gcc/ada/5kvxwork.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                 GNU ADA 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 --                                                                          --
  10 --            Copyright (C) 1998-2001 Free Software Foundation, Inc.        --
  11 --                                                                          --
  12 -- GNARL is free software; you can  redistribute it  and/or modify it under --
  13 -- terms of the  GNU General Public License as published  by the Free Soft- --
  14 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  15 -- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
  16 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  17 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  18 -- for  more details.  You should have  received  a copy of the GNU General --
  19 -- Public License  distributed with GNARL; see file COPYING.  If not, write --
  20 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  21 -- MA 02111-1307, USA.                                                      --
  22 --                                                                          --
  23 -- As a special exception,  if other files  instantiate  generics from this --
  24 -- unit, or you link  this unit with other files  to produce an executable, --
  25 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  26 -- covered  by the  GNU  General  Public  License.  This exception does not --
  27 -- however invalidate  any other reasons why  the executable file  might be --
  28 -- covered by the  GNU Public License.                                      --
  29 --                                                                          --
  30 -- GNARL was developed by the GNARL team at Florida State University.       --
  31 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  32 --                                                                          --
  33 ------------------------------------------------------------------------------
  34
  35 --  This is the M68K VxWorks version of this package.
  36
  37 with Interfaces.C;
  38
  39 package System.VxWorks is
  40    pragma Preelaborate (System.VxWorks);
  41
  42    package IC renames Interfaces.C;
  43
  44    --  Floating point context record. 68K version
  45
  46    FP_NUM_DREGS        : constant := 8;
  47    FP_STATE_FRAME_SIZE : constant := 216;
  48
  49    type DOUBLEX is array (1 .. 12) of Interfaces.Unsigned_8;
  50    pragma Pack (DOUBLEX);
  51    for DOUBLEX'Size use 12 * 8;
  52
  53    type DOUBLEX_Array is array (1 .. FP_NUM_DREGS) of DOUBLEX;
  54    pragma Pack (DOUBLEX_Array);
  55    for DOUBLEX_Array'Size use FP_NUM_DREGS * 12 * 8;
  56
  57    type FPREG_SET is record
  58       fpcr  : IC.int;
  59       fpsr  : IC.int;
  60       fpiar : IC.int;
  61       fpx   : DOUBLEX_Array;
  62    end record;
  63
  64    type Fp_State_Frame_Array is array (1 .. FP_STATE_FRAME_SIZE) of IC.char;
  65    pragma Pack (Fp_State_Frame_Array);
  66    for Fp_State_Frame_Array'Size use 8 * FP_STATE_FRAME_SIZE;
  67
  68    type FP_CONTEXT is record
  69       fpRegSet   : FPREG_SET;
  70       stateFrame : Fp_State_Frame_Array;
  71    end record;
  72    pragma Convention (C, FP_CONTEXT);
  73
  74    Num_HW_Interrupts : constant := 256;
  75    --  Number of entries in the hardware interrupt vector table
  76
  77 end System.VxWorks;