_Type);
               Disp_Identifier (Ctxt, Inter);
            when Iir_Kinds_Interface_Subprogram_Declaration =>
               Disp_Subprogram_Declaration (Ctxt, Inter);
            --  when others =>
            --     Error_Kind ("disp_interface_chain", Inter);
         end case;

         if Next_Inter /= Null_Iir then
            Disp_Token (Ctxt, Tok_Semi_Colon);
         end if;

         if With_Box then
            Close_Hbox (Ctxt);
         end if;

         exit when Next_Inter = Null_Iir;

         Inter := Next_Inter;
         Next_Inter := Get_Chain (Inter);
      end loop;

      if With_Box then
         Close_Vbox (Ctxt);
         Start_Hbox (Ctxt);
      end if;

      Disp_Token (Ctxt, Tok_Right_Paren);
   end Disp_Interface_Chain;

   procedure Disp_Ports (Ctxt : in out Ctxt_Class; Parent : Iir)
   is
      Ports : constant Iir := Get_Port_Chain (Parent);
   begin
      if Ports /= Null_Iir then
         Start_Hbox (Ctxt);
         Disp_Token (Ctxt, Tok_Port);
         Disp_Interface_Chain (Ctxt, Ports, True);
         Disp_Token (Ctxt, Tok_Semi_Colon);
         Close_Hbox (Ctxt);
      end if;
   end Disp_Ports;

   procedure Disp_Generics (Ctxt : in out Ctxt_Class; Parent : Iir)
   is
      Generics : constant Iir := Get_Generic_Chain (Parent);
   begin
      if Generics /= Null_Iir then
         Start_Hbox (Ctxt);
         Disp_Token (Ctxt, Tok_Generic);
         Disp_Interface_Chain (Ctxt, Generics, True);
         Disp_Token (Ctxt, Tok_Semi_Colon);
         Close_Hbox (Ctxt);
      end if;
   end Disp_Generics;

   procedure Disp_Entity_Declaration
     (Ctxt : in out Ctxt_Class; Decl: Iir_Entity_Declaration) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Entity);
      Disp_Name_Of (Ctxt, Decl);
      Disp_Token (Ctxt, Tok_Is);
      Close_Hbox (Ctxt);

      Start_Vbox (Ctxt);
      Disp_Generics (Ctxt, Decl);
      Disp_Ports (Ctxt, Decl);
      Disp_Declaration_Chain (Ctxt, Decl);
      Close_Vbox (Ctxt);

      if Get_Has_Begin (Decl) then
         Start_Hbox (Ctxt);
         Disp_Token (Ctxt, Tok_Begin);
         Close_Hbox (Ctxt);
      end if;
      if Get_Concurrent_Statement_Chain (Decl) /= Null_Iir then
         Start_Vbox (Ctxt);
         Disp_Concurrent_Statement_Chain (Ctxt, Decl);
         Close_Vbox (Ctxt);
      end if;
      Disp_End (Ctxt, Decl, Tok_Entity);
   end Disp_Entity_Declaration;

   procedure Disp_Component_Declaration
     (Ctxt : in out Ctxt_Class; Decl: Iir_Component_Declaration) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Component);
      Disp_Name_Of (Ctxt, Decl);
      if Get_Has_Is (Decl) then
         Disp_Token (Ctxt, Tok_Is);
      end if;
      Close_Hbox (Ctxt);

      Start_Vbox (Ctxt);
      if Get_Generic_Chain (Decl) /= Null_Iir then
         Disp_Generics (Ctxt, Decl);
      end if;
      if Get_Port_Chain (Decl) /= Null_Iir then
         Disp_Ports (Ctxt, Decl);
      end if;
      Close_Vbox (Ctxt);

