merge mapper code from FCEUX

[fceu.git] / boards / 603-5052.c

/* FCE Ultra - NES/Famicom Emulator\r
 *\r
 * Copyright notice for this file:\r
 *  Copyright (C) 2005 CaH4e3\r
 *\r
 * This program is free software; you can redistribute it and/or modify\r
 * it under the terms of the GNU General Public License as published by\r
 * the Free Software Foundation; either version 2 of the License, or\r
 * (at your option) any later version.\r
 *\r
 * This program is distributed in the hope that it will be useful,\r
 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
 * GNU General Public License for more details.\r
 *\r
 * You should have received a copy of the GNU General Public License\r
 * along with this program; if not, write to the Free Software\r
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA\r
 */\r
\r
#include "mapinc.h"\r
#include "mmc3.h"\r
\r
static uint8 lut[4] = { 0x00, 0x02, 0x02, 0x03 };\r
\r
static DECLFW(UNL6035052ProtWrite)\r
{\r
  EXPREGS[0]=lut[V&3];  \r
}\r
\r
static DECLFR(UNL6035052ProtRead)\r
{\r
  return EXPREGS[0];\r
}\r
\r
static void UNL6035052Power(void)\r
{\r
  GenMMC3Power();\r
  SetWriteHandler(0x4020,0x7FFF,UNL6035052ProtWrite);\r
  SetReadHandler(0x4020,0x7FFF,UNL6035052ProtRead);\r
}\r
\r
void UNL6035052_Init(CartInfo *info)\r
{\r
  GenMMC3_Init(info, 128, 256, 0, 0);\r
  info->Power=UNL6035052Power;\r
  AddExState(EXPREGS, 6, 0, "EXPR");\r
}\r