map231.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.
**
**
** map231.c
**
** mapper 231 interface
** $Id: map231.c,v 1.2 2001/04/27 14:37:11 neil Exp $
*/
#include <noftypes.h>
#include <nes_mmc.h>
/* mapper 231: NINA-07, used in Wally Bear and the NO! Gang */
static void map231_init(void)
{
mmc_bankrom(32, 0x8000, MMC_LASTBANK);
}
static void map231_write(uint32 address, uint8 value)
{
int bank, vbank;
UNUSED(address);
bank = ((value & 0x80) >> 5) | (value & 0x03);
vbank = (value >> 4) & 0x07;
mmc_bankrom(32, 0x8000, bank);
mmc_bankvrom(8, 0x0000, vbank);
}
static map_memwrite map231_memwrite[] =
{
{ 0x8000, 0xFFFF, map231_write },
{ -1, -1, NULL }
};
mapintf_t map231_intf =
{
231, /* mapper number */
"NINA-07", /* mapper name */
map231_init, /* init routine */
NULL, /* vblank callback */
NULL, /* hblank callback */
NULL, /* get state (snss) */
NULL, /* set state (snss) */
NULL, /* memory read structure */
map231_memwrite, /* memory write structure */
NULL /* external sound device */
};
/*
** $Log: map231.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 1.4 2000/10/22 19:17:46 matt
** mapper cleanups galore
**
** Revision 1.3 2000/10/21 19:33:38 matt
** many more cleanups
**
** Revision 1.2 2000/08/16 02:50:11 matt
** random mapper cleanups
**
** Revision 1.1 2000/07/11 03:14:18 melanson
** Initial commit for mappers 16, 34, and 231
**
**
*/