      Disp_End (Ctxt, Decl, Tok_Component);
   end Disp_Component_Declaration;

   procedure Disp_Concurrent_Statement_Chain
     (Ctxt : in out Ctxt_Class; Parent : Iir)
   is
      El: Iir;
   begin
      El := Get_Concurrent_Statement_Chain (Parent);
      while El /= Null_Iir loop
         Disp_Concurrent_Statement (Ctxt, El);
         El := Get_Chain (El);
      end loop;
   end Disp_Concurrent_Statement_Chain;

   procedure Disp_Simultaneous_Statement_Chain
     (Ctxt : in out Ctxt_Class; Parent : Iir)
   is
      El: Iir;
   begin
      El := Get_Simultaneous_Statement_Chain (Parent);
      while El /= Null_Iir loop
         Disp_Concurrent_Statement (Ctxt, El);
         El := Get_Chain (El);
      end loop;
   end Disp_Simultaneous_Statement_Chain;

   procedure Disp_Architecture_Body
     (Ctxt : in out Ctxt_Class; Arch: Iir_Architecture_Body) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Architecture);
      Disp_Name_Of (Ctxt, Arch);
      Disp_Token (Ctxt, Tok_Of);
      Print (Ctxt, Get_Entity_Name (Arch));
      Close_Hbox (Ctxt);
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Is);
      Close_Hbox (Ctxt);

      Start_Vbox (Ctxt);
      Disp_Declaration_Chain (Ctxt, Arch);
      Close_Vbox (Ctxt);

      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Begin);
      Close_Hbox (Ctxt);

      Start_Vbox (Ctxt);
      Disp_Concurrent_Statement_Chain (Ctxt, Arch);
      Close_Vbox (Ctxt);

      Disp_End (Ctxt, Arch, Tok_Architecture);
   end Disp_Architecture_Body;

   procedure Disp_Signature (Ctxt : in out Ctxt_Class; Sig : Iir)
   is
      Prefix : constant Iir := Get_Signature_Prefix (Sig);
      List : constant Iir_Flist := Get_Type_Marks_List (Sig);
      El : Iir;
   begin
      if Is_Valid (Prefix) then
         --  Only in alias.
         Print (Ctxt, Prefix);
      end if;
      Disp_Token (Ctxt, Tok_Left_Bracket);
      if List /= Null_Iir_Flist then
         for I in Flist_First .. Flist_Last (List) loop
            El := Get_Nth_Element (List, I);
            if I /= 0 then
               Disp_Token (Ctxt, Tok_Comma);
            end if;
            Print (Ctxt, El);
         end loop;
      end if;
      El := Get_Return_Type_Mark (Sig);
      if El /= Null_Iir then
         Disp_Token (Ctxt, Tok_Return);
         Print (Ctxt, El);
      end if;
      Disp_Token (Ctxt, Tok_Right_Bracket);
   end Disp_Signature;

   procedure Disp_Object_Alias_Declaration
     (Ctxt : in out Ctxt_Class; Decl: Iir_Object_Alias_Declaration)
   is
      St_Ind : constant Iir := Get_Subtype_Indication (Decl);
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Alias);
      Disp_Function_Name (Ctxt, Decl);
      if St_Ind /= Null_Iir then
         Disp_Token (Ctxt, Tok_Colon);
         Disp_Subtype_Indication (Ctxt, St_Ind);
      end if;
      Disp_Token (Ctxt, Tok_Is);
      Print (Ctxt, Get_Name (Decl));
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Object_Alias_Declaration;

   procedure Disp_Non_Object_Alias_Declaration
     (Ctxt : in out Ctxt_Class; Decl: Iir_Non_Object_Alias_Declaration)
   is
      Sig : constant Iir := Get_Alias_Signature (Decl);
   begin
      if Get_Implicit_Alias_Flag (Decl) then
         if Flag_Implicit then
            OOB.Put ("-- ");
         else
            return;
         end if;
      end if;

