11541Srgrimes------------------------------------------------------------------------------
21541Srgrimes--                                                                          --
31541Srgrimes--                        GNAT RUN-TIME COMPONENTS                          --
41541Srgrimes--                                                                          --
51541Srgrimes--                               S Y S T E M                                --
61541Srgrimes--                                                                          --
71541Srgrimes--                                 S p e c                                  --
81541Srgrimes--                        (GNU/Linux-HPPA Version)                          --
91541Srgrimes--                                                                          --
101541Srgrimes--          Copyright (C) 1992-2014, Free Software Foundation, Inc.         --
111541Srgrimes--                                                                          --
121541Srgrimes-- This specification is derived from the Ada Reference Manual for use with --
131541Srgrimes-- GNAT. The copyright notice above, and the license provisions that follow --
141541Srgrimes-- apply solely to the  contents of the part following the private keyword. --
151541Srgrimes--                                                                          --
161541Srgrimes-- GNAT is free software;  you can  redistribute it  and/or modify it under --
171541Srgrimes-- terms of the  GNU General Public License as published  by the Free Soft- --
181541Srgrimes-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
191541Srgrimes-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
201541Srgrimes-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
211541Srgrimes-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
221541Srgrimes--                                                                          --
231541Srgrimes-- As a special exception under Section 7 of GPL version 3, you are granted --
241541Srgrimes-- additional permissions described in the GCC Runtime Library Exception,   --
251541Srgrimes-- version 3.1, as published by the Free Software Foundation.               --
261541Srgrimes--                                                                          --
271541Srgrimes-- You should have received a copy of the GNU General Public License and    --
281541Srgrimes-- a copy of the GCC Runtime Library Exception along with this program;     --
291541Srgrimes-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
301541Srgrimes-- <http://www.gnu.org/licenses/>.                                          --
311541Srgrimes--                                                                          --
321541Srgrimes-- GNAT was originally developed  by the GNAT team at  New York University. --
331541Srgrimes-- Extensive contributions were provided by Ada Core Technologies Inc.      --
3444078Sdfr--                                                                          --
351541Srgrimes------------------------------------------------------------------------------
361541Srgrimes
371541Srgrimespackage System is
381541Srgrimes   pragma Pure;
391541Srgrimes   --  Note that we take advantage of the implementation permission to make
401541Srgrimes   --  this unit Pure instead of Preelaborable; see RM 13.7.1(15). In Ada
411541Srgrimes   --  2005, this is Pure in any case (AI-362).
421541Srgrimes
4332350Seivind   pragma No_Elaboration_Code_All;
4441793Sluigi   --  Allow the use of that restriction in units that WITH this unit
4532350Seivind
461541Srgrimes   type Name is (SYSTEM_NAME_GNAT);
4712693Sphk   System_Name : constant Name := SYSTEM_NAME_GNAT;
4844078Sdfr
4912693Sphk   --  System-Dependent Named Numbers
501541Srgrimes
5112693Sphk   Min_Int               : constant := Long_Long_Integer'First;
521541Srgrimes   Max_Int               : constant := Long_Long_Integer'Last;
5318892Sbde
541541Srgrimes   Max_Binary_Modulus    : constant := 2 ** Long_Long_Integer'Size;
551541Srgrimes   Max_Nonbinary_Modulus : constant := 2 ** Integer'Size - 1;
561541Srgrimes
571541Srgrimes   Max_Base_Digits       : constant := Long_Long_Float'Digits;
581541Srgrimes   Max_Digits            : constant := Long_Long_Float'Digits;
598426Swollman
601541Srgrimes   Max_Mantissa          : constant := 63;
611541Srgrimes   Fine_Delta            : constant := 2.0 ** (-Max_Mantissa);
621541Srgrimes
631541Srgrimes   Tick                  : constant := 0.000_001;
641541Srgrimes
