Check MS* macros from sim/common.

2 files changed, 574 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;
+}
diff --git a/sim/testsuite/common/bits-tst.c b/sim/testsuite/common/bits-tst.c
new file mode 100644
index 0000000..576dbe4
--- /dev/null
+++ b/sim/testsuite/common/bits-tst.c
@@ -0,0 +1,315 @@
+# 2 "bits-tst.c"
+
+/* Drive the bit test routines */
+
+
+long long
+calc (const char *call,
+      long long val,
+      int row,
+      int col)
+{
+  if (strcmp (call, "MASK") == 0)
+    return MASKED (val, row, col);
+  if (strcmp (call, "MASK16") == 0)
+    return MASKED16 (val, row, col);
+  if (strcmp (call, "MASK32") == 0)
+    return MASKED32 (val, row, col);
+  if (strcmp (call, "MASK64") == 0)
+    return MASKED64 (val, row, col);
+
+  if (strcmp (call, "EXTRACT") == 0)
+    return EXTRACTED (val, row, col);
+  if (strcmp (call, "EXTRACT16") == 0)
+    return EXTRACTED16 (val, row, col);
+  if (strcmp (call, "EXTRACT32") == 0)
+    return EXTRACTED32 (val, row, col);
+  if (strcmp (call, "EXTRACT64") == 0)
+    return EXTRACTED64 (val, row, col);
+
+  if (strcmp (call, "LSEXTRACT") == 0)
+    return LSEXTRACTED (val, row, col);
+  if (strcmp (call, "LSEXTRACT16") == 0)
+    return LSEXTRACTED16 (val, row, col);
+  if (strcmp (call, "LSEXTRACT32") == 0)
+    return LSEXTRACTED32 (val, row, col);
+  if (strcmp (call, "LSEXTRACT64") == 0)
+    return LSEXTRACTED64 (val, row, col);
+
+  if (strcmp (call, "MSEXTRACT") == 0)
+    return MSEXTRACTED (val, row, col);
+  if (strcmp (call, "MSEXTRACT16") == 0)
+    return MSEXTRACTED16 (val, row, col);
+  if (strcmp (call, "MSEXTRACT32") == 0)
+    return MSEXTRACTED32 (val, row, col);
+  if (strcmp (call, "MSEXTRACT64") == 0)
+    return MSEXTRACTED64 (val, row, col);
+
+  if (strcmp (call, "INSERT") == 0)
+    return INSERTED (val, row, col);
+  if (strcmp (call, "INSERT16") == 0)
+    return INSERTED16 (val, row, col);
+  if (strcmp (call, "INSERT32") == 0)
+    return INSERTED32 (val, row, col);
+  if (strcmp (call, "INSERT64") == 0)
+    return INSERTED64 (val, row, col);
+
+  if (strcmp (call, "MSMASK") == 0)
+    return MSMASKED (val, row, col);
+  if (strcmp (call, "MSMASK16") == 0)
+    return MSMASKED16 (val, row, col);
+  if (strcmp (call, "MSMASK32") == 0)
+    return MSMASKED32 (val, row, col);
+  if (strcmp (call, "MSMASK64") == 0)
+    return MSMASKED64 (val, row, col);
+
+  if (strcmp (call, "LSMASK") == 0)
+    return LSMASKED (val, row, col);
+  if (strcmp (call, "LSMASK16") == 0)
+    return LSMASKED16 (val, row, col);
+  if (strcmp (call, "LSMASK32") == 0)
+    return LSMASKED32 (val, row, col);
+  if (strcmp (call, "LSMASK64") == 0)
+    return LSMASKED64 (val, row, col);
+
+  if (strcmp (call, "ROT16") == 0)
+    return ROT16 (val, col);
+  if (strcmp (call, "ROT32") == 0)
+    return ROT32 (val, col);
+  if (strcmp (call, "ROT64") == 0)
+    return ROT64 (val, col);
+
+  if (strcmp (call, "SEXT16") == 0)
+    return SEXT16 (val, col);
+  if (strcmp (call, "SEXT32") == 0)
+    return SEXT32 (val, col);
