old-autovect-branch/gcc/ada/get_targ.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             G E T _ T A R G                              --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2003 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 2,  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.  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 GNAT;  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 -- GNAT was originally developed  by the GNAT team at  New York University. --
  23 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  24 --                                                                          --
  25 ------------------------------------------------------------------------------
  26
  27 package body Get_Targ is
  28
  29    ----------------------
  30    -- Digits_From_Size --
  31    ----------------------
  32
  33    function Digits_From_Size (Size : Pos) return Pos is
  34    begin
  35       if    Size =  32 then return  6;
  36       elsif Size =  48 then return  9;
  37       elsif Size =  64 then return 15;
  38       elsif Size =  96 then return 18;
  39       elsif Size = 128 then return 18;
  40       else
  41          raise Program_Error;
  42       end if;
  43    end Digits_From_Size;
  44
  45    ---------------------
  46    -- Width_From_Size --
  47    ---------------------
  48
  49    function Width_From_Size  (Size : Pos) return Pos is
  50    begin
  51       if    Size =  8 then return  4;
  52       elsif Size = 16 then return  6;
  53       elsif Size = 32 then return 11;
  54       elsif Size = 64 then return 21;
  55       else
  56          raise Program_Error;
  57       end if;
  58    end Width_From_Size;
  59
  60    -----------------------------
  61    -- Get_Max_Unaligned_Field --
  62    -----------------------------
  63
  64    function Get_Max_Unaligned_Field return Pos is
  65    begin
  66       return 64;  -- Can be different on some targets (e.g., AAMP)
  67    end Get_Max_Unaligned_Field;
  68
  69 end Get_Targ;