1ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Copyright (C) 2007 IBM 2ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Author: Pete Eberlein eberlein@us.ibm.com 4ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is free software; you can redistribute it and/or 6ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modify it under the terms of the GNU General Public License as 7ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown published by the Free Software Foundation; either version 2 of the 8ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown License, or (at your option) any later version. 9ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 10ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is distributed in the hope that it will be useful, but 11ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WITHOUT ANY WARRANTY; without even the implied warranty of 12ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown General Public License for more details. 14ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 15ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown You should have received a copy of the GNU General Public License 16ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown along with this program; if not, write to the Free Software 17ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 18ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 02111-1307, USA. 19ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 20ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The GNU General Public License is contained in the file COPYING. 21ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 22ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 23ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 24ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <stdio.h> 25ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <stdlib.h> 26ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <strings.h> 27ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 28ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define CMPB(result,a,b) \ 29ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown asm ("cmpb %0, %1, %2\n" : "=r"(result) : "r"(a), "r"(b)) 30ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 31ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 32ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint main(int argc, char *argv[]) 33ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 34ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int i, j, k; 35ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned long mask; 36ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 1; i < 256; i++) { 37ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mask = 0; 38ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i & 1) 39ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mask += 0xff; 40ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i & 2) 41ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mask += 0xff00; 42ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i & 4) 43ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mask += 0xff0000; 44ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i & 8) 45ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mask += 0xff000000; 46ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i & 16) 47ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mask += 0xff00000000; 48ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i & 32) 49ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mask += 0xff0000000000; 50ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i & 64) 51ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mask += 0xff000000000000; 52ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i & 128) 53ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mask += 0xff00000000000000; 54ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 55ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = 0; j < 256; j++) 56ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (k = 0; k < 256; k++) 57ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (j != k) { 58ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 59ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned long a, b, result; 60ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown a = (mask & (j * 0x101010101010101)) + 61ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((~mask) & (k * 0x101010101010101)); 62ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown b = j * 0x101010101010101; 63ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown CMPB(result, a, b); 64ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (result != mask) { 65ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown printf("%8lx %8lx %8lx %8lx\n", mask, a, b, result); 66ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown exit(1); 67ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 68ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 69ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 70ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 71ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 72ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return 0; 73ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 74