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-rw-r--r--sim/testsuite/common/bits-gen.c319
1 files changed, 319 insertions, 0 deletions
diff --git a/sim/testsuite/common/bits-gen.c b/sim/testsuite/common/bits-gen.c
new file mode 100644
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--- /dev/null
+++ b/sim/testsuite/common/bits-gen.c
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+/* 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 %s macro */\n", macro);
+ printf ("test_tuples %s_tuples[%d] = {\n", macro, nr_bits);
+ for (i = 0; i < nr_bits; i++)
+ {
+ /* compute what we think the value is */
+ unsigned long long bit = 1;
+ if (msb == 0)
+ bit <<= nr_bits - i - 1;
+ else
+ bit <<= i;
+ if (bitsize == 32)
+ bit = (unsigned) bit; /* truncate it! */
+ /* write it out */
+ printf (" { __LINE__, ");
+ printf ("%d, %2d, ", -1, i);
+ printf ("%s (%2d), ", macro, i);
+ printf ("UNSIGNED64 (0x%08lx%08lx), ",
+ (long) (bit >> 32), (long) bit);
+ printf ("},\n");
+ }
+ printf ("};\n");
+ printf ("\n");
+ printf ("test_spec %s_test = { __FILE__, \"%s\", 1, %d, %s_tuples, };\n",
+ macro, macro, nr_bits, macro);
+ printf ("\n");
+}
+
+
+void
+gen_enum (const char *macro,
+ int nr_bits)
+{
+ int i;
+
+ printf ("\n/* Test the %s macro in an enum */\n", macro);
+ printf ("enum enum_%s {\n", macro);
+ for (i = 0; i < nr_bits; i++)
+ {
+ printf (" elem_%s_%d = %s (%d),\n", macro, i, macro, i);
+ }
+ printf ("};\n");
+ printf ("\n");
+}
+
+
+void
+gen_mask (int bitsize,
+ const char *msb,
+ const char *macro,
+ int nr_bits)
+{
+ int l;
+ int h;
+ printf ("\n/* Test the %s%s macro */\n", msb, macro);
+ printf ("test_tuples %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 */
+ unsigned long long mask = 0;
+ int b;
+ for (b = 0; b < nr_bits; b++)
+ {
+ unsigned 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 ("%s%s (%2d, %2d), ", msb, macro, l, h);
+ printf ("UNSIGNED64 (0x%08lx%08lx), ",
+ (long) (mask >> 32), (long) mask);
+ }
+ else
+ printf ("-1, -1, ");
+ printf ("},\n");
+ }
+ printf (" },\n");
+ }
+ printf ("};\n");
+ printf ("\n");
+ printf ("test_spec %s_test = { __FILE__, \"%s%s\", %d, %d, &%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> <byte-order>\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");
+ fprintf (stderr, " <byte-order> = { big | little }\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;
+ case 4:
+ fprintf (stderr, "Invalid <byte-order> argument\n");
+ break;
+ default:
+ }
+
+ exit (1);
+}
+
+
+
+int
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ int bitsize;
+ int msb;
+ char *ms;
+ int big_endian;
+
+ if (argc != 4)
+ 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";
+
+ if (strcmp (argv [3], "big") == 0)
+ big_endian = 1;
+ else if (strcmp (argv [3], "little") == 0)
+ big_endian = 0;
+ else
+ usage (4);
+
+ 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 ("#define WITH_TARGET_BYTE_ORDER %s\n", big_endian ? "BIG_ENDIAN" : "LITTLE_ENDIAN");
+ printf ("\n");
+ printf ("#define SIM_BITS_INLINE (ALL_H_INLINE)\n");
+ printf ("\n");
+ printf ("#define ASSERT(X) do { if (!(X)) abort(); } while (0)\n");
+ printf ("\n");
+ printf ("#include \"sim-basics.h\"\n");
+
+ gen_struct ();
+
+
+
+ printf ("#define DO_BIT_TESTS\n");
+ gen_bit ( 4, msb, "BIT4", 4);
+ gen_bit ( 5, msb, "BIT5", 5);
+ gen_bit ( 8, msb, "BIT8", 8);
+ gen_bit (10, msb, "BIT10", 10);
+ gen_bit (16, msb, "BIT16", 16);
+ gen_bit (32, msb, "BIT32", 32);
+ gen_bit (64, msb, "BIT64", 64);
+ gen_bit (bitsize, msb, "BIT", 64);
+
+ gen_bit ( 8, 8 - 1, "LSBIT8", 8);
+ gen_bit (16, 16 - 1, "LSBIT16", 16);
+ gen_bit (32, 32 - 1, "LSBIT32", 32);
+ gen_bit (64, 64 - 1, "LSBIT64", 64);
+ gen_bit (bitsize, bitsize - 1, "LSBIT", 64);
+
+ gen_bit ( 8, 0, "MSBIT8", 8);
+ gen_bit (16, 0, "MSBIT16", 16);
+ gen_bit (32, 0, "MSBIT32", 32);
+ gen_bit (64, 0, "MSBIT64", 64);
+ gen_bit (bitsize, 0, "MSBIT", 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 (" &LSBIT8_test,\n");
+ printf (" &LSBIT16_test,\n");
+ printf (" &LSBIT32_test,\n");
+ printf (" &LSBIT64_test,\n");
+ printf (" &LSBIT_test,\n");
+ printf (" &MSBIT8_test,\n");
+ printf (" &MSBIT16_test,\n");
+ printf (" &MSBIT32_test,\n");
+ printf (" &MSBIT64_test,\n");
+ printf (" &MSBIT_test,\n");
+ printf (" 0,\n");
+ printf ("};\n\n");
+
+ gen_enum ("BIT", 64);
+ gen_enum ("LSBIT", 64);
+ gen_enum ("MSBIT", 64);
+ gen_enum ("BIT32", 32);
+ gen_enum ("LSBIT32", 32);
+ gen_enum ("MSBIT32", 32);
+
+ printf ("#define DO_MASK_TESTS\n");
+ gen_mask ( 8, ms, "MASK8", 8);
+ gen_mask (16, ms, "MASK16", 16);
+ gen_mask (32, ms, "MASK32", 32);
+ gen_mask (64, ms, "MASK64", 64);
+ gen_mask (bitsize, ms, "MASK", 64);
+
+ printf ("test_spec *(mask_tests[]) = {\n");
+ printf (" &MASK8_test,\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;
+}
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