      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Alias);
      Disp_Function_Name (Ctxt, Decl);
      Disp_Token (Ctxt, Tok_Is);
      Print (Ctxt, Get_Name (Decl));
      if Sig /= Null_Iir then
         Disp_Signature (Ctxt, Sig);
      end if;
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Non_Object_Alias_Declaration;

   procedure Disp_File_Declaration
     (Ctxt : in out Ctxt_Class; Decl: Iir_File_Declaration)
   is
      Next_Decl : Iir;
      Expr: Iir;
   begin
      Disp_Token (Ctxt, Tok_File);
      Disp_Name_Of (Ctxt, Decl);
      Next_Decl := Decl;
      while Get_Has_Identifier_List (Next_Decl) loop
         Next_Decl := Get_Chain (Next_Decl);
         Disp_Token (Ctxt, Tok_Comma);
         Disp_Name_Of (Ctxt, Next_Decl);
      end loop;
      Disp_Token (Ctxt, Tok_Colon);
      Disp_Subtype_Indication (Ctxt, Or_Else (Get_Subtype_Indication (Decl),
                                              Get_Type (Decl)));
      if Vhdl_Std = Vhdl_87 then
         Disp_Token (Ctxt, Tok_Is);
         if Get_Has_Mode (Decl) then
            Disp_Mode (Ctxt, Get_Mode (Decl));
         end if;
         Print (Ctxt, Get_File_Logical_Name (Decl));
      else
         Expr := Get_File_Open_Kind (Decl);
         if Expr /= Null_Iir then
            Disp_Token (Ctxt, Tok_Open);
            Print (Ctxt, Expr);
         end if;
         Expr := Get_File_Logical_Name (Decl);
         if Expr /= Null_Iir then
            Disp_Token (Ctxt, Tok_Is);
            Print (Ctxt, Expr);
         end if;
      end if;
      Disp_Token (Ctxt, Tok_Semi_Colon);
   end Disp_File_Declaration;

   procedure Disp_Branch_Quantity_Declaration
     (Ctxt : in out Ctxt_Class; Head : Iir)
   is
      Term : Iir;
      Decl : Iir;
      First_Decl : Iir;
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Quantity);

      Decl := Head;
      if Get_Kind (Decl) = Iir_Kind_Across_Quantity_Declaration then
         loop
            Disp_Name_Of (Ctxt, Decl);
            if not Get_Has_Identifier_List (Decl) then
               Decl := Null_Iir;
               exit;
            end if;
            Decl := Get_Chain (Decl);
            exit when Get_Kind (Decl) /= Iir_Kind_Across_Quantity_Declaration;
            Disp_Token (Ctxt, Tok_Comma);
         end loop;

         Disp_Tolerance_Opt (Ctxt, Head);
         Disp_Default_Value_Opt (Ctxt, Head);
         Disp_Token (Ctxt, Tok_Across);
      end if;

      if Decl /= Null_Iir then
         pragma Assert
           (Get_Kind (Decl) = Iir_Kind_Through_Quantity_Declaration);

         First_Decl := Decl;
         loop
            Disp_Name_Of (Ctxt, Decl);
            if not Get_Has_Identifier_List (Decl) then
               Decl := Null_Iir;
               exit;
            end if;
            Decl := Get_Chain (Decl);
            exit when Get_Kind (Decl) /= Iir_Kind_Through_Quantity_Declaration;
            Disp_Token (Ctxt, Tok_Comma);
         end loop;

         Disp_Tolerance_Opt (Ctxt, First_Decl);
         Disp_Default_Value_Opt (Ctxt, First_Decl);
         Disp_Token (Ctxt, Tok_Through);
      end if;

      Print (Ctxt, Get_Plus_Terminal_Name (Head));
      Term := Get_Minus_Terminal_Name (Head);
      if Term /= Null_Iir then
         Disp_Token (Ctxt, Tok_To);
         Print (Ctxt, Term);
      end if;

