diff --git a/sim/testsuite/common/bits-gen.c b/sim/testsuite/common/bits-gen.c new file mode 100644 index 0000000000..5feb5a0a6d --- /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 + + +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 \n"); + fprintf (stderr, "Generate a test case for the simulator bit manipulation code\n"); + fprintf (stderr, " = { 32 | 64 }\n"); + fprintf (stderr, " = { 0 | { 31 | 63 } }\n"); + + switch (reason) + { + case 1: fprintf (stderr, "Wrong number of arguments\n"); + break; + case 2: + fprintf (stderr, "Invalid argument\n"); + break; + case 3: + fprintf (stderr, "Invalid 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 0000000000..576dbe40cf --- /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; +}