+  if (strcmp (call, "SEXT64") == 0)
+    return SEXT64 (val, col);
+  if (strcmp (call, "SEXT") == 0)
+    return SEXT (val, col);
+
+  else
+    {
+      fprintf (stderr, "Unknown call passed to calc (%s, 0x%08lx%08lx, %d, %d)\n",
+	       call, (long)(val >> 32), (long)val, row, col);
+      abort ();
+      return val;
+    }
+}
+
+
+int
+check_sext (int nr_bits,
+	    const char *sexted,
+	    const char *masked,
+	    const char *msmasked)
+{
+  int errors = 0;
+  int col;
+  for (col = 0; col < nr_bits; col ++)
+    {
+      long long mask = calc (masked, -1, col, col);
+      long long msmask = calc (msmasked, -1,
+			       0, (WITH_TARGET_WORD_MSB ? nr_bits - col - 1 : col));
+      long long sext = calc (sexted, mask, -1, col);
+      long long mask_1 = mask >> 1;
+      long long sext_1 = calc (sexted, mask_1, -1, col);
+      if (mask_1 != sext_1)
+	{
+	  fprintf (stderr, "%s:%d: ", __FILE__, __LINE__);
+	  fprintf (stderr, " %s(0x%08lx%08lx,%d) != 0x%08lx%08lx\n",
+		   sexted,
+		   (long)(mask_1 >> 32), (long)mask_1,
+		   col,
+		   (long)(sext_1 >> 32), (long)sext_1);
+	  errors ++;
+	}
+      if (sext != msmask)
+	{
+	  fprintf (stderr, "%s:%d: ", __FILE__, __LINE__);
+	  fprintf (stderr, " %s(0x%08lx%08lx,%d) == 0x%08lx%08lx wrong, != 0x%08lx%08lx\n",
+		   sexted, (long)(mask >> 32), (long)mask, col,
+		   (long)(sext >> 32), (long)sext,
+		   (long)(msmask >> 32), (long)msmask);
+	  errors ++;
+	}
+
+    }
+  return errors;
+}
+
+
+int
+check_rot (int nr_bits,
+	   const char *roted,
+	   const char *masked)
+{
+  int errors = 0;
+  int row;
+  int col;
+  for (row = 0; row < nr_bits; row++)
+    for (col = 0; col < nr_bits; col++)
+      if ((WITH_TARGET_WORD_MSB == 0 && row <= col)
+	  || (WITH_TARGET_WORD_MSB != 0 && row >= col))
+	{
+	  long long mask = calc (masked, -1, row, col);
+	  int shift;
+	  for (shift = -nr_bits + 1; shift < nr_bits; shift ++)
+	    {
+	      long long rot = calc (roted, mask, -1, shift);
+	      long long urot = calc (roted, rot, -1, -shift);
+	      if (mask != urot
+		  || (shift == 0 && rot != mask)
+		  || (shift != 0 && rot == mask && abs(row - col) != (nr_bits - 1)))
+		{
+		  fprintf (stderr, "%s:%d: ", __FILE__, __LINE__);
+		  fprintf (stderr, " %s(%s(0x%08lx%08lx,%d) == 0x%08lx%08lx, %d) failed\n",
+			   roted, roted,
+			   (long)(mask >> 32), (long)mask, shift,
+			   (long)(urot >> 32), (long)urot, -shift);
+		  errors ++;
+		}
+	    }
+	}
+  return errors;
+}
+
+
+int
+check_extract (int nr_bits,
+	       const char *extracted,
+	       const char *inserted,
+	       const char *masked)
+{
+  int errors = 0;
+  int row;
+  int col;
+  for (row = 0; row < nr_bits; row++)
+    for (col = 0; col < nr_bits; col ++)
+      if ((WITH_TARGET_WORD_MSB == 0 && row <= col)
+	  || (WITH_TARGET_WORD_MSB != 0 && row >= col))
+	{
+	  long long mask = calc (masked, -1, row, col);
+	  long long extr = calc (extracted, mask, row, col);
+	  long long inst = calc (inserted, extr, row, col);
+	  if (mask != inst)
+	    {
+	      fprintf (stderr, "%s:%d: ", __FILE__, __LINE__);
