gcc/ada/s-vxwork-m68k.ads

   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
  34 with Interfaces.C;
  35
  36 package 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
  74 end System.VxWorks;