1 files changed, 259 insertions, 0 deletions
diff --git a/sim/testsuite/common/bits-gen.c b/sim/testsuite/common/bits-gen.c
new file mode 100644
index 0000000..5feb5a0
--- /dev/null
+++ b/sim/testsuite/common/bits-gen.c
@@ -0,0 +1,259 @@
+/* Miscellaneous simulator utilities.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   Contributed by Cygnus Support.
+
+This file is part of GDB, the GNU debugger.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+
+#include <stdio.h>
+
+
+void
+gen_struct (void)
+{
+  printf ("\n");
+  printf ("typedef struct _test_tuples {\n");
+  printf ("  int line;\n");
+  printf ("  int row;\n");
+  printf ("  int col;\n");
+  printf ("  long long val;\n");
+  printf ("  long long check;\n");
+  printf ("} test_tuples;\n");
+  printf ("\n");
+  printf ("typedef struct _test_spec {\n");
+  printf ("  const char *file;\n");
+  printf ("  const char *macro;\n");
+  printf ("  int nr_rows;\n");
+  printf ("  int nr_cols;\n");
+  printf ("  test_tuples *tuples;\n");
+  printf ("} test_spec;\n");
+}
+
+
+void
+gen_bit (int bitsize,
+	 int msb,
+	 const char *macro,
+	 int nr_bits)
+{
+  int i;
+
+  printf ("\n/* Test the BIT%s macro */\n", macro);
+  printf ("test_tuples bit%s_tuples[%d] = {\n", macro, nr_bits);
+  for (i = 0; i < nr_bits; i++)
+    {
+      /* compute what we think the value is */
+      long long bit = 1;
+      if (msb == 0)
+	bit <<= nr_bits - i - 1;
+      else
+	bit <<= i;
+      if (bitsize == 32)
+	bit = (long) bit;
+      /* write it out */
+      printf ("  { __LINE__, ");
+      printf ("%d, %d, ", -1, i);
+      printf ("BIT%s (%2d), ", macro, i);
+      printf ("0x%08lx%08lxLL, ", (long) (bit >> 32), (long) bit);
+      printf ("},\n");
+    }
+  printf ("};\n");
+  printf ("\n");
+  printf ("test_spec bit%s_test = { __FILE__, \"BIT%s\", 1, %d, bit%s_tuples, };\n",
+	  macro, macro, nr_bits, macro);
+  printf ("\n");
+}
+
+
+void
+gen_mask (int bitsize,
+	  const char *msb,
+	  const char *macro,
+	  int nr_bits)
+{
+  int l;
+  int h;
+  printf ("\n/* Test the %sMASK%s macro */\n", msb, macro);
+  printf ("test_tuples mask%s_tuples[%d][%d] = {\n", macro, nr_bits, nr_bits);
+  for (l = 0; l < nr_bits; l++)
+    {
+      printf ("  {\n");
+      for (h = 0; h < nr_bits; h++)
+	{
+	  printf ("    { __LINE__, ");
+	  if ((strcmp (msb, "MS") == 0 && l <= h)
+	      || (strcmp (msb, "MS") != 0 && l >= h)
+	      || (strcmp (macro, "") == 0))
+	    {
+	      /* compute the mask */
+	      long long mask = 0;
+	      int b;
+	      for (b = 0; b < nr_bits; b++)
+		{
+		  long long bit = 1;
+		  if (strcmp (msb, "MS") == 0)
+		    {
+		      if ((l <= b && b <= h)
+			  || (h < l && (b <= h || b >= l)))
+			bit <<= (nr_bits - b - 1);
+		      else
+			bit = 0;
+		    }
+		  else
+		    {
+		      if ((l >= b && b >= h)
+			  || (h > l && (b >= h || b <= l)))
+			bit <<= b;
+		      else
+			bit = 0;
+		    }
+		  mask |= bit;
+		}
+	      if (bitsize == 32)
+		mask = (unsigned long) mask;
+	      printf ("%d, %d, ", l, h);
+	      printf ("%sMASK%s (%2d, %2d), ", msb, macro, l, h);
+	      printf ("0x%08lx%08lxLL, ", (long) (mask >> 32), (long) mask);
