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author | gingold <gingold@b72b5c32-5f01-0410-b925-b5c7b92870f7> | 2005-09-24 05:10:24 +0000 |
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committer | gingold <gingold@b72b5c32-5f01-0410-b925-b5c7b92870f7> | 2005-09-24 05:10:24 +0000 |
commit | 977ff5e02c6d2f9bfdabcf8b4e98b81e2d83e849 (patch) | |
tree | 7bcf8e7aff40a8b54d4af83e90cccd73568e77bb /std_package.adb | |
download | ghdl-977ff5e02c6d2f9bfdabcf8b4e98b81e2d83e849.tar.gz ghdl-977ff5e02c6d2f9bfdabcf8b4e98b81e2d83e849.tar.bz2 ghdl-977ff5e02c6d2f9bfdabcf8b4e98b81e2d83e849.zip |
First import from sources
Diffstat (limited to 'std_package.adb')
-rw-r--r-- | std_package.adb | 921 |
1 files changed, 921 insertions, 0 deletions
diff --git a/std_package.adb b/std_package.adb new file mode 100644 index 000000000..4cf1b4521 --- /dev/null +++ b/std_package.adb @@ -0,0 +1,921 @@ +-- std.standard package declarations. +-- 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 GCC; see the file COPYING. If not, write to the Free +-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA +-- 02111-1307, USA. +with Iirs; use Iirs; +with Types; use Types; +with Files_Map; +with Name_Table; +with Str_Table; +with Std_Names; use Std_Names; +with Flags; +with Iirs_Utils; +with Sem; +with Sem_Decls; +with Iir_Chains; + +package body Std_Package is + type Bound_Array is array (Boolean) of Iir_Int64; + Low_Bound : constant Bound_Array := (False => -(2 ** 31), + True => -(2 ** 63)); + High_Bound : constant Bound_Array := (False => (2 ** 31) - 1, + True => (2 ** 63) - 1); + + Std_Location: Location_Type := Location_Nil; + Std_Filename : Name_Id := Null_Identifier; + + function Create_Std_Iir (Kind : Iir_Kind) return Iir + is + Res : Iir; + begin + Res := Create_Iir (Kind); + Set_Location (Res, Std_Location); + return Res; + end Create_Std_Iir; + + procedure Create_First_Nodes + is + begin + Std_Filename := Name_Table.Get_Identifier ("*std_standard*"); + Std_Location := Files_Map.Source_File_To_Location + (Files_Map.Create_Virtual_Source_File (Std_Filename)); + + if Create_Iir_Error /= Error_Mark then + raise Internal_Error; + end if; + Set_Location (Error_Mark, Std_Location); + + if Create_Std_Iir (Iir_Kind_Integer_Type_Definition) + /= Universal_Integer_Type_Definition + then + raise Internal_Error; + end if; + + if Create_Std_Iir (Iir_Kind_Floating_Type_Definition) + /= Universal_Real_Type_Definition + then + raise Internal_Error; + end if; + + if Create_Std_Iir (Iir_Kind_Integer_Type_Definition) + /= Convertible_Integer_Type_Definition + then + raise Internal_Error; + end if; + + if Create_Std_Iir (Iir_Kind_Floating_Type_Definition) + /= Convertible_Real_Type_Definition + then + raise Internal_Error; + end if; + end Create_First_Nodes; + + procedure Create_Std_Standard_Package (Parent : Iir_Library_Declaration) + is + function Get_Std_Character (Char: Character) return Name_Id + renames Name_Table.Get_Identifier; + + procedure Set_Std_Identifier (Decl : Iir; Name : Name_Id) is + begin + Set_Identifier (Decl, Name); + Set_Visible_Flag (Decl, True); + end Set_Std_Identifier; + + function Create_Std_Integer (Val : Iir_Int64; Lit_Type : Iir) + return Iir_Integer_Literal + is + Res : Iir_Integer_Literal; + begin + Res := Create_Std_Iir (Iir_Kind_Integer_Literal); + Set_Value (Res, Val); + Set_Type (Res, Lit_Type); + Set_Expr_Staticness (Res, Locally); + return Res; + end Create_Std_Integer; + + function Create_Std_Fp (Val : Iir_Fp64; Lit_Type : Iir) + return Iir_Floating_Point_Literal + is + Res : Iir_Floating_Point_Literal; + begin + Res := Create_Std_Iir (Iir_Kind_Floating_Point_Literal); + Set_Fp_Value (Res, Val); + Set_Type (Res, Lit_Type); + Set_Expr_Staticness (Res, Locally); + return Res; + end Create_Std_Fp; + + function Create_Std_Range_Expr (Left, Right : Iir; Rtype : Iir) + return Iir + is + Res : Iir; + begin + Res := Create_Std_Iir (Iir_Kind_Range_Expression); + Set_Left_Limit (Res, Left); + Set_Direction (Res, Iir_To); + Set_Right_Limit (Res, Right); + Set_Expr_Staticness (Res, Locally); + Set_Type (Res, Rtype); + return Res; + end Create_Std_Range_Expr; + + function Create_Std_Literal + (Name : Name_Id; Sub_Type : Iir_Enumeration_Type_Definition) + return Iir_Enumeration_Literal + is + Res : Iir_Enumeration_Literal; + List : Iir_List; + begin + Res := Create_Std_Iir (Iir_Kind_Enumeration_Literal); + List := Get_Enumeration_Literal_List (Sub_Type); + Set_Std_Identifier (Res, Name); + Set_Type (Res, Sub_Type); + Set_Expr_Staticness (Res, Locally); + Set_Name_Staticness (Res, Locally); + Set_Base_Name (Res, Res); + Set_Enumeration_Decl (Res, Res); + Set_Enum_Pos (Res, Iir_Int32 (Get_Nbr_Elements (List))); + Sem.Compute_Subprogram_Hash (Res); + Append_Element (List, Res); + return Res; + end Create_Std_Literal; + + -- Append a declaration DECL to Standard_Package. + Last_Decl : Iir := Null_Iir; + procedure Add_Decl (Decl : Iir) is + begin + if Last_Decl = Null_Iir then + Set_Declaration_Chain (Standard_Package, Decl); + else + Set_Chain (Last_Decl, Decl); + end if; + Last_Decl := Decl; + end Add_Decl; + + procedure Add_Implicit_Operations (Decl : Iir) + is + Nxt : Iir; + begin + Sem_Decls.Create_Implicit_Operations (Decl, True); + loop + Nxt := Get_Chain (Last_Decl); + exit when Nxt = Null_Iir; + Last_Decl := Nxt; + end loop; + end Add_Implicit_Operations; + + procedure Create_Integer_Type (Type_Definition : Iir; + Type_Decl : out Iir; + Type_Name : Name_Id) + is + begin + --Integer_Type_Definition := + -- Create_Std_Iir (Iir_Kind_Integer_Type_Definition); + Set_Base_Type (Type_Definition, Type_Definition); + Set_Type_Staticness (Type_Definition, Locally); + Set_Signal_Type_Flag (Type_Definition, True); + + Type_Decl := Create_Std_Iir (Iir_Kind_Anonymous_Type_Declaration); + Set_Identifier (Type_Decl, Type_Name); + Set_Type (Type_Decl, Type_Definition); + Set_Type_Declarator (Type_Definition, Type_Decl); + end Create_Integer_Type; + + procedure Create_Integer_Subtype (Type_Definition : Iir; + Type_Decl : Iir; + Subtype_Definition : out Iir; + Subtype_Decl : out Iir) + is + Constraint : Iir; + begin + Subtype_Definition := + Create_Std_Iir (Iir_Kind_Integer_Subtype_Definition); + Set_Base_Type (Subtype_Definition, Type_Definition); + Constraint := Create_Std_Range_Expr + (Create_Std_Integer (Low_Bound (Flags.Flag_Integer_64), + Universal_Integer_Type_Definition), + Create_Std_Integer (High_Bound (Flags.Flag_Integer_64), + Universal_Integer_Type_Definition), + Universal_Integer_Type_Definition); + Set_Range_Constraint (Subtype_Definition, Constraint); + Set_Type_Staticness (Subtype_Definition, Locally); + Set_Signal_Type_Flag (Subtype_Definition, True); + + -- type is + Subtype_Decl := Create_Std_Iir (Iir_Kind_Subtype_Declaration); + Set_Std_Identifier (Subtype_Decl, Get_Identifier (Type_Decl)); + Set_Type (Subtype_Decl, Subtype_Definition); + Set_Type_Declarator (Subtype_Definition, Subtype_Decl); + Set_Subtype_Definition (Type_Decl, Subtype_Definition); + end Create_Integer_Subtype; + + begin + Std_Standard_File := Create_Std_Iir (Iir_Kind_Design_File); + Set_Parent (Std_Standard_File, Parent); + Set_Design_File_Filename (Std_Standard_File, Std_Filename); + Std_Standard_Unit := Create_Std_Iir (Iir_Kind_Design_Unit); + Set_Std_Identifier (Std_Standard_Unit, Name_Standard); + Set_First_Design_Unit (Std_Standard_File, Std_Standard_Unit); + Set_Last_Design_Unit (Std_Standard_File, Std_Standard_Unit); + Set_Design_File (Std_Standard_Unit, Std_Standard_File); + Set_Date_State (Std_Standard_Unit, Date_Analyze); + Set_Dependence_List (Std_Standard_Unit, Create_Iir_List); + + declare + use Str_Table; + Std_Time_Stamp : constant Time_Stamp_String := + "20020601000000.000"; + Id : Time_Stamp_Id; + begin + Id := Time_Stamp_Id (Str_Table.Start); + for I in Time_Stamp_String'Range loop + Str_Table.Append (Std_Time_Stamp (I)); + end loop; + Str_Table.Finish; + Set_Analysis_Time_Stamp (Std_Standard_File, Id); + end; + + Set_Date (Std_Standard_Unit, Date_Valid'First); + + -- Adding "package