1------------------------------------------------------------------------------
2--                                                                          --
3--                  GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                --
4--                                                                          --
5--                        S Y S T E M . V X W O R K S                       --
6--                                                                          --
7--                                   S p e c                                --
8--                                                                          --
9--            Copyright (C) 1998-2009 Free Software Foundation, Inc.        --
10--                                                                          --
11-- GNARL is free software;  you can  redistribute it and/or modify it under --
12-- terms of the  GNU General Public License as published  by the Free Soft- --
13-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
14-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
15-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
16-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
17--                                                                          --
18-- As a special exception under Section 7 of GPL version 3, you are granted --
19-- additional permissions described in the GCC Runtime Library Exception,   --
20-- version 3.1, as published by the Free Software Foundation.               --
21--                                                                          --
22-- You should have received a copy of the GNU General Public License and    --
23-- a copy of the GCC Runtime Library Exception along with this program;     --
24-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
25-- <http://www.gnu.org/licenses/>.                                          --
26--                                                                          --
27-- GNARL was developed by the GNARL team at Florida State University.       --
28-- Extensive contributions were provided by Ada Core Technologies, Inc.     --
29--                                                                          --
30------------------------------------------------------------------------------
31
32--  This is the x86 VxWorks version of this package
33
34package System.VxWorks is
35   pragma Preelaborate;
36
37   --  Floating point context record. x86 version
38
39   --  There are two kinds of FP_CONTEXT for this architecture, corresponding
40   --  to newer and older processors. The type is defined in fppI86lib.h as a
41   --  union. The form used depends on the versions of the save and restore
42   --  routines that are selected by the user (these versions are provided in
43   --  vxwork.ads). Since we do not examine the contents of these objects, it
44   --  is sufficient to declare the type as of the required size: 512 bytes.
45
46   type FP_CONTEXT is array (1 .. 128) of Integer;
47   for FP_CONTEXT'Alignment use 4;
48   for FP_CONTEXT'Size use 512 * Storage_Unit;
49   pragma Convention (C, FP_CONTEXT);
50
51   Num_HW_Interrupts : constant := 256;
52   --  Number of entries in hardware interrupt vector table
53
54end System.VxWorks;
55