fceugx/source/fceultra/boards/120.cpp
2009-07-17 17:27:04 +00:00

67 lines
1.5 KiB
C++

/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
* Copyright (C) 2007 CaH4e3
*
* 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"
static uint8 reg;
static SFORMAT StateRegs[]=
{
{&reg, 1, "REG"},
{0}
};
static void Sync(void)
{
setprg8(0x6000,reg);
setprg32(0x8000,2);
setchr8(0);
}
static DECLFW(M120Write)
{
if(A==0x41FF)
{
reg=V&7;
Sync();
}
}
static void M120Power(void)
{
reg=0;
Sync();
SetReadHandler(0x6000,0x7FFF,CartBR);
SetReadHandler(0x8000,0xFFFF,CartBR);
SetWriteHandler(0x4100,0x5FFF,M120Write);
}
static void StateRestore(int version)
{
Sync();
}
void Mapper120_Init(CartInfo *info)
{
info->Power=M120Power;
GameStateRestore=StateRestore;
AddExState(&StateRegs, ~0, 0, 0);
}