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-- GHDL Run Time (GRT) - common types.
-- 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 System; use System;
with Ada.Unchecked_Conversion;
with Ada.Unchecked_Deallocation;
with Interfaces; use Interfaces;
package Grt.Types is
pragma Preelaborate (Grt.Types);
type Ghdl_B1 is new Boolean;
type Ghdl_E8 is new Unsigned_8;
type Ghdl_U32 is new Unsigned_32;
subtype Ghdl_E32 is Ghdl_U32;
type Ghdl_I32 is new Integer_32;
type Ghdl_I64 is new Integer_64;
type Ghdl_U64 is new Unsigned_64;
type Ghdl_F64 is new IEEE_Float_64;
type Ghdl_Ptr is new Address;
type Ghdl_Index_Type is mod 2 ** 32;
subtype Ghdl_Real is Ghdl_F64;
type Ghdl_Dir_Type is (Dir_To, Dir_Downto);
for Ghdl_Dir_Type use (Dir_To => 0, Dir_Downto => 1);
for Ghdl_Dir_Type'Size use 8;
-- Access to an unconstrained string.
type String_Access is access String;
type String_Cst is access constant String;
procedure Unchecked_Deallocation is new Ada.Unchecked_Deallocation
(Name => String_Access, Object => String);
subtype Std_Integer is Ghdl_I32;
type Std_Integer_Acc is access Std_Integer;
pragma Convention (C, Std_Integer_Acc);
type Std_Time is new Ghdl_I64;
Bad_Time : constant Std_Time := Std_Time'First;
type Std_Integer_Trt is record
Left : Std_Integer;
Right : Std_Integer;
Dir : Ghdl_Dir_Type;
Length : Ghdl_Index_Type;
end record;
subtype Std_Character is Character;
type Std_String_Uncons is array (Ghdl_Index_Type range <>) of Std_Character;
subtype Std_String_Base is Std_String_Uncons (Ghdl_Index_Type);
type Std_String_Basep is access all Std_String_Base;
function To_Std_String_Basep is new Ada.Unchecked_Conversion
(Source => Address, Target => Std_String_Basep);
type Std_String_Bound is record
Dim_1 : Std_Integer_Trt;
end record;
type Std_String_Boundp is access all Std_String_Bound;
function To_Std_String_Boundp is new Ada.Unchecked_Conversion
(Source => Address, Target => Std_String_Boundp);
type Std_String is record
Base : Std_String_Basep;
Bounds : Std_String_Boundp;
end record;
type Std_String_Ptr is access all Std_String;
function To_Std_String_Ptr is new Ada.Unchecked_Conversion
(Source => Address, Target => Std_String_Ptr);
type Std_Bit is ('0', '1');
type Std_Bit_Vector_Uncons is array (Ghdl_Index_Type range <>) of Std_Bit;
subtype Std_Bit_Vector_Base is Std_Bit_Vector_Uncons (Ghdl_Index_Type);
type Std_Bit_Vector_Basep is access all Std_Bit_Vector_Base;
-- An unconstrained array.
-- It is in fact a fat pointer to the base and the bounds.
type Ghdl_Uc_Array is record
Base : Address;
Bounds : Address;
end record;
type Ghdl_Uc_Array_Acc is access Ghdl_Uc_Array;
function To_Ghdl_Uc_Array_Acc is new Ada.Unchecked_Conversion
(Source => Address, Target => Ghdl_Uc_Array_Acc);
-- Verilog types.
type Ghdl_Logic32 is record
Val : Ghdl_U32;
Xz : Ghdl_U32;
end record;
type Ghdl_Logic32_Ptr is access Ghdl_Logic32;
type Ghdl_Logic32_Vec is array (Ghdl_U32) of Ghdl_Logic32;
type Ghdl_Logic32_Vptr is access Ghdl_Logic32_Vec;
function To_Ghdl_Logic32_Vptr is new Ada.Unchecked_Conversion
(Source => Address, Target => Ghdl_Logic32_Vptr);
function To_Ghdl_Logic32_Ptr is new Ada.Unchecked_Conversion
(Source => Address, Target => Ghdl_Logic32_Ptr);
-- Mimics C strings (NUL ended).
