--- /dev/null
+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME COMPONENTS --
+-- --
+-- S Y S T E M --
+-- --
+-- S p e c --
+-- (VxWorks Version Xscale) --
+-- --
+-- Copyright (C) 1992-2003 Free Software Foundation, Inc. --
+-- --
+-- This specification is derived from the Ada Reference Manual for use with --
+-- GNAT. The copyright notice above, and the license provisions that follow --
+-- apply solely to the contents of the part following the private keyword. --
+-- --
+-- GNAT is free software; you can redistribute it and/or modify it under --
+-- terms of the GNU General Public License as published by the Free Soft- --
+-- ware Foundation; either version 2, or (at your option) any later ver- --
+-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT 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 distributed with GNAT; see 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. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+package System is
+pragma Pure (System);
+-- Note that we take advantage of the implementation permission to
+-- make this unit Pure instead of Preelaborable, see RM 13.7(36)
+
+ type Name is (SYSTEM_NAME_GNAT);
+ System_Name : constant Name := SYSTEM_NAME_GNAT;
+
+ -- System-Dependent Named Numbers
+
+ Min_Int : constant := Long_Long_Integer'First;
+ Max_Int : constant := Long_Long_Integer'Last;
+
+ Max_Binary_Modulus : constant := 2 ** Long_Long_Integer'Size;
+ Max_Nonbinary_Modulus : constant := Integer'Last;
+
+ Max_Base_Digits : constant := Long_Long_Float'Digits;
+ Max_Digits : constant := Long_Long_Float'Digits;
+
+ Max_Mantissa : constant := 63;
+ Fine_Delta : constant := 2.0 ** (-Max_Mantissa);
+
+ Tick : constant := 1.0 / 60.0;
+
+ -- Storage-related Declarations
+
+ type Address is private;
+ Null_Address : constant Address;
+
+ Storage_Unit : constant := 8;
+ Word_Size : constant := 32;
+ Memory_Size : constant := 2 ** 32;
+
+ -- Address comparison
+
+ function "<" (Left, Right : Address) return Boolean;
+ function "<=" (Left, Right : Address) return Boolean;
+ function ">" (Left, Right : Address) return Boolean;
+ function ">=" (Left, Right : Address) return Boolean;
+ function "=" (Left, Right : Address) return Boolean;
+
+ pragma Import (Intrinsic, "<");
+ pragma Import (Intrinsic, "<=");
+ pragma Import (Intrinsic, ">");
+ pragma Import (Intrinsic, ">=");
+ pragma Import (Intrinsic, "=");
+
+ -- Other System-Dependent Declarations
+
+ type Bit_Order is (High_Order_First, Low_Order_First);
+ Default_Bit_Order : constant Bit_Order := Low_Order_First;
+
+ -- Priority-related Declarations (RM D.1)
+
+ -- 256 is reserved for the VxWorks kernel
+ -- 248 - 255 correspond to hardware interrupt levels 0 .. 7
+ -- 247 is a catchall default "interrupt" priority for signals,
+ -- allowing higher priority than normal tasks, but lower than
+ -- hardware priority levels. Protected Object ceilings can
+ -- override these values.
+ -- 246 is used by the Interrupt_Manager task
+
+ Max_Priority : constant Positive := 245;
+ Max_Interrupt_Priority : constant Positive := 255;
+
+ subtype Any_Priority is Integer range 0 .. 255;
+ subtype Priority is Any_Priority range 0 .. 245;
+ subtype Interrupt_Priority is Any_Priority range 246 .. 255;
+
+ Default_Priority : constant Priority := 122;
+
+private
+
+ type Address is mod Memory_Size;
+ Null_Address : constant Address := 0;
+
+ --------------------------------------
+ -- System Implementation Parameters --
+ --------------------------------------
+
+ -- These parameters provide information about the target that is used
+ -- by the compiler. They are in the private part of System, where they
+ -- can be accessed using the special circuitry in the Targparm unit
+ -- whose source should be consulted for more detailed descriptions
+ -- of the individual switch values.
+
+ AAMP : constant Boolean := False;
+ Backend_Divide_Checks : constant Boolean := False;
+ Backend_Overflow_Checks : constant Boolean := False;
+ Command_Line_Args : constant Boolean := False;
+ Configurable_Run_Time : constant Boolean := False;
+ Denorm : constant Boolean := True;
+ Duration_32_Bits : constant Boolean := False;
+ Exit_Status_Supported : constant Boolean := True;
+ Fractional_Fixed_Ops : constant Boolean := False;
+ Frontend_Layout : constant Boolean := False;
+ Functions_Return_By_DSP : constant Boolean := False;
+ Machine_Overflows : constant Boolean := False;
+ Machine_Rounds : constant Boolean := True;
+ OpenVMS : constant Boolean := False;
+ Signed_Zeros : constant Boolean := True;
+ Stack_Check_Default : constant Boolean := False;
+ Stack_Check_Probes : constant Boolean := False;
+ Support_64_Bit_Divides : constant Boolean := True;
+ Support_Aggregates : constant Boolean := True;
+ Support_Composite_Assign : constant Boolean := True;
+ Support_Composite_Compare : constant Boolean := True;
+ Support_Long_Shifts : constant Boolean := True;
+ Suppress_Standard_Library : constant Boolean := False;
+ Use_Ada_Main_Program_Name : constant Boolean := True;
+ ZCX_By_Default : constant Boolean := False;
+ GCC_ZCX_Support : constant Boolean := False;
+ Front_End_ZCX_Support : constant Boolean := False;
+
+ -- Obsolete entries, to be removed eventually (bootstrap issues!)
+
+ High_Integrity_Mode : constant Boolean := False;
+ Long_Shifts_Inlined : constant Boolean := False;
+
+end System;
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