git.distorted.org.uk Git - u/mdw/catacomb/blob - calc/gfx-test.cal

   1 /* -*-apcalc-*-
   2  *
   3  * $Id: gfx-test.cal,v 1.2 2004/04/08 01:36:15 mdw Exp $
   4  *
   5  * Generate test cases for %$\gf{2}[x]$% arithmetic
   6  *
   7  * (c) 2000 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of Catacomb.
  13  *
  14  * Catacomb is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU Library General Public License as
  16  * published by the Free Software Foundation; either version 2 of the
  17  * License, or (at your option) any later version.
  18  *
  19  * Catacomb is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU Library General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Library General Public
  25  * License along with Catacomb; if not, write to the Free
  26  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  27  * MA 02111-1307, USA.
  28  */
  29
  30 /*----- External units ----------------------------------------------------*/
  31
  32 read gfx;
  33
  34 /*----- Global variables --------------------------------------------------*/
  35
  36 global op = "+", n = 40, bits = 128;
  37
  38 /*----- Main code ---------------------------------------------------------*/
  39
  40 dummy = config("lib_debug", -1);
  41
  42 define gfx_test() {
  43   local i, j, x;
  44   local a, b, l;
  45
  46   for (i = 0; i < n; i++) {
  47
  48     /* --- Select the inputs and produce the outputs --- */
  49
  50     switch (op) {
  51       case '+':
  52       case '-':
  53         a = gf(random(1 << bits));
  54         b = gf(random(1 << bits));
  55         l = list(a, b, a + b);
  56         break;
  57       case '*':
  58         a = gf(random(1 << bits));
  59         b = gf(random(1 << bits));
  60         l = list(a, b, a * b);
  61         break;
  62       case '2':
  63         a = gf(random(1 << bits));
  64         l = list(a, a * a);
  65         break;
  66       case '/':
  67         a = gf(random(1 << (bits + random(bits))));
  68         b = gf(random(1 << bits));
  69         l = list(a, b, a / b, a % b);
  70         break;
  71       default:
  72         exit "unknown operator";
  73         break;
  74     }
  75
  76     /* --- Output the test vector --- *
  77      *
  78      * Be careful to ensure that it has an even number of hex digits in each
  79      * number.
  80      */
  81
  82     for (j = 0; j < size(l); j++) {
  83       x = strprintf("%x", l[[j]].x);
  84       if (strlen(x) > 1)
  85         x = substr(x, 3, strlen(x) - 2);
  86       if (strlen(x) % 2)
  87         x = strcat("0", x);
  88       x = strcat("  ", x);
  89       if (j)
  90         x = strcat("  ", x);
  91       if (j == size(l) - 1)
  92         x = strcat(x, ";");
  93       printf("%s\n", x);
  94     }
  95   }
  96 }
  97
  98 /*----- That's all, folks -------------------------------------------------*/