X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/7c0acba656af3823577d1341f39c0bbe86632681..a2a74efe4b1276b1efec12f25fd65f0df060f38a:/calc/gfx-test.cal

diff --git a/calc/gfx-test.cal b/calc/gfx-test.cal
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+/* -*-apcalc-*-
+ *
+ * $Id: gfx-test.cal,v 1.1 2000/10/08 16:01:37 mdw Exp $
+ *
+ * Generate test cases for %$\gf{2}[x]$% arithmetic
+ *
+ * (c) 2000 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------* 
+ *
+ * This file is part of Catacomb.
+ *
+ * Catacomb is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ * 
+ * Catacomb 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 Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with Catacomb; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*----- Revision history --------------------------------------------------* 
+ *
+ * $Log: gfx-test.cal,v $
+ * Revision 1.1  2000/10/08 16:01:37  mdw
+ * Prototypes of various bits of code.
+ *
+ */
+
+/*----- External units ----------------------------------------------------*/
+
+read gfx;
+
+/*----- Global variables --------------------------------------------------*/
+
+global op = "+", n = 40, bits = 128;
+
+/*----- Main code ---------------------------------------------------------*/
+
+dummy = config("lib_debug", -1);
+
+define gfx_test() {
+  local i, j, x;
+  local a, b, l;
+
+  for (i = 0; i < n; i++) {
+
+    /* --- Select the inputs and produce the outputs --- */
+
+    switch (op) {
+      case '+':
+      case '-':
+	a = gf(random(1 << bits));
+	b = gf(random(1 << bits));
+	l = list(a, b, a + b);
+	break;
+      case '*':
+	a = gf(random(1 << bits));
+	b = gf(random(1 << bits));
+	l = list(a, b, a * b);
+	break;
+      case '2':
+	a = gf(random(1 << bits));
+	l = list(a, a * a);
+	break;
+      case '/':
+	a = gf(random(1 << (bits + random(bits))));
+	b = gf(random(1 << bits));
+	l = list(a, b, a / b, a % b);
+	break;
+      default:
+	exit "unknown operator";
+	break;
+    }
+
+    /* --- Output the test vector --- *
+     *
+     * Be careful to ensure that it has an even number of hex digits in each
+     * number.
+     */
+
+    for (j = 0; j < size(l); j++) {
+      x = strprintf("%x", l[[j]].x);
+      if (strlen(x) > 1)
+	x = substr(x, 3, strlen(x) - 2);
+      if (strlen(x) % 2)
+	x = strcat("0", x);
+      x = strcat("  ", x);
+      if (j)
+	x = strcat("  ", x);
+      if (j == size(l) - 1)
+	x = strcat(x, ";");
+      printf("%s\n", x);
+    }
+  }
+}
+
+/*----- That's all, folks -------------------------------------------------*/