/* Generate data for fpioconst.c.

   Copyright (C) 2012-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <inttypes.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <gmp.h>

#include <stdint.h>

int

main (void)

{

  FILE *out32 = fopen ("fpioconst-32", "w");

  if (out32 == NULL)

    abort ();

  FILE *out64 = fopen ("fpioconst-64", "w");

  if (out64 == NULL)

    abort ();

  FILE *outtable = fopen ("fpioconst-table", "w");

  if (outtable == NULL)

    abort ();

  mpz_t p;

  mpz_init (p);

  for (int i = 0; i <= 14; i++)

    {

      int j = 1 << i;

      mpz_ui_pow_ui (p, 10, j - 1);

      int exp_m = mpz_sizeinbase (p, 2);

      mpz_ui_pow_ui (p, 10, j);

      int exp_p = mpz_sizeinbase (p, 2);

      int size32 = 2 + (exp_p + 31) / 32;

      int size64 = 1 + (exp_p + 63) / 64;

      uint32_t data32[size32];

      uint64_t data64[size64];

      memset (data32, 0, sizeof data32);

      memset (data64, 0, sizeof data64);

      mpz_export (data32 + 2, NULL, -1, 4, 0, 0, p);

      mpz_export (data64 + 1, NULL, -1, 8, 0, 0, p);

      if (i == 0)

	{

	  fprintf (out32, "#define TENS_P%d_IDX\t0\n", i);

	  fprintf (out64, "#define TENS_P%d_IDX\t0\n", i);

	}

      else

	{

	  fprintf (out32, "#define TENS_P%d_IDX\t"

		   "(TENS_P%d_IDX + TENS_P%d_SIZE)\n",

		   i, i - 1, i - 1);

	  fprintf (out64, "#define TENS_P%d_IDX\t"

		   "(TENS_P%d_IDX + TENS_P%d_SIZE)\n",

		   i, i - 1, i - 1);

	}

      fprintf (out32, "#define TENS_P%d_SIZE\t%d\n", i, size32);

      fprintf (out64, "#define TENS_P%d_SIZE\t%d\n", i, size64);

      for (int k = 0; k < size32; k++)

	{

	  if (k == 0)

	    fprintf (out32, "  [TENS_P%d_IDX] = ", i);

	  else if (k % 6 == 5)

	    fprintf (out32, "\n  ");

	  else

	    fprintf (out32, " ");

	  fprintf (out32, "0x%08"PRIx32",", data32[k]);

	}

      for (int k = 0; k < size64; k++)

	{

	  if (k == 0)

	    fprintf (out64, "  [TENS_P%d_IDX] = ", i);

	  else if (k % 3 == 2)

	    fprintf (out64, "\n  ");

	  else

	    fprintf (out64, " ");

	  fprintf (out64, "0x%016"PRIx64"ull,", data64[k]);

	}

      fprintf (out32, "\n\n");

      fprintf (out64, "\n\n");

      const char *t = (i >= 10 ? "\t" : "\t\t");

      if (i == 0)

	fprintf (outtable, "  { TENS_P%d_IDX, TENS_P%d_SIZE,%s%d,\t      },\n",

		 i, i, t, exp_p);

      else

	fprintf (outtable, "  { TENS_P%d_IDX, TENS_P%d_SIZE,%s%d,\t%5d },\n",

		 i, i, t, exp_p, exp_m);

    }

  if (fclose (out32) != 0)

    abort ();

  if (fclose (out64) != 0)

    abort ();

  if (fclose (outtable) != 0)

    abort ();

  return 0;

}