File : s-macres-p55.adb


   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --                   S Y S T E M .  M A C H I N E _ R E S E T               --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --            Copyright (C) 2011-2016, Free Software Foundation, Inc.       --
  10 --                                                                          --
  11 -- GNAT 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 --                                                                          --
  19 --                                                                          --
  20 --                                                                          --
  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 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31 
  32 with Interfaces;
  33 
  34 package body System.Machine_Reset is
  35    procedure Os_Exit (Status : Integer);
  36    pragma No_Return (Os_Exit);
  37    pragma Export (Ada, Os_Exit, "_exit");
  38    --  Shutdown or restart the board
  39 
  40    procedure Os_Abort;
  41    pragma No_Return (Os_Abort);
  42    pragma Export (Ada, Os_Abort, "abort");
  43    --  Likewise
  44 
  45    --------------
  46    -- Os_Abort --
  47    --------------
  48 
  49    procedure Os_Abort is
  50    begin
  51       Os_Exit (1);
  52    end Os_Abort;
  53 
  54    -------------
  55    -- Os_Exit --
  56    -------------
  57 
  58    procedure Os_Exit (Status : Integer) is
  59       pragma Unreferenced (Status);
  60       --  The parameter is just for ISO-C compatibility
  61 
  62       SIU_SRCR : Interfaces.Unsigned_32;
  63       for SIU_SRCR'Address use 16#C3F9_0010#;
  64       pragma Import (Ada, SIU_SRCR);
  65       pragma Volatile (SIU_SRCR);
  66 
  67    begin
  68       SIU_SRCR := 16#8000_0000#;
  69       loop
  70          null;
  71       end loop;
  72    end Os_Exit;
  73 
  74    ----------
  75    -- Stop --
  76    ----------
  77 
  78    procedure Stop is
  79    begin
  80       Os_Exit (0);
  81    end Stop;
  82 end System.Machine_Reset;