-- Note: this is 1 based.
type Ghdl_C_String is access String (Positive);
NUL : constant Character := Character'Val (0);
Nl : constant Character := Character'Val (10); -- LF, nl or '\n'.
function strlen (Str : Ghdl_C_String) return Natural;
pragma Import (C, strlen);
function Strcmp (L , R : Ghdl_C_String) return Integer;
pragma Import (C, Strcmp);
function To_Ghdl_C_String is new Ada.Unchecked_Conversion
(Source => Address, Target => Ghdl_C_String);
function To_Address is new Ada.Unchecked_Conversion
(Source => Ghdl_C_String, Target => Address);
-- Str_len.
type String_Ptr is access String (1 .. Natural'Last);
type Ghdl_Str_Len_Type is record
Len : Natural;
Str : String_Ptr;
end record;
-- Same as previous one, but using 'address.
type Ghdl_Str_Len_Address_Type is record
Len : Natural;
Str : Address;
end record;
type Ghdl_Str_Len_Ptr is access constant Ghdl_Str_Len_Type;
type Ghdl_Str_Len_Array is array (Natural) of Ghdl_Str_Len_Type;
type Ghdl_Str_Len_Array_Ptr is access all Ghdl_Str_Len_Array;
-- Location is used for errors/messages.
type Ghdl_Location is record
Filename : Ghdl_C_String;
Line : Integer;
Col : Integer;
end record;
type Ghdl_Location_Ptr is access Ghdl_Location;
function To_Ghdl_Location_Ptr is new Ada.Unchecked_Conversion
(Source => Address, Target => Ghdl_Location_Ptr);
-- Signal index.
type Sig_Table_Index is new Integer;
-- A range of signals.
type Sig_Table_Range is record
First, Last : Sig_Table_Index;
end record;
-- Simple values, used for signals.
type Mode_Type is
(Mode_B1, Mode_E8, Mode_E32, Mode_I32, Mode_I64, Mode_F64);
type Ghdl_B1_Array is array (Ghdl_Index_Type range <>) of Ghdl_B1;
subtype Ghdl_B1_Array_Base is Ghdl_B1_Array (Ghdl_Index_Type);
type Ghdl_B1_Array_Base_Ptr is access Ghdl_B1_Array_Base;
function To_Ghdl_B1_Array_Base_Ptr is new Ada.Unchecked_Conversion
(Source => Ghdl_Ptr, Target => Ghdl_B1_Array_Base_Ptr);
type Ghdl_E8_Array is array (Ghdl_Index_Type range <>) of Ghdl_E8;
subtype Ghdl_E8_Array_Base is Ghdl_E8_Array (Ghdl_Index_Type);
type Ghdl_E8_Array_Base_Ptr is access Ghdl_E8_Array_Base;
function To_Ghdl_E8_Array_Base_Ptr is new Ada.Unchecked_Conversion
(Source => Ghdl_Ptr, Target => Ghdl_E8_Array_Base_Ptr);
type Ghdl_E32_Array is array (Ghdl_Index_Type range <>) of Ghdl_E32;
subtype Ghdl_E32_Array_Base is Ghdl_E32_Array (Ghdl_Index_Type);
type Ghdl_E32_Array_Base_Ptr is access Ghdl_E32_Array_Base;
function To_Ghdl_E32_Array_Base_Ptr is new Ada.Unchecked_Conversion
(Source => Ghdl_Ptr, Target => Ghdl_E32_Array_Base_Ptr);
type Ghdl_I32_Array is array (Ghdl_Index_Type range <>) of Ghdl_I32;
type Value_Union (Mode : Mode_Type := Mode_B1) is record
case Mode is
when Mode_B1 =>
B1 : Ghdl_B1;
when Mode_E8 =>
E8 : Ghdl_E8;
when Mode_E32 =>
E32 : Ghdl_E32;
when Mode_I32 =>
I32 : Ghdl_I32;
when Mode_I64 =>
I64 : Ghdl_I64;
when Mode_F64 =>
F64 : Ghdl_F64;
end case;
end record;
pragma Unchecked_Union (Value_Union);
type Ghdl_Value_Ptr is access all Value_Union;
function To_Ghdl_Value_Ptr is new Ada.Unchecked_Conversion
(Source => Address, Target => Ghdl_Value_Ptr);
-- Ranges.
