/*  fixedpoint (c) 2006 Kris Beevers  This file is part of fixedpoint.  fixedpoint is free software; you can redistribute it and/or modify  it under the terms of the GNU General Public License as published by  the Free Software Foundation; either version 2 of the License, or  (at your option) any later version.  fixedpoint is distributed in the hope that it will be useful, but  WITHOUT ANY WARRANTY; without even the implied warranty of  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  General Public License for more details.  You should have received a copy of the GNU General Public License  along with fixedpoint; if not, write to the Free Software  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA  $Id: gen_tables.c,v 1.1.1.1 2006/10/18 22:30:17 beevek Exp $*/// this program generates sin/cos tables using the fixed point// definitions from fixedpoint.h.  you should make sure to re-generate// the tables if you change the size of the decimal part in any way;// put the tables in fixedpoint.c#include <stdio.h>#include <math.h>#include "fixedpoint.h"int main(){  uint32_t count;  fixed_t a;  printf("#define TRIG_TABLE_SIZE %d // put this at top of fixedpoint.c\n", fp_pi/(1<<fp_trig_shift));  printf("static fixed_t sin_table[] = {\n  ");  for(count = 1, a = 0; a < fp_pi+1; a += 1<<fp_trig_shift, ++count) {    double s = sin(fp2float(a));    fixed_t sfp = float2fp(s);    if(!(count % 16))      printf("%d,\n  ", sfp);    else      printf("%d, ", sfp);  }  printf("\n};\n\n");  printf("static fixed_t cos_table[] = {\n  ");  for(count = 1, a = 0; a < fp_pi+1; a += 1<<fp_trig_shift, ++count) {    double c = cos(fp2float(a));    fixed_t cfp = float2fp(c);    if(!(count % 16))      printf("%d,\n  ", cfp);    else      printf("%d, ", cfp);  }  printf("\n};\n\n");  printf("static fixed_t tan_table[] = {\n  ");  for(count = 1, a = 0; a < fp_pi+1; a += 1<<fp_trig_shift, ++count) {    double t = tan(fp2float(a));    fixed_t tfp = float2fp(t);    if(!(count % 16))      printf("%d,\n  ", tfp);    else      printf("%d, ", tfp);  }  printf("\n};\n\n");  return 0;}