+	      fprintf (stderr, " %s(%d,%d)=0x%08lx%08lx -> %s=0x%08lx%08lx -> %s=0x%08lx%08lx failed\n",
+		       masked, row, col, (long)(mask >> 32), (long)mask,
+		       extracted, (long)(extr >> 32), (long)extr,
+		       inserted, (long)(inst >> 32), (long)inst);
+	      errors ++;
+	    }
+	}
+  return errors;
+}
+
+
+int
+check_bits (int call,
+	    test_spec **tests)
+{
+  int r;
+  int c;
+  int errors = 0;
+  while (*tests != NULL)
+    {
+      int nr_rows = (*tests)->nr_rows;
+      int nr_cols = (*tests)->nr_cols;
+      test_tuples *tuples = (*tests)->tuples;
+      for (r = 0; r < nr_rows; r++)
+	for (c = 0; c < nr_cols; c++)
+	  {
+	    int i = r * nr_rows + c;
+	    test_tuples *tuple = &tuples[i];
+	    if (tuple->col >= 0)
+	      {
+		long long val = (!call ? tuple->val : calc ((*tests)->macro, -1,
+							    tuple->row, tuple->col));
+		long long check = tuple->check;
+		if (val != check)
+		  {
+		    fprintf (stderr, "%s:%d:", (*tests)->file, tuple->line);
+		    fprintf (stderr, " %s", (*tests)->macro);
+		    if (tuple->row >= 0)
+		      fprintf (stderr, " (%d, %d)", tuple->row, tuple->col);
+		    else
+		      fprintf (stderr, " (%d)", tuple->col);
+		    fprintf (stderr, " == 0x%08lx%08lx wrong, != 0x%08lx%08lx)\n",
+			     (long) (val >> 32), (long) val,
+			     (long) (check >> 32), (long) check);
+		    errors ++;
+		  }
+	      }
+	  }
+      tests ++;
+    }
+  return errors;
+}     
+
+
+int
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  int errors = 0;
+
+
+#if defined (DO_BIT_TESTS)
+  printf ("Checking BIT*\n");
+  errors += check_bits (0, bit_tests);
+#endif
+
+
+#if defined (DO_MASK_TESTS)
+  printf ("Checking MASK*\n");
+  errors += check_bits (0, mask_tests);
+
+  printf ("Checking MASKED*\n");
+  errors += check_bits (1, mask_tests);
+#endif
+
+
+#if defined (DO_LSMASK_TESTS)
+  printf ("Checking LSMASK*\n");
+  errors += check_bits (0, lsmask_tests);
+
+  printf ("Checking LSMASKED*\n");
+  errors += check_bits (1, lsmask_tests);
+#endif
+
+
+#if defined (DO_MSMASK_TESTS)
+  printf ("Checking MSMASK*\n");
+  errors += check_bits (0, msmask_tests);
+
+  printf ("Checking MSMASKED*\n");
+  errors += check_bits (1, msmask_tests);
+#endif
+
+
+  printf ("Checking EXTRACTED*\n");
+  errors += check_extract (16, "EXTRACT16", "INSERT16", "MASK16");
+  errors += check_extract (32, "EXTRACT32", "INSERT32", "MASK32");
+  errors += check_extract (64, "EXTRACT64", "INSERT64", "MASK64");
+  errors += check_extract (64, "EXTRACT", "INSERT", "MASK");
+
+
+
+  printf ("Checking SEXT*\n");
+  errors += check_sext (16, "SEXT16", "MASK16", "MSMASK16");
+  errors += check_sext (32, "SEXT32", "MASK32", "MSMASK32");
+  errors += check_sext (64, "SEXT64", "MASK64", "MSMASK64");
+  errors += check_sext (64, "SEXT", "MASK", "MSMASK");
+  
+
+  printf ("Checking ROT*\n");
+  errors += check_rot (16, "ROT16", "MASK16");
+  errors += check_rot (32, "ROT32", "MASK32");
+  errors += check_rot (64, "ROT64", "MASK64");
+
+
+  return errors != 0;
+}