STANDARD is" + Standard_Package := Create_Std_Iir (Iir_Kind_Package_Declaration); + Set_Identifier (Standard_Package, Name_Standard); + Set_Need_Body (Standard_Package, False); + + Set_Library_Unit (Std_Standard_Unit, Standard_Package); + Set_Design_Unit (Standard_Package, Std_Standard_Unit); + + -- boolean + begin + -- (false, true) + Boolean_Type_Definition := + Create_Std_Iir (Iir_Kind_Enumeration_Type_Definition); + Set_Base_Type (Boolean_Type_Definition, Boolean_Type_Definition); + Set_Enumeration_Literal_List + (Boolean_Type_Definition, Create_Iir_List); + Boolean_False := Create_Std_Literal + (Name_False, Boolean_Type_Definition); + Boolean_True := Create_Std_Literal + (Name_True, Boolean_Type_Definition); + Set_Type_Staticness (Boolean_Type_Definition, Locally); + Set_Signal_Type_Flag (Boolean_Type_Definition, True); + + -- type boolean is + Boolean_Type := Create_Std_Iir (Iir_Kind_Type_Declaration); + Set_Std_Identifier (Boolean_Type, Name_Boolean); + Set_Type (Boolean_Type, Boolean_Type_Definition); + Add_Decl (Boolean_Type); + Set_Type_Declarator (Boolean_Type_Definition, Boolean_Type); + + Iirs_Utils.Create_Range_Constraint_For_Enumeration_Type + (Boolean_Type_Definition); + Add_Implicit_Operations (Boolean_Type); + end; + + -- bit. + begin + -- ('0', '1') + Bit_Type_Definition := + Create_Std_Iir (Iir_Kind_Enumeration_Type_Definition); + Set_Enumeration_Literal_List + (Bit_Type_Definition, Create_Iir_List); + Set_Base_Type (Bit_Type_Definition, Bit_Type_Definition); + Bit_0 := Create_Std_Literal + (Get_Std_Character ('0'), Bit_Type_Definition); + Bit_1 := Create_Std_Literal + (Get_Std_Character ('1'), Bit_Type_Definition); + Set_Type_Staticness (Bit_Type_Definition, Locally); + Set_Signal_Type_Flag (Bit_Type_Definition, True); + + -- type bit is + Bit_Type := Create_Std_Iir (Iir_Kind_Type_Declaration); + Set_Std_Identifier (Bit_Type, Name_Bit); + Set_Type (Bit_Type, Bit_Type_Definition); + Add_Decl (Bit_Type); + Set_Type_Declarator (Bit_Type_Definition, Bit_Type); + + Iirs_Utils.Create_Range_Constraint_For_Enumeration_Type + (Bit_Type_Definition); + Add_Implicit_Operations (Bit_Type); + end; + + -- characters. + declare + El: Iir; + begin + Character_Type_Definition := + Create_Std_Iir (Iir_Kind_Enumeration_Type_Definition); + Set_Base_Type (Character_Type_Definition, Character_Type_Definition); + Set_Enumeration_Literal_List + (Character_Type_Definition, Create_Iir_List); + + for I in Name_Nul .. Name_Usp loop + El := Create_Std_Literal (I, Character_Type_Definition); + end loop; + for I in Character'(' ') .. Character'('~') loop + El := Create_Std_Literal + (Get_Std_Character (I), Character_Type_Definition); + end loop; + El := Create_Std_Literal (Name_Del, Character_Type_Definition); + if Flags.Vhdl_Std /= Vhdl_87 then + for I in Name_C128 .. Name_C159 loop + El := Create_Std_Literal (I, Character_Type_Definition); + end loop; + for I in Character'Val (160) .. Character'Val (255) loop + El := Create_Std_Literal + (Get_Std_Character (I), Character_Type_Definition); + end loop; + end if; + Set_Type_Staticness (Character_Type_Definition, Locally); + Set_Signal_Type_Flag (Character_Type_Definition, True); + + -- type character is + Character_Type := Create_Std_Iir (Iir_Kind_Type_Declaration); + Set_Std_Identifier (Character_Type, Name_Character); + Set_Type (Character_Type, Character_Type_Definition); + Add_Decl (Character_Type); + Set_Type_Declarator (Character_Type_Definition, + Character_Type); + + Iirs_Utils.Create_Range_Constraint_For_Enumeration_Type + (Character_Type_Definition); + Add_Implicit_Operations (Character_Type); + end; + + -- severity level. + begin + -- (note, warning, error, failure) + Severity_Level_Type_Definition := + Create_Std_Iir (Iir_Kind_Enumeration_Type_Definition); + Set_Base_Type (Severity_Level_Type_Definition, + Severity_Level_Type_Definition); + Set_Enumeration_Literal_List + (Severity_Level_Type_Definition, Create_Iir_List); + + Severity_Level_Note := Create_Std_Literal + (Name_Note, Severity_Level_Type_Definition); + Severity_Level_Warning := Create_Std_Literal + (Name_Warning, Severity_Level_Type_Definition); + Severity_Level_Error := Create_Std_Literal + (Name_Error, Severity_Level_Type_Definition); + Severity_Level_Failure := Create_Std_Literal + (Name_Failure, Severity_Level_Type_Definition); + Set_Type_Staticness (Severity_Level_Type_Definition, Locally); + Set_Signal_Type_Flag (Severity_Level_Type_Definition, True); + + -- type severity_level is + Severity_Level_Type := Create_Std_Iir (Iir_Kind_Type_Declaration); + Set_Std_Identifier (Severity_Level_Type, Name_Severity_Level); + Set_Type (Severity_Level_Type, Severity_Level_Type_Definition); + Add_Decl (Severity_Level_Type); + Set_Type_Declarator (Severity_Level_Type_Definition, + Severity_Level_Type); + + Iirs_Utils.Create_Range_Constraint_For_Enumeration_Type + (Severity_Level_Type_Definition); + Add_Implicit_Operations (Severity_Level_Type); + end; + + -- universal types. + begin + Create_Integer_Type (Universal_Integer_Type_Definition, + Universal_Integer_Type, + Name_Universal_Integer); + Add_Decl (Universal_Integer_Type); + + Create_Integer_Subtype (Universal_Integer_Type_Definition, + Universal_Integer_Type, + Universal_Integer_Subtype_Definition, + Universal_Integer_Subtype); + + Add_Decl (Universal_Integer_Subtype); + Set_Subtype_Definition (Universal_Integer_Type, + Universal_Integer_Subtype_Definition); + + -- Do not create implicit operations yet, since "**" needs integer + -- type. + end; + + -- Universal integer constant 1. + Universal_Integer_One := + Create_Std_Integer (1, Universal_Integer_Type_Definition); + + -- Universal real. + declare + Constraint : Iir_Range_Expression; + begin + Set_Base_Type (Universal_Real_Type_Definition, + Universal_Real_Type_Definition); + Set_Type_Staticness (Universal_Real_Type_Definition, Locally); + Set_Signal_Type_Flag (Universal_Real_Type_Definition, True); + + Universal_Real_Type := + Create_Std_Iir (Iir_Kind_Anonymous_Type_Declaration); + Set_Identifier (Universal_Real_Type, Name_Universal_Real); + Set_Type (Universal_Real_Type, Universal_Real_Type_Definition); + Set_Type_Declarator (Universal_Real_Type_Definition, + Universal_Real_Type); + Add_Decl (Universal_Real_Type); + + Universal_Real_Subtype_Definition := + Create_Std_Iir (Iir_Kind_Floating_Subtype_Definition); + Set_Base_Type (Universal_Real_Subtype_Definition, + Universal_Real_Type_Definition); + Constraint := Create_Std_Range_Expr + (Create_Std_Fp (Iir_Fp64'First, Universal_Real_Type_Definition), + Create_Std_Fp (Iir_Fp64'Last, Universal_Real_Type_Definition), + Universal_Real_Type_Definition); + Set_Range_Constraint (Universal_Real_Subtype_Definition, Constraint); + Set_Type_Staticness (Universal_Real_Subtype_Definition, Locally); + Set_Signal_Type_Flag (Universal_Real_Subtype_Definition, True); + + -- type is + Universal_Real_Subtype := + Create_Std_Iir (Iir_Kind_Subtype_Declaration); + Set_Identifier (Universal_Real_Subtype, Name_Universal_Real); + Set_Type (Universal_Real_Subtype, Universal_Real_Subtype_Definition); + Set_Type_Declarator (Universal_Real_Subtype_Definition, + Universal_Real_Subtype); + Set_Subtype_Definition (Universal_Real_Type, + Universal_Real_Subtype_Definition); + + Add_Decl (Universal_Real_Subtype); + + -- Do not create implicit operations yet, since "**" needs integer + -- type. + end; + + -- Convertible type. + begin + Create_Integer_Type (Convertible_Integer_Type_Definition, + Convertible_Integer_Type, + Name_Convertible_Integer); + Create_Integer_Subtype (Convertible_Integer_Type_Definition, + Convertible_Integer_Type, + Convertible_Integer_Subtype_Definition, + Convertible_Integer_Subtype); + + -- Not added in std.standard. + end; + + begin + Set_Base_Type (Convertible_Real_Type_Definition, + Convertible_Real_Type_Definition); + Set_Type_Staticness (Convertible_Real_Type_Definition, Locally); + Set_Signal_Type_Flag (Convertible_Real_Type_Definition, True); + + Convertible_Real_Type := + Create_Std_Iir (Iir_Kind_Anonymous_Type_Declaration); + Set_Identifier (Convertible_Real_Type, Name_Convertible_Real); + Set_Type (Convertible_Real_Type, Convertible_Real_Type_Definition); + Set_Type_Declarator (Convertible_Real_Type_Definition, + Convertible_Real_Type); + end; + + -- integer type. + begin + Integer_Type_Definition := + Create_Std_Iir (Iir_Kind_Integer_Type_Definition); + Create_Integer_Type (Integer_Type_Definition, + Integer_Type, + Name_Integer); + Add_Decl (Integer_Type); + + Add_Implicit_Operations (Integer_Type); + Add_Implicit_Operations (Universal_Integer_Type); + Add_Implicit_Operations (Universal_Real_Type); + + Create_Integer_Subtype (Integer_Type_Definition, + Integer_Type, + Integer_Subtype_Definition, + Integer_Subtype); + Add_Decl (Integer_Subtype); + end; + + -- Real type. + declare + Constraint : Iir_Range_Expression; + begin + Real_Type_Definition := + Create_Std_Iir (Iir_Kind_Floating_Type_Definition); + Set_Base_Type (Real_Type_Definition, Real_Type_Definition); + Set_Type_Staticness (Real_Type_Definition, Locally); + Set_Signal_Type_Flag (Real_Type_Definition, True); + + Real_Type := Create_Std_Iir (Iir_Kind_Anonymous_Type_Declaration); + Set_Identifier (Real_Type, Name_Real); + Set_Type (Real_Type, Real_Type_Definition); + Set_Type_Declarator (Real_Type_Definition, Real_Type); + Add_Decl (Real_Type); + + Add_Implicit_Operations (Real_Type); + + Real_Subtype_Definition := + Create_Std_Iir (Iir_Kind_Floating_Subtype_Definition); + Set_Base_Type (Real_Subtype_Definition, Real_Type_Definition); + Constraint := Create_Std_Range_Expr + (Create_Std_Fp (Iir_Fp64'First, Universal_Real_Type_Definition), + Create_Std_Fp (Iir_Fp64'Last, Universal_Real_Type_Definition), + Universal_Real_Type_Definition); + Set_Range_Constraint (Real_Subtype_Definition, Constraint); + Set_Type_Staticness (Real_Subtype_Definition, Locally); + Set_Signal_Type_Flag (Real_Subtype_Definition, True); + + Real_Subtype := Create_Std_Iir (Iir_Kind_Subtype_Declaration); + Set_Std_Identifier (Real_Subtype, Name_Real); + Set_Type (Real_Subtype, Real_Subtype_Definition); + Set_Type_Declarator (Real_Subtype_Definition, Real_Subtype); + Add_Decl (Real_Subtype); + + Set_Subtype_Definition (Real_Type, Real_Subtype_Definition); + end; + + -- natural subtype + declare + Constraint : Iir_Range_Expression; + begin + Natural_Subtype_Definition := + Create_Std_Iir (Iir_Kind_Integer_Subtype_Definition); + Set_Base_Type (Natural_Subtype_Definition, Integer_Type_Definition); + Constraint := Create_Std_Range_Expr + (Create_Std_Integer (0, Integer_Type_Definition), + Create_Std_Integer (High_Bound (Flags.Flag_Integer_64), + Integer_Type_Definition), + Integer_Type_Definition); + Set_Range_Constraint (Natural_Subtype_Definition, Constraint); + Set_Type_Staticness (Natural_Subtype_Definition, Locally); + Set_Signal_Type_Flag (Natural_Subtype_Definition, True); + + Natural_Subtype := Create_Std_Iir (Iir_Kind_Subtype_Declaration); + Set_Std_Identifier (Natural_Subtype, Name_Natural); + Set_Type (Natural_Subtype, Natural_Subtype_Definition); + Add_Decl (Natural_Subtype); + Set_Type_Declarator (Natural_Subtype_Definition, Natural_Subtype); + end; + + -- positive subtype + declare + Constraint : Iir_Range_Expression; + begin + Positive_Subtype_Definition := + Create_Std_Iir (Iir_Kind_Integer_Subtype_Definition); + Set_Base_Type (Positive_Subtype_Definition, + Integer_Type_Definition); + Constraint := Create_Std_Range_Expr + (Create_Std_Integer (1, Integer_Type_Definition), + Create_Std_Integer (High_Bound (Flags.Flag_Integer_64), + Integer_Type_Definition), + Integer_Type_Definition); + Set_Range_Constraint (Positive_Subtype_Definition, Constraint); + Set_Type_Staticness (Positive_Subtype_Definition, Locally); + Set_Signal_Type_Flag (Positive_Subtype_Definition, True); + + Positive_Subtype := Create_Std_Iir (Iir_Kind_Subtype_Declaration); + Set_Std_Identifier (Positive_Subtype, Name_Positive); + Set_Type (Positive_Subtype, Positive_Subtype_Definition); + Add_Decl (Positive_Subtype); + Set_Type_Declarator (Positive_Subtype_Definition, Positive_Subtype); + end; + + -- string type. + -- type string is array (positive range <>) of character; + begin + String_Type_Definition := + Create_Std_Iir (Iir_Kind_Array_Type_Definition); + Set_Base_Type (String_Type_Definition, String_Type_Definition); + Set_Index_Subtype_List (String_Type_Definition, Create_Iir_List); + Append_Element (Get_Index_Subtype_List (String_Type_Definition), + Positive_Subtype_Definition); + Set_Element_Subtype (String_Type_Definition, + Character_Type_Definition); + Set_Type_Staticness (String_Type_Definition, None); + Set_Signal_Type_Flag (String_Type_Definition, True); + + String_Type := Create_Std_Iir (Iir_Kind_Type_Declaration); + Set_Std_Identifier (String_Type, Name_String); + Set_Type (String_Type, String_Type_Definition); + Add_Decl (String_Type); + Set_Type_Declarator (String_Type_Definition, String_Type); + + Add_Implicit_Operations (String_Type); + end; + + -- bit_vector type. + -- type bit_vector is array (natural range <>) of bit; + begin + Bit_Vector_Type_Definition := + Create_Std_Iir (Iir_Kind_Array_Type_Definition); + Set_Base_Type (Bit_Vector_Type_Definition, + Bit_Vector_Type_Definition); + Set_Index_Subtype_List (Bit_Vector_Type_Definition, Create_Iir_List); + Append_Element (Get_Index_Subtype_List (Bit_Vector_Type_Definition), + Natural_Subtype_Definition); + Set_Element_Subtype (Bit_Vector_Type_Definition, Bit_Type_Definition); + Set_Type_Staticness (Bit_Vector_Type_Definition, None); + Set_Signal_Type_Flag (Bit_Vector_Type_Definition, True); + + Bit_Vector_Type := Create_Std_Iir (Iir_Kind_Type_Declaration); + Set_Std_Identifier (Bit_Vector_Type, Name_Bit_Vector); + Set_Type (Bit_Vector_Type, Bit_Vector_Type_Definition); + Add_Decl (Bit_Vector_Type); + Set_Type_Declarator (Bit_Vector_Type_Definition, Bit_Vector_Type); + + Add_Implicit_Operations (Bit_Vector_Type); + end; + + -- time definition + declare + Time_Staticness : Iir_Staticness; + Last_Unit : Iir_Unit_Declaration; + use Iir_Chains.Unit_Chain_Handling; + + function Create_Std_Phys_Lit (Value : Iir_Int64; + Unit : Iir_Unit_Declaration) + return Iir_Physical_Int_Literal + is + Lit: Iir_Physical_Int_Literal; + begin + Lit := Create_Std_Iir (Iir_Kind_Physical_Int_Literal); + Set_Value (Lit, Value); + Set_Unit_Name (Lit, Unit); + Set_Type (Lit, Time_Type_Definition); + Set_Expr_Staticness (Lit, Time_Staticness); + return Lit; + end Create_Std_Phys_Lit; + + procedure Create_Unit (Unit : out Iir_Unit_Declaration; + Multiplier_Value : Iir_Int64; + Multiplier : in Iir_Unit_Declaration; + Name : Name_Id) + is + Lit: Iir_Physical_Int_Literal; + begin + Unit := Create_Std_Iir (Iir_Kind_Unit_Declaration); + Set_Std_Identifier (Unit, Name); + Set_Type (Unit, Time_Type_Definition); + + Lit := Create_Std_Phys_Lit (Multiplier_Value, Multiplier); + Set_Physical_Literal (Unit, Lit); + Lit := Create_Std_Phys_Lit + (Multiplier_Value + * Get_Value (Get_Physical_Unit_Value (Multiplier)), + Get_Unit_Name (Get_Physical_Unit_Value (Multiplier))); + Set_Physical_Unit_Value (Unit, Lit); + + Set_Expr_Staticness (Unit, Time_Staticness); + Append (Last_Unit, Time_Type_Definition, Unit); + end Create_Unit; + + Time_Fs_Unit: Iir_Unit_Declaration; + Time_Ps_Unit: Iir_Unit_Declaration; + Time_Ns_Unit: Iir_Unit_Declaration; + Time_Us_Unit: Iir_Unit_Declaration; + Time_Ms_Unit: Iir_Unit_Declaration; + Time_Sec_Unit: Iir_Unit_Declaration; + Time_Min_Unit: Iir_Unit_Declaration; + Time_Hr_Unit: Iir_Unit_Declaration; + Constraint : Iir_Range_Expression; + begin + if Flags.Vhdl_Std >= Vhdl_93c then + Time_Staticness := Globally; + else + Time_Staticness := Locally; + end if; + + Time_Type_Definition := + Create_Std_Iir (Iir_Kind_Physical_Type_Definition); + Set_Base_Type (Time_Type_Definition, Time_Type_Definition); + Set_Type_Staticness (Time_Type_Definition, Locally);--Time_Staticness + Set_Signal_Type_Flag (Time_Type_Definition, True); + + Build_Init (Last_Unit); + + Time_Fs_Unit := Create_Std_Iir (Iir_Kind_Unit_Declaration); + Set_Std_Identifier (Time_Fs_Unit, Name_Fs); + Set_Type (Time_Fs_Unit, Time_Type_Definition); + Set_Expr_Staticness (Time_Fs_Unit, Time_Staticness); + Set_Physical_Unit_Value + (Time_Fs_Unit, Create_Std_Phys_Lit (1, Time_Fs_Unit)); + Append (Last_Unit, Time_Type_Definition, Time_Fs_Unit); + + Create_Unit (Time_Ps_Unit, 1000, Time_Fs_Unit, Name_Ps); + Create_Unit (Time_Ns_Unit, 1000, Time_Ps_Unit, Name_Ns); + Create_Unit (Time_Us_Unit, 1000, Time_Ns_Unit, Name_Us); + Create_Unit (Time_Ms_Unit, 1000, Time_Us_Unit, Name_Ms); + Create_Unit (Time_Sec_Unit, 1000, Time_Ms_Unit, Name_Sec); + Create_Unit (Time_Min_Unit, 60, Time_Sec_Unit, Name_Min); + Create_Unit (Time_Hr_Unit, 60, Time_Min_Unit, Name_Hr); + + -- type is + Time_Type := Create_Std_Iir (Iir_Kind_Anonymous_Type_Declaration); + Set_Identifier (Time_Type, Name_Time); + Set_Type (Time_Type, Time_Type_Definition); + Set_Type_Declarator (Time_Type_Definition, Time_Type); + Add_Decl (Time_Type); + + Add_Implicit_Operations (Time_Type); + + Time_Subtype_Definition := + Create_Std_Iir (Iir_Kind_Physical_Subtype_Definition); + Constraint := Create_Std_Range_Expr + (Create_Std_Phys_Lit (Low_Bound (Flags.Flag_Time_64), + Time_Fs_Unit), + Create_Std_Phys_Lit (High_Bound (Flags.Flag_Time_64), + Time_Fs_Unit), + Time_Type_Definition); + Set_Range_Constraint (Time_Subtype_Definition, Constraint); + Set_Base_Type (Time_Subtype_Definition, Time_Type_Definition); + --Set_Type_Mark (Time_Subtype_Definition, Time_Type_Definition); + Set_Type_Staticness (Time_Subtype_Definition, Time_Staticness); + Set_Signal_Type_Flag (Time_Subtype_Definition, True); + + -- subtype + Time_Subtype := Create_Std_Iir (Iir_Kind_Subtype_Declaration); + Set_Std_Identifier (Time_Subtype, Name_Time); + Set_Type (Time_Subtype, Time_Subtype_Definition); + Set_Type_Declarator (Time_Subtype_Definition, Time_Subtype); + Add_Decl (Time_Subtype); + Set_Subtype_Definition (Time_Type, Time_Subtype_Definition); + + -- The default time base. + case Flags.Time_Resolution is + when 'f' => + Time_Base := Time_Fs_Unit; + when 'p' => + Time_Base := Time_Ps_Unit; + when 'n' => + Time_Base := Time_Ns_Unit; + when 'u' => + Time_Base := Time_Us_Unit; + when 'm' => + Time_Base := Time_Ms_Unit; + when 's' => + Time_Base := Time_Sec_Unit; + when 'M' => + Time_Base := Time_Min_Unit; + when 'h' => + Time_Base := Time_Hr_Unit; + when others => + raise Internal_Error; + end case; + + -- VHDL93 + -- subtype DELAY_LENGTH is TIME range 0 to TIME'HIGH + if Flags.Vhdl_Std >= Vhdl_93c then + Delay_Length_Subtype_Definition := + Create_Std_Iir (Iir_Kind_Physical_Subtype_Definition); + Set_Type_Mark (Delay_Length_Subtype_Definition, + Time_Subtype_Definition); + Constraint := Create_Std_Range_Expr + (Create_Std_Phys_Lit (0, Time_Fs_Unit), + Create_Std_Phys_Lit (High_Bound (Flags.Flag_Time_64), + Time_Fs_Unit), + Time_Type_Definition); + Set_Range_Constraint (Delay_Length_Subtype_Definition, Constraint); + Set_Base_Type + (Delay_Length_Subtype_Definition, Time_Type_Definition); + Set_Type_Staticness + (Delay_Length_Subtype_Definition, Time_Staticness); + Set_Signal_Type_Flag (Delay_Length_Subtype_Definition, True); + + Delay_Length_Subtype := + Create_Std_Iir (Iir_Kind_Subtype_Declaration); + Set_Std_Identifier (Delay_Length_Subtype, Name_Delay_Length); + Set_Type (Delay_Length_Subtype, Delay_Length_Subtype_Definition); + Set_Type_Declarator + (Delay_Length_Subtype_Definition, Delay_Length_Subtype); + Add_Decl (Delay_Length_Subtype); + else + Delay_Length_Subtype_Definition := Null_Iir; + Delay_Length_Subtype := Null_Iir; + end if; + end; + + -- VHDL87: + -- function NOW return TIME + -- + -- impure function NOW return DELAY_LENGTH. + declare + Function_Now : Iir_Implicit_Function_Declaration; + begin + Function_Now := + Create_Std_Iir (Iir_Kind_Implicit_Function_Declaration); + Set_Std_Identifier (Function_Now, Std_Names.Name_Now); + if Flags.Vhdl_Std = Vhdl_87 then + Set_Return_Type (Function_Now, Time_Subtype_Definition); + else + Set_Return_Type (Function_Now, Delay_Length_Subtype_Definition); + end if; + if Flags.Vhdl_Std = Vhdl_02 then + Set_Pure_Flag (Function_Now, True); + else + Set_Pure_Flag (Function_Now, False); + end if; + Set_Implicit_Definition (Function_Now, Iir_Predefined_Now_Function); + Sem.Compute_Subprogram_Hash (Function_Now); + Add_Decl (Function_Now); + end; + + -- VHDL93: + -- type file_open_kind is (read_mode, write_mode, append_mode); + if Flags.Vhdl_Std >= Vhdl_93c then + File_Open_Kind_Type_Definition := + Create_Std_Iir (Iir_Kind_Enumeration_Type_Definition); + Set_Base_Type (File_Open_Kind_Type_Definition, + File_Open_Kind_Type_Definition); + Set_Enumeration_Literal_List + (File_Open_Kind_Type_Definition, Create_Iir_List); + + File_Open_Kind_Read_Mode := Create_Std_Literal + (Name_Read_Mode, File_Open_Kind_Type_Definition); + File_Open_Kind_Write_Mode := Create_Std_Literal + (Name_Write_Mode, File_Open_Kind_Type_Definition); + File_Open_Kind_Append_Mode := Create_Std_Literal + (Name_Append_Mode, File_Open_Kind_Type_Definition); + Set_Type_Staticness (File_Open_Kind_Type_Definition, Locally); + Set_Signal_Type_Flag (File_Open_Kind_Type_Definition, True); + + -- type file_open_kind is + File_Open_Kind_Type := Create_Std_Iir (Iir_Kind_Type_Declaration); + Set_Std_Identifier (File_Open_Kind_Type, Name_File_Open_Kind); + Set_Type (File_Open_Kind_Type, File_Open_Kind_Type_Definition); + Add_Decl (File_Open_Kind_Type); + Set_Type_Declarator (File_Open_Kind_Type_Definition, + File_Open_Kind_Type); + Iirs_Utils.Create_Range_Constraint_For_Enumeration_Type + (File_Open_Kind_Type_Definition); + Add_Implicit_Operations (File_Open_Kind_Type); + else + File_Open_Kind_Type := Null_Iir; + File_Open_Kind_Type_Definition := Null_Iir; + File_Open_Kind_Read_Mode := Null_Iir; + File_Open_Kind_Write_Mode := Null_Iir; + File_Open_Kind_Append_Mode := Null_Iir; + end if; + + -- VHDL93: + -- type file_open_status is + -- (open_ok, status_error, name_error, mode_error); + if Flags.Vhdl_Std >= Vhdl_93c then + File_Open_Status_Type_Definition := + Create_Std_Iir (Iir_Kind_Enumeration_Type_Definition); + Set_Base_Type (File_Open_Status_Type_Definition, + File_Open_Status_Type_Definition); + Set_Enumeration_Literal_List + (File_Open_Status_Type_Definition, Create_Iir_List); + + File_Open_Status_Open_Ok := Create_Std_Literal + (Name_Open_Ok, File_Open_Status_Type_Definition); + File_Open_Status_Status_Error := Create_Std_Literal + (Name_Status_Error, File_Open_Status_Type_Definition); + File_Open_Status_Name_Error := Create_Std_Literal + (Name_Name_Error, File_Open_Status_Type_Definition); + File_Open_Status_Mode_Error := Create_Std_Literal + (Name_Mode_Error, File_Open_Status_Type_Definition); + Set_Type_Staticness (File_Open_Status_Type_Definition, Locally); + Set_Signal_Type_Flag (File_Open_Status_Type_Definition, True); + + -- type file_open_kind is + File_Open_Status_Type := Create_Std_Iir (Iir_Kind_Type_Declaration); + Set_Std_Identifier (File_Open_Status_Type, Name_File_Open_Status); + Set_Type (File_Open_Status_Type, File_Open_Status_Type_Definition); + Add_Decl (File_Open_Status_Type); + Set_Type_Declarator (File_Open_Status_Type_Definition, + File_Open_Status_Type); + Iirs_Utils.Create_Range_Constraint_For_Enumeration_Type + (File_Open_Status_Type_Definition); + Add_Implicit_Operations (File_Open_Status_Type); + else + File_Open_Status_Type := Null_Iir; + File_Open_Status_Type_Definition := Null_Iir; + File_Open_Status_Open_Ok := Null_Iir; + File_Open_Status_Status_Error := Null_Iir; + File_Open_Status_Name_Error := Null_Iir; + File_Open_Status_Mode_Error := Null_Iir; + end if; + + -- VHDL93: + -- attribute FOREIGN: string; + if Flags.Vhdl_Std >= Vhdl_93c then + Foreign_Attribute := Create_Std_Iir (Iir_Kind_Attribute_Declaration); + Set_Std_Identifier (Foreign_Attribute, Name_Foreign); + Set_Type (Foreign_Attribute, String_Type_Definition); + Add_Decl (Foreign_Attribute); + else + Foreign_Attribute := Null_Iir; + end if; + end Create_Std_Standard_Package; +end Std_Package; |