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/*****************************************************************************/ /* * gentbl.c -- Linux soundcard HF FSK driver, * Table generator. * * Copyright (C) 1997 Thomas Sailer (sailer@ife.ee.ethz.ch) * Swiss Federal Institute of Technology (ETH), Electronics Lab * * This program 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. * * This program 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 this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * */ /*****************************************************************************/ /* This is compiled with HOSTCC - do not include any <linux/foo.h> headers. */ #include <math.h> #include <stdio.h> /* --------------------------------------------------------------------- */ #define SINTABBITS 9 #define SINTABSIZE (1<<SINTABBITS) /* --------------------------------------------------------------------- */ static void gensintbl(void) { int i; printf("#define SINTABBITS %d\n#define SINTABSIZE (1<<SINTABBITS)\n" "\nstatic short isintab[SINTABSIZE+SINTABSIZE/4] = {\n\t", SINTABBITS); for (i = 0; i < (SINTABSIZE+SINTABSIZE/4); i++) { printf("%6d", (int)(32767.0 * sin(2.0 * M_PI / SINTABSIZE * i))); if (i < (SINTABSIZE+SINTABSIZE/4)-1) { if ((i & 7) == 7) printf(",\n\t"); else printf(","); } } printf("\n};\n\n"); } /* --------------------------------------------------------------------- */ int main(int argc, char *argv[]) { printf("/*\n * This file is automatically generated by %s, DO NOT EDIT!\n*/\n\n", argv[0]); gensintbl(); exit(0); } /* --------------------------------------------------------------------- */ |