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108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
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/* Generate data for fpioconst.c.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <inttypes.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <gmp.h>
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int
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main (void)
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{
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FILE *out32 = fopen ("fpioconst-32", "w");
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if (out32 == NULL)
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abort ();
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FILE *out64 = fopen ("fpioconst-64", "w");
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if (out64 == NULL)
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abort ();
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FILE *outtable = fopen ("fpioconst-table", "w");
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if (outtable == NULL)
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abort ();
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mpz_t p;
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mpz_init (p);
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for (int i = 0; i <= 14; i++)
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{
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int j = 1 << i;
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mpz_ui_pow_ui (p, 10, j - 1);
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int exp_m = mpz_sizeinbase (p, 2);
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mpz_ui_pow_ui (p, 10, j);
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int exp_p = mpz_sizeinbase (p, 2);
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int size32 = 2 + (exp_p + 31) / 32;
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int size64 = 1 + (exp_p + 63) / 64;
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uint32_t data32[size32];
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uint64_t data64[size64];
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memset (data32, 0, sizeof data32);
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memset (data64, 0, sizeof data64);
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mpz_export (data32 + 2, NULL, -1, 4, 0, 0, p);
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mpz_export (data64 + 1, NULL, -1, 8, 0, 0, p);
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if (i == 0)
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{
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fprintf (out32, "#define TENS_P%d_IDX\t0\n", i);
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fprintf (out64, "#define TENS_P%d_IDX\t0\n", i);
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}
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else
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{
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fprintf (out32, "#define TENS_P%d_IDX\t"
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"(TENS_P%d_IDX + TENS_P%d_SIZE)\n",
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i, i - 1, i - 1);
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fprintf (out64, "#define TENS_P%d_IDX\t"
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"(TENS_P%d_IDX + TENS_P%d_SIZE)\n",
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i, i - 1, i - 1);
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}
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fprintf (out32, "#define TENS_P%d_SIZE\t%d\n", i, size32);
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fprintf (out64, "#define TENS_P%d_SIZE\t%d\n", i, size64);
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for (int k = 0; k < size32; k++)
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{
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if (k == 0)
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fprintf (out32, " [TENS_P%d_IDX] = ", i);
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else if (k % 6 == 5)
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fprintf (out32, "\n ");
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else
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fprintf (out32, " ");
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fprintf (out32, "0x%08"PRIx32",", data32[k]);
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}
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for (int k = 0; k < size64; k++)
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{
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if (k == 0)
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fprintf (out64, " [TENS_P%d_IDX] = ", i);
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else if (k % 3 == 2)
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fprintf (out64, "\n ");
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else
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fprintf (out64, " ");
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fprintf (out64, "0x%016"PRIx64"ull,", data64[k]);
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}
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fprintf (out32, "\n\n");
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fprintf (out64, "\n\n");
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const char *t = (i >= 10 ? "\t" : "\t\t");
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if (i == 0)
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fprintf (outtable, " { TENS_P%d_IDX, TENS_P%d_SIZE,%s%d,\t },\n",
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i, i, t, exp_p);
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else
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fprintf (outtable, " { TENS_P%d_IDX, TENS_P%d_SIZE,%s%d,\t%5d },\n",
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i, i, t, exp_p, exp_m);
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}
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if (fclose (out32) != 0)
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abort ();
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if (fclose (out64) != 0)
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abort ();
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if (fclose (outtable) != 0)
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abort ();
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return 0;
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}
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