      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Branch_Quantity_Declaration;

   procedure Disp_Terminal_Declaration (Ctxt : in out Ctxt_Class; Decl: Iir)
   is
      Ndecl : Iir;
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Terminal);
      Disp_Name_Of (Ctxt, Decl);
      Ndecl := Decl;
      while Get_Has_Identifier_List (Ndecl) loop
         Disp_Token (Ctxt, Tok_Comma);
         Ndecl := Get_Chain (Ndecl);
         Disp_Name_Of (Ctxt, Ndecl);
      end loop;
      Disp_Token (Ctxt, Tok_Colon);
      Disp_Subnature_Indication (Ctxt, Get_Subnature_Indication (Decl));
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Terminal_Declaration;

   procedure Disp_Object_Declaration (Ctxt : in out Ctxt_Class; Decl: Iir)
   is
      Next_Decl : Iir;
   begin
      Start_Hbox (Ctxt);
      case Get_Kind (Decl) is
         when Iir_Kind_Variable_Declaration =>
            if Get_Shared_Flag (Decl) then
               Disp_Token (Ctxt, Tok_Shared);
            end if;
            Disp_Token (Ctxt, Tok_Variable);
         when Iir_Kind_Constant_Declaration =>
            Disp_Token (Ctxt, Tok_Constant);
         when Iir_Kind_Signal_Declaration =>
            Disp_Token (Ctxt, Tok_Signal);
         when Iir_Kind_File_Declaration =>
            Disp_File_Declaration (Ctxt, Decl);
            Close_Hbox (Ctxt);
            return;
         when Iir_Kind_Free_Quantity_Declaration
           | Iir_Kinds_Source_Quantity_Declaration =>
            Disp_Token (Ctxt, Tok_Quantity);
         when others =>
            raise Internal_Error;
      end case;
      Disp_Name_Of (Ctxt, Decl);
      Next_Decl := Decl;
      while Get_Has_Identifier_List (Next_Decl) loop
         Next_Decl := Get_Chain (Next_Decl);
         Disp_Token (Ctxt, Tok_Comma);
         Disp_Name_Of (Ctxt, Next_Decl);
      end loop;
      Disp_Token (Ctxt, Tok_Colon);
      Disp_Subtype_Indication (Ctxt, Get_Subtype_Indication (Decl));
      if Get_Kind (Decl) = Iir_Kind_Signal_Declaration then
         Disp_Signal_Kind (Ctxt, Decl);
      end if;

      case Get_Kind (Decl) is
         when Iir_Kind_Spectrum_Quantity_Declaration =>
            Disp_Token (Ctxt, Tok_Spectrum);
            Print (Ctxt, Get_Magnitude_Expression (Decl));
            Disp_Token (Ctxt, Tok_Comma);
            Print (Ctxt, Get_Phase_Expression (Decl));
         when Iir_Kind_Noise_Quantity_Declaration =>
            Disp_Token (Ctxt, Tok_Noise);
            Print (Ctxt, Get_Power_Expression (Decl));
         when others =>
            Disp_Default_Value_Opt (Ctxt, Decl);
      end case;
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Object_Declaration;

   procedure Disp_Pure (Ctxt : in out Ctxt_Class; Subprg : Iir) is
   begin
      if Get_Pure_Flag (Subprg) then
         Disp_Token (Ctxt, Tok_Pure);
      else
         Disp_Token (Ctxt, Tok_Impure);
      end if;
   end Disp_Pure;

   procedure Disp_Subprogram_Declaration
     (Ctxt : in out Ctxt_Class; Subprg: Iir; Implicit : Boolean := False)
   is
      Inter : Iir;
   begin
      if Implicit then
         OOB.Put ("-- ");
      end if;

      case Get_Kind (Subprg) is
         when Iir_Kind_Function_Declaration
           | Iir_Kind_Interface_Function_Declaration =>
            if Get_Has_Pure (Subprg) then
               Disp_Pure (Ctxt, Subprg);
            end if;
            Disp_Token (Ctxt, Tok_Function);
         when Iir_Kind_Procedure_Declaration
           | Iir_Kind_Interface_Procedure_Declaration =>
            Disp_Token (Ctxt, Tok_Procedure);
         when others =>
            raise Internal_Error;
      end case;

