fceux/mappers/46.cpp

49 lines
1.3 KiB
C++

/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
* Copyright (C) 2002 Xodnizel
*
* 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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "mapinc.h"
#define A64reg mapbyte1[0]
#define A64wr mapbyte1[1]
DECLFW(Mapper46_writel)
{
A64reg=V;
ROM_BANK32((A64wr&1)+((A64reg&0xF)<<1));
VROM_BANK8(((A64wr>>4)&7)+((A64reg&0xF0)>>1));
}
DECLFW(Mapper46_write)
{
A64wr=V;
ROM_BANK32((V&1)+((A64reg&0xF)<<1));
VROM_BANK8(((V>>4)&7)+((A64reg&0xF0)>>1));
}
void Mapper46_init(void)
{
MIRROR_SET(0);
ROM_BANK32(0);
SetWriteHandler(0x8000,0xffff,Mapper46_write);
SetWriteHandler(0x6000,0x7fff,Mapper46_writel);
}