651541Srgrimes   --  Storage-related Declarations
661541Srgrimes
671541Srgrimes   type Address is private;
6844078Sdfr   pragma Preelaborable_Initialization (Address);
6912942Swollman   Null_Address : constant Address;
701541Srgrimes
7112693Sphk   Storage_Unit : constant := 8;
7212942Swollman   Word_Size    : constant := 32;
7312942Swollman   Memory_Size  : constant := 2 ** 32;
7412942Swollman
751541Srgrimes   --  Address comparison
7612942Swollman
7712942Swollman   function "<"  (Left, Right : Address) return Boolean;
7812942Swollman   function "<=" (Left, Right : Address) return Boolean;
7912942Swollman   function ">"  (Left, Right : Address) return Boolean;
8012942Swollman   function ">=" (Left, Right : Address) return Boolean;
8112942Swollman   function "="  (Left, Right : Address) return Boolean;
8212693Sphk
831541Srgrimes   pragma Import (Intrinsic, "<");
841541Srgrimes   pragma Import (Intrinsic, "<=");
8511225Swollman   pragma Import (Intrinsic, ">");
8611225Swollman   pragma Import (Intrinsic, ">=");
8711225Swollman   pragma Import (Intrinsic, "=");
8811225Swollman
8911225Swollman   --  Other System-Dependent Declarations
9011225Swollman
9111225Swollman   type Bit_Order is (High_Order_First, Low_Order_First);
9212693Sphk   Default_Bit_Order : constant Bit_Order := High_Order_First;
9311225Swollman   pragma Warnings (Off, Default_Bit_Order); -- kill constant condition warning
9411225Swollman
951541Srgrimes   --  Priority-related Declarations (RM D.1)
9612820Sphk
971541Srgrimes   Max_Priority           : constant Positive := 30;
9812693Sphk   Max_Interrupt_Priority : constant Positive := 31;
9912942Swollman
10012942Swollman   subtype Any_Priority       is Integer      range  0 .. 31;
1013282Swollman   subtype Priority           is Any_Priority range  0 .. 30;
10212942Swollman   subtype Interrupt_Priority is Any_Priority range 31 .. 31;
10312942Swollman
10412942Swollman   Default_Priority : constant Priority := 15;
10512942Swollman
10612942Swollmanprivate
10712942Swollman
10812693Sphk   type Address is mod Memory_Size;
10912877Sbde   Null_Address : constant Address := 0;
11036908Sjulian
11136908Sjulian   --------------------------------------
11212693Sphk   -- System Implementation Parameters --
11312693Sphk   --------------------------------------
11412693Sphk
11512693Sphk   --  These parameters provide information about the target that is used
11612693Sphk   --  by the compiler. They are in the private part of System, where they
11732350Seivind   --  can be accessed using the special circuitry in the Targparm unit
11812693Sphk   --  whose source should be consulted for more detailed descriptions
11932350Seivind   --  of the individual switch values.
12012693Sphk
1211541Srgrimes   Backend_Divide_Checks     : constant Boolean := False;
1221541Srgrimes   Backend_Overflow_Checks   : constant Boolean := True;
1231541Srgrimes   Command_Line_Args         : constant Boolean := True;
1241541Srgrimes   Configurable_Run_Time     : constant Boolean := False;
1251541Srgrimes   Denorm                    : constant Boolean := True;
1261541Srgrimes   Duration_32_Bits          : constant Boolean := False;
1271541Srgrimes   Exit_Status_Supported     : constant Boolean := True;
1281541Srgrimes   Fractional_Fixed_Ops      : constant Boolean := False;
1291541Srgrimes   Frontend_Layout           : constant Boolean := False;
13011225Swollman   Machine_Overflows         : constant Boolean := False;
13111225Swollman   Machine_Rounds            : constant Boolean := True;
1321541Srgrimes   Preallocated_Stacks       : constant Boolean := False;
1331541Srgrimes   Signed_Zeros              : constant Boolean := True;
13411225Swollman   Stack_Check_Default       : constant Boolean := False;
1351541Srgrimes   Stack_Check_Probes        : constant Boolean := True;
13611225Swollman   Stack_Check_Limits        : constant Boolean := False;
13734961Sphk   Support_Aggregates        : constant Boolean := True;
13811225Swollman   Support_Composite_Assign  : constant Boolean := True;
1391541Srgrimes   Support_Composite_Compare : constant Boolean := True;
1401541Srgrimes   Support_Long_Shifts       : constant Boolean := True;
1411541Srgrimes   Always_Compatible_Rep     : constant Boolean := True;
1421541Srgrimes   Suppress_Standard_Library : constant Boolean := False;
1431541Srgrimes   Use_Ada_Main_Program_Name : constant Boolean := False;
1441541Srgrimes   ZCX_By_Default            : constant Boolean := True;
1451541Srgrimes
1465196Swollmanend System;
1471541Srgrimes