      Disp_Function_Name (Ctxt, Subprg);

      if Get_Has_Parameter (Subprg) then
         Disp_Token (Ctxt, Tok_Parameter);
      end if;

      Inter := Get_Interface_Declaration_Chain (Subprg);
      Disp_Interface_Chain (Ctxt, Inter, False);

      case Get_Kind (Subprg) is
         when Iir_Kind_Function_Declaration
           | Iir_Kind_Interface_Function_Declaration =>
            Disp_Token (Ctxt, Tok_Return);
            Disp_Subtype_Indication
              (Ctxt, Or_Else (Get_Return_Type_Mark (Subprg),
                              Get_Return_Type (Subprg)));
         when Iir_Kind_Procedure_Declaration
           | Iir_Kind_Interface_Procedure_Declaration =>
            null;
         when others =>
            raise Internal_Error;
      end case;
   end Disp_Subprogram_Declaration;

   procedure Disp_Subprogram_Body (Ctxt : in out Ctxt_Class; Subprg : Iir) is
   begin
      Start_Vbox (Ctxt);
      Disp_Declaration_Chain (Ctxt, Subprg);
      Close_Vbox (Ctxt);
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Begin);
      Close_Hbox (Ctxt);
      Start_Vbox (Ctxt);
      Disp_Sequential_Statements
        (Ctxt, Get_Sequential_Statement_Chain (Subprg));
      Close_Vbox (Ctxt);
      if Get_Kind (Subprg) = Iir_Kind_Function_Body then
         Disp_End (Ctxt, Subprg, Tok_Function);
      else
         Disp_End (Ctxt, Subprg, Tok_Procedure);
      end if;
   end Disp_Subprogram_Body;

   procedure Disp_Instantiation_List
     (Ctxt : in out Ctxt_Class; Insts: Iir_Flist)
   is
      El : Iir;
   begin
      case Insts is
         when Iir_Flist_All =>
            Disp_Token (Ctxt, Tok_All);
         when Iir_Flist_Others =>
            Disp_Token (Ctxt, Tok_Others);
         when others =>
            for I in Flist_First .. Flist_Last (Insts) loop
               El := Get_Nth_Element (Insts, I);
               if I /= Flist_First then
                  Disp_Token (Ctxt, Tok_Comma);
               end if;
               Print (Ctxt, El);
            end loop;
      end case;
   end Disp_Instantiation_List;

   procedure Disp_Configuration_Specification
     (Ctxt : in out Ctxt_Class; Spec : Iir_Configuration_Specification) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_For);
      Disp_Instantiation_List (Ctxt, Get_Instantiation_List (Spec));
      Disp_Token (Ctxt, Tok_Colon);
      Print (Ctxt, Get_Component_Name (Spec));
      Disp_Binding_Indication (Ctxt, Get_Binding_Indication (Spec));
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Configuration_Specification;

   procedure Disp_Disconnection_Specification
     (Ctxt : in out Ctxt_Class; Dis : Iir_Disconnection_Specification) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Disconnect);
      Disp_Instantiation_List (Ctxt, Get_Signal_List (Dis));
      Disp_Token (Ctxt, Tok_Colon);
      Print (Ctxt, Get_Type_Mark (Dis));
      Disp_Token (Ctxt, Tok_After);
      Print (Ctxt, Get_Expression (Dis));
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Disconnection_Specification;

   procedure Disp_Step_Limit_Specification
     (Ctxt : in out Ctxt_Class; Limit : Iir) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Limit);
      Disp_Instantiation_List (Ctxt, Get_Quantity_List (Limit));
      Disp_Token (Ctxt, Tok_Colon);
      Print (Ctxt, Get_Type_Mark (Limit));
      Disp_Token (Ctxt, Tok_With);
      Print (Ctxt, Get_Expression (Limit));
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Step_Limit_Specification;

   procedure Disp_Attribute_Declaration
     (Ctxt : in out Ctxt_Class; Attr : Iir_Attribute_Declaration) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Attribute);
      Disp_Identifier (Ctxt, Attr);
      Disp_Token (Ctxt, Tok_Colon);
      Print (Ctxt, Get_Type_Mark (Attr));
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Attribute_Declaration;

