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) 1998-2005 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 2,  or (at your option) any later ver- --
  14 -- sion. GNARL 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.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNARL; see file COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
  26 -- however invalidate  any other reasons why  the executable file  might be --
  27 -- covered by the  GNU Public License.                                      --
  28 --                                                                          --
  29 -- GNARL was developed by the GNARL team at Florida State University.       --
  30 -- Extensive contributions were provided by Ada Core Technologies, Inc.     --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 --  This is the M68K VxWorks version of this package.
  35
  36 with Interfaces.C;
  37
  38 package System.VxWorks is
  39    pragma Preelaborate;
  40
  41    package IC renames Interfaces.C;
  42
  43    --  Floating point context record. 68K version
  44
  45    FP_NUM_DREGS        : constant := 8;
  46    FP_STATE_FRAME_SIZE : constant := 216;
  47
  48    type DOUBLEX is array (1 .. 12) of Interfaces.Unsigned_8;
  49    pragma Pack (DOUBLEX);
  50    for DOUBLEX'Size use 12 * 8;
  51
  52    type DOUBLEX_Array is array (1 .. FP_NUM_DREGS) of DOUBLEX;
  53    pragma Pack (DOUBLEX_Array);
  54    for DOUBLEX_Array'Size use FP_NUM_DREGS * 12 * 8;
  55
  56    type FPREG_SET is record
  57       fpcr  : IC.int;
  58       fpsr  : IC.int;
  59       fpiar : IC.int;
  60       fpx   : DOUBLEX_Array;
  61    end record;
  62
  63    type Fp_State_Frame_Array is array (1 .. FP_STATE_FRAME_SIZE) of IC.char;
  64    pragma Pack (Fp_State_Frame_Array);
  65    for Fp_State_Frame_Array'Size use 8 * FP_STATE_FRAME_SIZE;
  66
  67    type FP_CONTEXT is record
  68       fpRegSet   : FPREG_SET;
  69       stateFrame : Fp_State_Frame_Array;
  70    end record;
  71    pragma Convention (C, FP_CONTEXT);
  72
  73    Num_HW_Interrupts : constant := 256;
  74    --  Number of entries in the hardware interrupt vector table
  75
  76 end System.VxWorks;