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

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