text: /***************************************************************************
   *             __________               __   ___.                  
   *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___  
   *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /  
   *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <   
   *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \  
   *                     \/            \/     \/    \/            \/ 
   * $Id$
   *
   * Copyright (C) 2007 by Michael Sevakis
   *
   * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
   * KIND, either express or implied.
   *
   ****************************************************************************/
  #ifndef _SYSTEM_SDL_H_
  #define _SYSTEM_SDL_H_
  
  #include <stdbool.h>
  #include "config.h"
  #include "gcc_extensions.h"
  
  #define HIGHEST_IRQ_LEVEL 1
  
  int set_irq_level(int level);
  
  #define disable_irq() \
      ((void)set_irq_level(HIGHEST_IRQ_LEVEL))
  
  #define enable_irq()  \
      ((void)set_irq_level(0))
  
  #define disable_irq_save() \
      set_irq_level(HIGHEST_IRQ_LEVEL)
  
  #define restore_irq(level) \
      ((void)set_irq_level(level))
  
  #ifndef HAVE_SDL_THREADS
  void wait_for_interrupt(void);
  #else
  #define wait_for_interrupt()
  #endif
  
  #include "system-hosted.h"
  
  void sim_enter_irq_handler(void);
  void sim_exit_irq_handler(void);
  void sim_kernel_shutdown(void);
  void sys_poweroff(void);
  void sys_handle_argv(int argc, char *argv[]);
  void gui_message_loop(void);
  void sim_do_exit(void) NORETURN_ATTR;
  void sdl_sys_quit(void);
  
  extern bool background;  /* True if the background image is enabled */
  extern bool showremote;
  extern double display_zoom;
  extern long start_tick;
  
  #endif /* _SYSTEM_SDL_H_ */
  