/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 2013 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "mapinc.h"

static uint8 reg[8];
static uint8 IRQa;
static int16 IRQCount, IRQLatch;
/*
static uint8 *WRAM = NULL;
static uint32 WRAMSIZE;
static uint8 *CHRRAM = NULL;
static uint32 CHRRAMSIZE;
*/

static SFORMAT StateRegs[] =
{
	{ reg, 8, "REGS" },
	{ &IRQa, 1, "IRQA" },
	{ &IRQCount, 2, "IRQC" },
	{ &IRQLatch, 2, "IRQL" },
	{ 0 }
};

static void Sync(void) {
}

static DECLFW(MNNNWrite) {
}

static void MNNNPower(void) {
/*	SetReadHandler(0x6000, 0x7fff, CartBR); */
/*	SetWriteHandler(0x6000, 0x7fff, CartBW); */
	SetReadHandler(0x8000, 0xFFFF, CartBR);
	SetWriteHandler(0x8000, 0xFFFF, MNNNWrite);
}

static void MNNNReset(void) {
}

/*
static void MNNNClose(void) {
	if (WRAM)
		FCEU_gfree(WRAM);
	if (CHRRAM)
		FCEU_gfree(CHRRAM);
	WRAM = CHRRAM = NULL;
}
*/

static void MNNNIRQHook(void) {
	X6502_IRQBegin(FCEU_IQEXT);
}

static void StateRestore(int version) {
	Sync();
}

void MapperNNN_Init(CartInfo *info) {
	info->Reset = MNNNReset;
	info->Power = MNNNPower;
/*	info->Close = MNNNClose; */
	GameHBIRQHook = MNNNIRQHook;
	GameStateRestore = StateRestore;
#if 0
	CHRRAMSIZE = 8192;
	CHRRAM = (uint8*)FCEU_gmalloc(CHRRAMSIZE);
	SetupCartCHRMapping(0x10, CHRRAM, CHRRAMSIZE, 1);
	AddExState(CHRRAM, CHRRAMSIZE, 0, "CRAM");

	WRAMSIZE = 8192;
	WRAM = (uint8*)FCEU_gmalloc(WRAMSIZE);
	SetupCartPRGMapping(0x10, WRAM, WRAMSIZE, 1);
	AddExState(WRAM, WRAMSIZE, 0, "WRAM");
	if (info->battery) {
		info->SaveGame[0] = WRAM;
		info->SaveGameLen[0] = WRAMSIZE;
	}
#endif
	AddExState(&StateRegs, ~0, 0, 0);
}
