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 "config.h"
  25
  26 #include <stdio.h>
  27 #ifdef HAVE_STDLIB_H
  28 #include <stdlib.h>
  29 #endif
  30 #include "getopt.h"
  31 #include "bfd.h"
  32
  33 #ifdef NEED_DECLARATION_PRINTF
  34 extern int printf ();
  35 #endif
  36
  37 void usage();
  38 extern int optind;
  39
  40 int
  41 main (ac, av)
  42      int ac;
  43      char **av;
  44 {
  45   bfd *abfd;
  46   bfd_vma start_address;
  47   asection *s;
  48   int i;
  49   int verbose = 0;
  50   int trace = 0;
  51   char *name = "";
  52
  53   while ((i = getopt (ac, av, "tv")) != EOF)
  54     switch (i)
  55       {
  56       case 't':
  57         trace = 1;
  58         break;
  59       case 'v':
  60         verbose = 1;
  61         break;
  62       default:
  63         usage();
  64       }
  65   ac -= optind;
  66   av += optind;
  67
  68   if (ac != 1)
  69     usage();
  70
  71   name = *av;
  72
  73   if (verbose)
  74     {
  75       printf ("run %s\n", name);
  76     }
  77   abfd = bfd_openr (name, "coff-w65");
  78   if (abfd)
  79     {
  80
  81       if (bfd_check_format (abfd, bfd_object))
  82         {
  83
  84           for (s = abfd->sections; s; s = s->next)
  85             {
  86               unsigned char *buffer = malloc (bfd_section_size (abfd, s));
  87               bfd_get_section_contents (abfd,
  88                                         s,
  89                                         buffer,
  90                                         0,
  91                                         bfd_section_size (abfd, s));
  92               sim_write (s->vma, buffer, bfd_section_size (abfd, s));
  93               free (buffer);
  94             }
  95
  96           start_address = bfd_get_start_address (abfd);
  97           sim_set_pc (start_address);
  98           if (trace)
  99             {
 100               int done = 0;
 101               while (!done)
 102                 {
 103                   done = sim_trace ();
 104                 }
 105             }
 106           else
 107             {
 108               sim_resume (0, 0);
 109             }
 110           if (verbose)
 111             sim_info (printf, 0);
 112
 113           /* Find out what was in r0 and return that */
 114           {
 115             unsigned char b[4];
 116             sim_fetch_register(0, b, 4);
 117             return b[3];
 118           }
 119
 120         }
 121     }
 122
 123   return 1;
 124 }
 125
 126 void
 127 usage()
 128 {
 129   fprintf (stderr, "usage: run [-tv] program\n");
 130   exit (1);
 131 }