+	    }
+	  else
+	    printf ("-1, -1, ");
+	  printf ("},\n");
+	}
+      printf ("  },\n");
+    }
+  printf ("};\n");
+  printf ("\n");
+  printf ("test_spec mask%s_test = { __FILE__, \"%sMASK%s\", %d, %d, &mask%s_tuples[0][0], };\n",
+	  macro, msb, macro, nr_bits, nr_bits, macro);
+  printf ("\n");
+}
+
+
+void
+usage (int reason)
+{
+  fprintf (stderr, "Usage:\n");
+  fprintf (stderr, "  bits-gen <nr-bits> <msb>\n");
+  fprintf (stderr, "Generate a test case for the simulator bit manipulation code\n");
+  fprintf (stderr, "  <nr-bits> = { 32 | 64 }\n");
+  fprintf (stderr, "  <msb> = { 0 | { 31 | 63 } }\n");
+
+  switch (reason)
+    {
+    case 1: fprintf (stderr, "Wrong number of arguments\n");
+      break;
+    case 2:
+      fprintf (stderr, "Invalid <nr-bits> argument\n");
+      break;
+    case 3:
+      fprintf (stderr, "Invalid <msb> argument\n");
+      break;
+    default:
+    }
+
+  exit (1);
+}
+
+
+
+int
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  int bitsize;
+  int msb;
+  char *ms;
+
+  /* parse the only argument */
+  if (argc != 3)
+    usage (1);
+  if (strcmp (argv [1], "32") == 0)
+    bitsize = 32;
+  else if (strcmp (argv [1], "64") == 0)
+    bitsize = 64;
+  else
+    usage (2);
+  if (strcmp (argv [2], "0") == 0)
+    msb = 0;
+  else if (strcmp (argv [2], "31") == 0 && bitsize == 32)
+    msb = 31;
+  else if (strcmp (argv [2], "63") == 0 && bitsize == 64)
+    msb = 63;
+  else
+    usage (3);
+  if (msb == 0)
+    ms = "MS";
+  else
+    ms = "LS";
+
+  printf ("#define WITH_TARGET_WORD_BITSIZE %d\n", bitsize);
+  printf ("#define WITH_TARGET_WORD_MSB %d\n", msb);
+  printf ("#define WITH_HOST_WORD_BITSIZE %d\n", sizeof (int) * 8);
+  printf ("\n");
+  printf ("#define SIM_BITS_INLINE (INCLUDE_MODULE | INCLUDED_BY_MODULE)\n");
+  printf ("\n");
+  printf ("#define ASSERT(X) do { if (!(X)) abort(); } while (0)\n");
+  printf ("\n");
+  printf ("#include \"sim-basics.h\"\n");
+  printf ("#include \"sim-types.h\"\n");
+  printf ("#include \"sim-bits.h\"\n");
+
+  gen_struct ();
+
+
+
+  printf ("#define DO_BIT_TESTS\n");
+  gen_bit ( 4, msb,  "4",  4);
+  gen_bit ( 5, msb,  "5",  5);
+  gen_bit ( 8, msb,  "8",  8);
+  gen_bit (10, msb, "10", 10);
+  gen_bit (16, msb, "16", 16);
+  gen_bit (32, msb, "32", 32);
+  gen_bit (64, msb, "64", 64);
+  gen_bit (bitsize, msb, "", 64);
+
+  printf ("test_spec *(bit_tests[]) = {\n");
+  printf ("  &bit4_test,\n");
+  printf ("  &bit5_test,\n");
+  printf ("  &bit8_test,\n");
+  printf ("  &bit10_test,\n");
+  printf ("  &bit16_test,\n");
+  printf ("  &bit32_test,\n");
+  printf ("  &bit64_test,\n");
+  printf ("  &bit_test,\n");
+  printf ("  0,\n");
+  printf ("};\n\n");
+
+
+
+  printf ("#define DO_MASK_TESTS\n");
+  gen_mask (16, ms, "16", 16);
+  gen_mask (32, ms, "32", 32);
+  gen_mask (64, ms, "64", 64);
+  gen_mask (bitsize, ms, "", 64);
+
+  printf ("test_spec *(mask_tests[]) = {\n");
+  printf ("  &mask16_test,\n");
+  printf ("  &mask32_test,\n");
+  printf ("  &mask64_test,\n");
+  printf ("  &mask_test,\n");
+  printf ("  0,\n");
+  printf ("};\n\n");
+
+  return 0;
+}