type Ghdl_Range_B1 is record
Left : Ghdl_B1;
Right : Ghdl_B1;
Dir : Ghdl_Dir_Type;
Len : Ghdl_Index_Type;
end record;
type Ghdl_Range_E8 is record
Left : Ghdl_E8;
Right : Ghdl_E8;
Dir : Ghdl_Dir_Type;
Len : Ghdl_Index_Type;
end record;
type Ghdl_Range_E32 is record
Left : Ghdl_E32;
Right : Ghdl_E32;
Dir : Ghdl_Dir_Type;
Len : Ghdl_Index_Type;
end record;
type Ghdl_Range_I32 is record
Left : Ghdl_I32;
Right : Ghdl_I32;
Dir : Ghdl_Dir_Type;
Len : Ghdl_Index_Type;
end record;
type Ghdl_Range_I64 is record
Left : Ghdl_I64;
Right : Ghdl_I64;
Dir : Ghdl_Dir_Type;
Len : Ghdl_Index_Type;
end record;
type Ghdl_Range_F64 is record
Left : Ghdl_F64;
Right : Ghdl_F64;
Dir : Ghdl_Dir_Type;
end record;
type Ghdl_Range_Type (K : Mode_Type := Mode_B1) is record
case K is
when Mode_B1 =>
B1 : Ghdl_Range_B1;
when Mode_E8 =>
E8 : Ghdl_Range_E8;
when Mode_E32 =>
E32 : Ghdl_Range_E32;
when Mode_I32 =>
I32 : Ghdl_Range_I32;
when Mode_I64 =>
P64 : Ghdl_Range_I64;
when Mode_F64 =>
F64 : Ghdl_Range_F64;
end case;
end record;
pragma Unchecked_Union (Ghdl_Range_Type);
type Ghdl_Range_Ptr is access all Ghdl_Range_Type;
function To_Ghdl_Range_Ptr is new Ada.Unchecked_Conversion
(Source => Address, Target => Ghdl_Range_Ptr);
type Ghdl_Range_Array is array (Ghdl_Index_Type range <>) of Ghdl_Range_Ptr;
type Ghdl_Indexes_Type is record
Value : Ghdl_Index_Type;
Signal : Ghdl_Index_Type;
end record;
type Ghdl_Indexes_Ptr is access all Ghdl_Indexes_Type;
function To_Ghdl_Indexes_Ptr is new Ada.Unchecked_Conversion
(Source => Address, Target => Ghdl_Indexes_Ptr);
-- For PSL counters.
type Ghdl_Index_Ptr is access all Ghdl_Index_Type;
function To_Ghdl_Index_Ptr is new Ada.Unchecked_Conversion
(Source => Address, Target => Ghdl_Index_Ptr);
-- Mode of a signal.
type Mode_Signal_Type is
(Mode_Signal,
Mode_Linkage, Mode_Buffer, Mode_Out, Mode_Inout, Mode_In,
Mode_Stable, Mode_Quiet, Mode_Delayed, Mode_Transaction, Mode_Guard,
Mode_Conv_In, Mode_Conv_Out,
Mode_End);
subtype Mode_Signal_Port is
Mode_Signal_Type range Mode_Linkage .. Mode_In;
-- Not implicit signals.
subtype Mode_Signal_User is
Mode_Signal_Type range Mode_Signal .. Mode_In;
-- Implicit signals.
subtype Mode_Signal_Implicit is
Mode_Signal_Type range Mode_Stable .. Mode_Guard;
subtype Mode_Signal_Forward is
Mode_Signal_Type range Mode_Stable .. Mode_Delayed;
-- Note: we could use system.storage_elements, but unfortunatly,
-- this doesn't work with pragma no_run_time (gnat 3.15p).
type Integer_Address is mod Memory_Size;
function To_Address is new Ada.Unchecked_Conversion
(Source => Integer_Address, Target => Address);
function To_Integer is new Ada.Unchecked_Conversion
(Source => Address, Target => Integer_Address);
-- The NOW value.
Current_Time : Std_Time;
-- The current delta cycle number.
Current_Delta : Integer;
private
pragma Export (C, Current_Time, "__ghdl_now");
end Grt.Types;
|