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/*  This file is part of the program psim.

    Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>

    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 of the License, 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>

#include <stdarg.h>

#include <ctype.h>

#include "config.h"

#include "misc.h"

#ifdef HAVE_STDLIB_H

#include <stdlib.h>

#endif

#ifdef HAVE_STRING_H

#include <string.h>

#else

#ifdef HAVE_STRINGS_H

#include <strings.h>

#endif

#endif

void

error (char *msg, ...)

{

  va_list ap;

  va_start(ap, msg);

  vprintf(msg, ap);

  va_end(ap);

  exit (1);

}

void *

zalloc(long size)

{

  void *memory = malloc(size);

  if (memory == NULL)

    error("zalloc failed\n");

  memset(memory, 0, size);

  return memory;

}

void

dumpf (int indent, char *msg, ...)

{

  va_list ap;

  for (; indent > 0; indent--)

    printf(" ");

  va_start(ap, msg);

  vprintf(msg, ap);

  va_end(ap);

}

unsigned

a2i(const char *a)

{

  int neg = 0;

  int base = 10;

  unsigned num = 0;

  int looping;

  while (isspace (*a))

    a++;

  if (*a == '-') {

    neg = 1;

    a++;

  }

  if (*a == '0') {

    if (a[1] == 'x' || a[1] == 'X') {

      a += 2;

      base = 16;

    }

    else

      base = 8;

  }

  looping = 1;

  while (looping) {

    int ch = *a++;

    switch (base) {

    default:

      looping = 0;

      break;

    case 10:

      if (ch >= '0' && ch <= '9') {

        num = (num * 10) + (ch - '0');

      } else {

        looping = 0;

      }

      break;

    case 8:

      if (ch >= '0' && ch <= '7') {

        num = (num * 8) + (ch - '0');

      } else {

        looping = 0;

      }

      break;

    case 16:

      if (ch >= '0' && ch <= '9') {

        num = (num * 16) + (ch - '0');

      } else if (ch >= 'a' && ch <= 'f') {

        num = (num * 16) + (ch - 'a' + 10);

      } else if (ch >= 'A' && ch <= 'F') {

        num = (num * 16) + (ch - 'A' + 10);

      } else {

        looping = 0;

      }

      break;

    }

  }

  if (neg)

    num = - num;

  return num;

}

unsigned

target_a2i(int ms_bit_nr,

           const char *a)

{

  if (ms_bit_nr)

    return (ms_bit_nr - a2i(a));

  else

    return a2i(a);

}

unsigned

i2target(int ms_bit_nr,

         unsigned bit)

{

  if (ms_bit_nr)

    return ms_bit_nr - bit;

  else

    return bit;

}

int

name2i(const char *names,

       const name_map *map)

{

  const name_map *curr;

  const char *name = names;

  while (*name != '\0') {

    /* find our name */

    char *end = strchr(name, ',');

    char *next;

    int len;

    if (end == NULL) {

      end = strchr(name, '\0');

      next = end;

    }

    else {

      next = end + 1;

    }

    len = end - name;

    /* look it up */

    curr = map;

    while (curr->name != NULL) {

      if (strncmp(curr->name, name, len) == 0

          && strlen(curr->name) == len)

        return curr->i;

      curr++;

    }

    name = next;

  }

  /* nothing found, possibly return a default */

  curr = map;

  while (curr->name != NULL)

    curr++;

  if (curr->i >= 0)

    return curr->i;

  else

    error("%s contains no valid names\n", names);

  return 0;

}

const char *

i2name(const int i,

       const name_map *map)

{

  while (map->name != NULL) {

    if (map->i == i)

      return map->name;

    map++;

  }

  error("map lookup failed for %d\n", i);

  return NULL;

}