map099.c
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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.
**
**
** map99.c
**
** mapper 99 interface
** $Id: map099.c,v 1.2 2001/04/27 14:37:11 neil Exp $
*/
#include <noftypes.h>
#include <nes_mmc.h>
#include <nes_ppu.h>
/* Switch VROM for VS games */
static void map99_vromswitch(uint8 value)
{
int bank = (value & 0x04) >> 2;
mmc_bankvrom(8, 0x0000, bank);
}
/* mapper 99: VS. System */
static void map99_init(void)
{
ppu_mirror(0, 1, 2, 3);
ppu_setvromswitch(map99_vromswitch);
}
mapintf_t map99_intf =
{
99, /* mapper number */
"VS. System", /* mapper name */
map99_init, /* init routine */
NULL, /* vblank callback */
NULL, /* hblank callback */
NULL, /* get state (snss) */
NULL, /* set state (snss) */
NULL, /* memory read structure */
NULL, /* memory write structure */
NULL /* external sound device */
};
/*
** $Log: map099.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 12:19:33 matt
** changed directory structure
**
** Revision 1.6 2000/10/22 19:17:47 matt
** mapper cleanups galore
**
** Revision 1.5 2000/10/21 19:33:38 matt
** many more cleanups
**
** Revision 1.4 2000/10/10 13:58:17 matt
** stroustrup squeezing his way in the door
**
** Revision 1.3 2000/07/10 05:29:03 matt
** cleaned up some mirroring issues
**
** Revision 1.2 2000/07/06 02:48:43 matt
** clearly labelled structure members
**
** Revision 1.1 2000/07/05 05:05:18 matt
** initial revision
**
*/