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 M68K VxWorks version of this package
33
34with Interfaces.C;
35
36package System.VxWorks is
37   pragma Preelaborate;
38
39   package IC renames Interfaces.C;
40
41   --  Floating point context record. 68K version
42
43   FP_NUM_DREGS        : constant := 8;
44   FP_STATE_FRAME_SIZE : constant := 216;
45
46   type DOUBLEX is array (1 .. 12) of Interfaces.Unsigned_8;
47   pragma Pack (DOUBLEX);
48   for DOUBLEX'Size use 12 * 8;
49
50   type DOUBLEX_Array is array (1 .. FP_NUM_DREGS) of DOUBLEX;
51   pragma Pack (DOUBLEX_Array);
52   for DOUBLEX_Array'Size use FP_NUM_DREGS * 12 * 8;
53
54   type FPREG_SET is record
55      fpcr  : IC.int;
56      fpsr  : IC.int;
57      fpiar : IC.int;
58      fpx   : DOUBLEX_Array;
59   end record;
60
61   type Fp_State_Frame_Array is array (1 .. FP_STATE_FRAME_SIZE) of IC.char;
62   pragma Pack (Fp_State_Frame_Array);
63   for Fp_State_Frame_Array'Size use 8 * FP_STATE_FRAME_SIZE;
64
65   type FP_CONTEXT is record
66      fpRegSet   : FPREG_SET;
67      stateFrame : Fp_State_Frame_Array;
68   end record;
69   pragma Convention (C, FP_CONTEXT);
70
71   Num_HW_Interrupts : constant := 256;
72   --  Number of entries in the hardware interrupt vector table
73
74end System.VxWorks;
75