1 /* $NetBSD: genpar.c,v 1.8 2002/01/26 13:40:54 aymeric Exp $ */ 2 3 /* 4 * Copyright (c) 1993 Markus Wild 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Markus Wild. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <stdio.h> 34 35 int main(void); 36 37 #define BSET(i,b) ((i & (1 << b)) ? 1 : 0) 38 39 int 40 main(void) 41 { 42 int i; 43 unsigned char par; 44 45 printf("u_char even_parity[] = {\n\t"); 46 for (i = 0; i < 0x80; i++) { 47 par = BSET(i,0) + BSET(i,1) + BSET(i,2) + BSET(i,3) + 48 BSET(i,4) + BSET(i,5) + BSET(i,6) + BSET(i,7); 49 printf("%2d, ", par & 1); 50 if ((i & 15) == 15) 51 printf("\n\t"); 52 } 53 printf("};\n"); 54 exit(0); 55 /* NOTREACHED */ 56 } 57