sim/w65/run.c

   1 /* run front end support for W65
   2    Copyright (C) 1995 Free Software Foundation, Inc.
   3
   4 This file is part of W65 SIM
   5
   6 GNU CC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU CC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20
  21 /* Steve Chamberlain
  22    sac@cygnus.com */
  23
  24 #include <stdio.h>
  25 #include "bfd.h"
  26 #include "sysdep.h"
  27
  28 void usage();
  29 extern int optind;
  30
  31 int
  32 main (ac, av)
  33      int ac;
  34      char **av;
  35 {
  36   bfd *abfd;
  37   bfd_vma start_address;
  38   asection *s;
  39   int i;
  40   int verbose = 0;
  41   int trace = 0;
  42   char *name = "";
  43
  44   while ((i = getopt (ac, av, "tv")) != EOF)
  45     switch (i)
  46       {
  47       case 't':
  48         trace = 1;
  49         break;
  50       case 'v':
  51         verbose = 1;
  52         break;
  53       default:
  54         usage();
  55       }
  56   ac -= optind;
  57   av += optind;
  58
  59   if (ac != 1)
  60     usage();
  61
  62   name = *av;
  63
  64   if (verbose)
  65     {
  66       printf ("run %s\n", name);
  67     }
  68   abfd = bfd_openr (name, "coff-w65");
  69   if (abfd)
  70     {
  71
  72       if (bfd_check_format (abfd, bfd_object))
  73         {
  74
  75           for (s = abfd->sections; s; s = s->next)
  76             {
  77               unsigned char *buffer = malloc (bfd_section_size (abfd, s));
  78               bfd_get_section_contents (abfd,
  79                                         s,
  80                                         buffer,
  81                                         0,
  82                                         bfd_section_size (abfd, s));
  83               sim_write (s->vma, buffer, bfd_section_size (abfd, s));
  84               free (buffer);
  85             }
  86
  87           start_address = bfd_get_start_address (abfd);
  88           sim_set_pc (start_address);
  89           if (trace)
  90             {
  91               int done = 0;
  92               while (!done)
  93                 {
  94                   done = sim_trace ();
  95                 }
  96             }
  97           else
  98             {
  99               sim_resume (0, 0);
 100             }
 101           if (verbose)
 102             sim_info (printf, 0);
 103
 104           /* Find out what was in r0 and return that */
 105           {
 106             unsigned char b[4];
 107             sim_fetch_register(0, b);
 108             return b[3];
 109           }
 110
 111         }
 112     }
 113
 114   return 1;
 115 }
 116
 117 void
 118 usage()
 119 {
 120   fprintf (stderr, "usage: run [-tv] program\n");
 121   exit (1);
 122 }