1  /*
 2  ** Nofrendo (c) 1998-2000 Matthew Conte (matt@conte.com)
 3  **
 4  **
 5  ** This program is free software; you can redistribute it and/or
 6  ** modify it under the terms of version 2 of the GNU Library General 
 7  ** Public License as published by the Free Software Foundation.
 8  **
 9  ** This program is distributed in the hope that it will be useful, 
10  ** but WITHOUT ANY WARRANTY; without even the implied warranty of
11  ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
12  ** Library General Public License for more details.  To obtain a 
13  ** copy of the GNU Library General Public License, write to the Free 
14  ** Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
15  **
16  ** Any permitted reproduction of these routines, in whole or in part,
17  ** must bear this legend.
18  **
19  **
20  ** map2.c
21  **
22  ** mapper 2 interface
23  ** $Id: map002.c,v 1.2 2001/04/27 14:37:11 neil Exp $
24  */
25  
26  #include "noftypes.h"
27  #include "nes_mmc.h"
28  
29  /* mapper 2: UNROM */
30  static void map2_write(uint32 address, uint8 value)
31  {
32     UNUSED(address);
33  
34     mmc_bankrom(16, 0x8000, value);
35  }
36  
37  static const map_memwrite map2_memwrite[] =
38  {
39     { 0x8000, 0xFFFF, map2_write },
40     {     -1,     -1, NULL }
41  };
42  
43  const mapintf_t map2_intf =
44  {
45     2, /* mapper number */
46     "UNROM", /* mapper name */
47     NULL, /* init routine */
48     NULL, /* vblank callback */
49     NULL, /* hblank callback */
50     NULL, /* get state (snss) */
51     NULL, /* set state (snss) */
52     NULL, /* memory read structure */
53     map2_memwrite, /* memory write structure */
54     NULL /* external sound device */
55  };
56  
57  /*
58  ** $Log: map002.c,v $
59  ** Revision 1.2  2001/04/27 14:37:11  neil
60  ** wheeee
61  **
62  ** Revision 1.1  2001/04/27 12:54:40  neil
63  ** blah
64  **
65  ** Revision 1.1.1.1  2001/04/27 07:03:54  neil
66  ** initial
67  **
68  ** Revision 1.1  2000/10/24 12:19:32  matt
69  ** changed directory structure
70  **
71  ** Revision 1.5  2000/10/22 19:17:46  matt
72  ** mapper cleanups galore
73  **
74  ** Revision 1.4  2000/10/21 19:33:38  matt
75  ** many more cleanups
76  **
77  ** Revision 1.3  2000/08/16 02:50:11  matt
78  ** random mapper cleanups
79  **
80  ** Revision 1.2  2000/07/06 02:48:43  matt
81  ** clearly labelled structure members
82  **
83  ** Revision 1.1  2000/07/04 23:11:45  matt
84  ** initial revision
85  **
86  */