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emulateur/epsilon-nofrendo/apps/nes/nofrendo/mappers/map002.c 2.11 KB
6663b6c9   adorian   projet complet av...
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  /*
  ** Nofrendo (c) 1998-2000 Matthew Conte (matt@conte.com)
  **
  **
  ** This program is free software; you can redistribute it and/or
  ** modify it under the terms of version 2 of the GNU Library General 
  ** Public License as published by the Free Software Foundation.
  **
  ** 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 
  ** Library General Public License for more details.  To obtain a 
  ** copy of the GNU Library General Public License, write to the Free 
  ** Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  **
  ** Any permitted reproduction of these routines, in whole or in part,
  ** must bear this legend.
  **
  **
  ** map2.c
  **
  ** mapper 2 interface
  ** $Id: map002.c,v 1.2 2001/04/27 14:37:11 neil Exp $
  */
  
  #include <noftypes.h>
  #include <nes_mmc.h>
  
  /* mapper 2: UNROM */
  static void map2_write(uint32 address, uint8 value)
  {
     UNUSED(address);
  
     mmc_bankrom(16, 0x8000, value);
  }
  
  static map_memwrite map2_memwrite[] =
  {
     { 0x8000, 0xFFFF, map2_write },
     {     -1,     -1, NULL }
  };
  
  mapintf_t map2_intf =
  {
     2, /* mapper number */
     "UNROM", /* mapper name */
     NULL, /* init routine */
     NULL, /* vblank callback */
     NULL, /* hblank callback */
     NULL, /* get state (snss) */
     NULL, /* set state (snss) */
     NULL, /* memory read structure */
     map2_memwrite, /* memory write structure */
     NULL /* external sound device */
  };
  
  /*
  ** $Log: map002.c,v $
  ** Revision 1.2  2001/04/27 14:37:11  neil
  ** wheeee
  **
  ** Revision 1.1  2001/04/27 12:54:40  neil
  ** blah
  **
  ** Revision 1.1.1.1  2001/04/27 07:03:54  neil
  ** initial
  **
  ** Revision 1.1  2000/10/24 12:19:32  matt
  ** changed directory structure
  **
  ** Revision 1.5  2000/10/22 19:17:46  matt
  ** mapper cleanups galore
  **
  ** Revision 1.4  2000/10/21 19:33:38  matt
  ** many more cleanups
  **
  ** Revision 1.3  2000/08/16 02:50:11  matt
  ** random mapper cleanups
  **
  ** Revision 1.2  2000/07/06 02:48:43  matt
  ** clearly labelled structure members
  **
  ** Revision 1.1  2000/07/04 23:11:45  matt
  ** initial revision
  **
  */