/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 2022
 *
 * 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"
#include "mmc3.h"

static void M364CW(uint32 A, uint8 V) {
	V &= (EXPREGS[0] & 0x20) ? 0x7F : 0xFF;
	setchr1(A, V | ((EXPREGS[0] << 4) & 0x100));
}

static void M364PW(uint32 A, uint8 V) {
	V &= (EXPREGS[0] & 0x20) ? 0x0F : 0x1F;
	setprg8(A, V | ((EXPREGS[0] >> 1) & 0x20));
}

static DECLFW(M364Write) {
	EXPREGS[0] = V;
	FixMMC3PRG(MMC3_cmd);
	FixMMC3CHR(MMC3_cmd);
}

static void M364Power(void) {
	EXPREGS[0] = 0;
	GenMMC3Power();
	SetWriteHandler(0x7000, 0x7FFF, M364Write);
}

static void M364Reset(void) {
	EXPREGS[0] = 0;
	MMC3RegReset();
}

void Mapper364_Init(CartInfo *info) {
	GenMMC3_Init(info, 512, 512, 8, 0);
	pwrap = M364PW;
	cwrap = M364CW;
	info->Power = M364Power;
	AddExState(EXPREGS, 1, 0, "EXPR");
}