   procedure Disp_Attribute_Value (Ctxt : in out Ctxt_Class; Attr : Iir) is
   begin
      Disp_Name_Of (Ctxt, Get_Designated_Entity (Attr));
      Disp_Token (Ctxt, Tok_Tick);
      Disp_Identifier
        (Ctxt, Get_Attribute_Designator (Get_Attribute_Specification (Attr)));
   end Disp_Attribute_Value;

   procedure Disp_Attribute_Name (Ctxt : in out Ctxt_Class; Attr : Iir)
   is
      Sig : constant Iir := Get_Attribute_Signature (Attr);
   begin
      Print (Ctxt, Get_Prefix (Attr));
      if Sig /= Null_Iir then
         Disp_Signature (Ctxt, Sig);
      end if;
      Disp_Token (Ctxt, Tok_Tick);
      Disp_Ident (Ctxt, Get_Identifier (Attr));
   end Disp_Attribute_Name;

   procedure Disp_Entity_Kind (Ctxt : in out Ctxt_Class; Tok : Token_Type) is
   begin
      Disp_Token (Ctxt, Tok);
   end Disp_Entity_Kind;

   procedure Disp_Entity_Name_List (Ctxt : in out Ctxt_Class; List : Iir_Flist)
   is
      El : Iir;
   begin
      case List is
         when Iir_Flist_All =>
            Disp_Token (Ctxt, Tok_All);
         when Iir_Flist_Others =>
            Disp_Token (Ctxt, Tok_Others);
         when others =>
            for I in Flist_First .. Flist_Last (List) loop
               El := Get_Nth_Element (List, I);
               if I /= Flist_First then
                  Disp_Token (Ctxt, Tok_Comma);
               end if;
               Print (Ctxt, El);
            end loop;
      end case;
   end Disp_Entity_Name_List;

   procedure Disp_Attribute_Specification
     (Ctxt : in out Ctxt_Class; Attr : Iir_Attribute_Specification) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Attribute);
      Disp_Identifier (Ctxt, Get_Attribute_Designator (Attr));
      Disp_Token (Ctxt, Tok_Of);
      Disp_Entity_Name_List (Ctxt, Get_Entity_Name_List (Attr));
      Disp_Token (Ctxt, Tok_Colon);
      Disp_Entity_Kind (Ctxt, Get_Entity_Class (Attr));
      Disp_Token (Ctxt, Tok_Is);
      Print (Ctxt, Get_Expression (Attr));
      Disp_Token (Ctxt, Tok_Semi_Colon);
      Close_Hbox (Ctxt);
   end Disp_Attribute_Specification;

   procedure Disp_Protected_Type_Body
     (Ctxt : in out Ctxt_Class; Bod : Iir_Protected_Type_Body) is
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Type);
      Disp_Identifier (Ctxt, Bod);
      Disp_Token (Ctxt, Tok_Is);
      Disp_Token (Ctxt, Tok_Protected, Tok_Body);
      Close_Hbox (Ctxt);

      Start_Vbox (Ctxt);
      Disp_Declaration_Chain (Ctxt, Bod);
      Close_Vbox (Ctxt);

      Disp_End (Ctxt, Bod, Tok_Protected, Tok_Body);
   end Disp_Protected_Type_Body;

   procedure Disp_Group_Template_Declaration
     (Ctxt : in out Ctxt_Class; Decl : Iir)
   is
      Ent : Iir;
   begin
      Start_Hbox (Ctxt);
      Disp_Token (Ctxt, Tok_Group);
      Disp_Identifier (Ctxt, Decl);
      Disp_Token (Ctxt, Tok_Is, Tok_Left_Paren);
      Ent := Get_Entity_Class_Entry_Chain (Decl);
      loop
         Disp_Entity_Kind (Ctxt, Get_Entity_Class (Ent));
         Ent := Get_Chain (Ent);