sim/ppc/misc.c

   1 /*  This file is part of the program psim.
   2
   3     Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19     */
  20
  21
  22 #include <stdio.h>
  23 #include <stdarg.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "misc.h"
  28
  29 void
  30 error (char *msg, ...)
  31 {
  32   va_list ap;
  33   va_start(ap, msg);
  34   vprintf(msg, ap);
  35   va_end(ap);
  36   exit (1);
  37 }
  38
  39 void *
  40 zalloc(long size)
  41 {
  42   void *memory = malloc(size);
  43   if (memory == NULL)
  44     error("zalloc failed\n");
  45   bzero(memory, size);
  46   return memory;
  47 }
  48
  49 void
  50 dumpf (int indent, char *msg, ...)
  51 {
  52   va_list ap;
  53   for (; indent > 0; indent--)
  54     printf(" ");
  55   va_start(ap, msg);
  56   vprintf(msg, ap);
  57   va_end(ap);
  58 }
  59
  60
  61 int
  62 it_is(const char *flag,
  63       const char *flags)
  64 {
  65   int flag_len = strlen(flag);
  66   while (*flags != '\0') {
  67     if (!strncmp(flags, flag, flag_len)
  68         && (flags[flag_len] == ',' || flags[flag_len] == '\0'))
  69       return 1;
  70     while (*flags != ',') {
  71       if (*flags == '\0')
  72         return 0;
  73       flags++;
  74     }
  75     flags++;
  76   }
  77   return 0;
  78 }
  79
  80
  81 unsigned
  82 a2i(const char *a)
  83 {
  84   return strtoul(a, 0, 0);
  85 }
  86
  87 unsigned
  88 target_a2i(int ms_bit_nr,
  89            const char *a)
  90 {
  91   if (ms_bit_nr)
  92     return (ms_bit_nr - strtoul(a, 0, 0));
  93   else
  94     return strtoul(a, 0, 0);
  95 }
  96
  97 unsigned
  98 i2target(int ms_bit_nr,
  99          unsigned bit)
 100 {
 101   if (ms_bit_nr)
 102     return ms_bit_nr - bit;
 103   else
 104     return bit;
 105 }
 106
 107