lib/trig.c

   1 /* trig.c - Trigonometric table definitions.  */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2008  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <grub/trig.h>
  21
  22 /* These tables were generated with `gentrigtables.py'.  */
  23
  24 short grub_trig_sintab[] =
  25 {
  26   0,402,804,1205,1606,2006,2404,2801,3196,3590,
  27   3981,4370,4756,5139,5520,5897,6270,6639,7005,7366,
  28   7723,8076,8423,8765,9102,9434,9760,10080,10394,10702,
  29   11003,11297,11585,11866,12140,12406,12665,12916,13160,13395,
  30   13623,13842,14053,14256,14449,14635,14811,14978,15137,15286,
  31   15426,15557,15679,15791,15893,15986,16069,16143,16207,16261,
  32   16305,16340,16364,16379,16384,16379,16364,16340,16305,16261,
  33   16207,16143,16069,15986,15893,15791,15679,15557,15426,15286,
  34   15137,14978,14811,14635,14449,14256,14053,13842,13623,13395,
  35   13160,12916,12665,12406,12140,11866,11585,11297,11003,10702,
  36   10394,10080,9760,9434,9102,8765,8423,8076,7723,7366,
  37   7005,6639,6270,5897,5520,5139,4756,4370,3981,3590,
  38   3196,2801,2404,2006,1606,1205,804,402,0,-402,
  39   -804,-1205,-1606,-2006,-2404,-2801,-3196,-3590,-3981,-4370,
  40   -4756,-5139,-5520,-5897,-6270,-6639,-7005,-7366,-7723,-8076,
  41   -8423,-8765,-9102,-9434,-9760,-10080,-10394,-10702,-11003,-11297,
  42   -11585,-11866,-12140,-12406,-12665,-12916,-13160,-13395,-13623,-13842,
  43   -14053,-14256,-14449,-14635,-14811,-14978,-15137,-15286,-15426,-15557,
  44   -15679,-15791,-15893,-15986,-16069,-16143,-16207,-16261,-16305,-16340,
  45   -16364,-16379,-16384,-16379,-16364,-16340,-16305,-16261,-16207,-16143,
  46   -16069,-15986,-15893,-15791,-15679,-15557,-15426,-15286,-15137,-14978,
  47   -14811,-14635,-14449,-14256,-14053,-13842,-13623,-13395,-13160,-12916,
  48   -12665,-12406,-12140,-11866,-11585,-11297,-11003,-10702,-10394,-10080,
  49   -9760,-9434,-9102,-8765,-8423,-8076,-7723,-7366,-7005,-6639,
  50   -6270,-5897,-5520,-5139,-4756,-4370,-3981,-3590,-3196,-2801,
  51   -2404,-2006,-1606,-1205,-804,-402
  52 };
  53
  54 short grub_trig_costab[] =
  55 {
  56   16384,16379,16364,16340,16305,16261,16207,16143,16069,15986,
  57   15893,15791,15679,15557,15426,15286,15137,14978,14811,14635,
  58   14449,14256,14053,13842,13623,13395,13160,12916,12665,12406,
  59   12140,11866,11585,11297,11003,10702,10394,10080,9760,9434,
  60   9102,8765,8423,8076,7723,7366,7005,6639,6270,5897,
  61   5520,5139,4756,4370,3981,3590,3196,2801,2404,2006,
  62   1606,1205,804,402,0,-402,-804,-1205,-1606,-2006,
  63   -2404,-2801,-3196,-3590,-3981,-4370,-4756,-5139,-5520,-5897,
  64   -6270,-6639,-7005,-7366,-7723,-8076,-8423,-8765,-9102,-9434,
  65   -9760,-10080,-10394,-10702,-11003,-11297,-11585,-11866,-12140,-12406,
  66   -12665,-12916,-13160,-13395,-13623,-13842,-14053,-14256,-14449,-14635,
  67   -14811,-14978,-15137,-15286,-15426,-15557,-15679,-15791,-15893,-15986,
  68   -16069,-16143,-16207,-16261,-16305,-16340,-16364,-16379,-16384,-16379,
  69   -16364,-16340,-16305,-16261,-16207,-16143,-16069,-15986,-15893,-15791,
  70   -15679,-15557,-15426,-15286,-15137,-14978,-14811,-14635,-14449,-14256,
  71   -14053,-13842,-13623,-13395,-13160,-12916,-12665,-12406,-12140,-11866,
  72   -11585,-11297,-11003,-10702,-10394,-10080,-9760,-9434,-9102,-8765,
  73   -8423,-8076,-7723,-7366,-7005,-6639,-6270,-5897,-5520,-5139,
  74   -4756,-4370,-3981,-3590,-3196,-2801,-2404,-2006,-1606,-1205,
  75   -804,-402,0,402,804,1205,1606,2006,2404,2801,
  76   3196,3590,3981,4370,4756,5139,5520,5897,6270,6639,
  77   7005,7366,7723,8076,8423,8765,9102,9434,9760,10080,
  78   10394,10702,11003,11297,11585,11866,12140,12406,12665,12916,
  79   13160,13395,13623,13842,14053,14256,14449,14635,14811,14978,
  80   15137,15286,15426,15557,15679,15791,15893,15986,16069,16143,
  81   16207,16261,16305,16340,16364,16379
  82 };
  83