merge mapper code from FCEUX

[fceu.git] / boards / 208.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[256]={\r
  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x59, 0x49, 0x19, 0x09, 0x59, 0x49, 0x19, 0x09,\r
  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x51, 0x41, 0x11, 0x01, 0x51, 0x41, 0x11, 0x01,\r
  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x59, 0x49, 0x19, 0x09, 0x59, 0x49, 0x19, 0x09,\r
  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x51, 0x41, 0x11, 0x01, 0x51, 0x41, 0x11, 0x01,\r
  0x00, 0x10, 0x40, 0x50, 0x00, 0x10, 0x40, 0x50,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
  0x08, 0x18, 0x48, 0x58, 0x08, 0x18, 0x48, 0x58,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
  0x00, 0x10, 0x40, 0x50, 0x00, 0x10, 0x40, 0x50,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
  0x08, 0x18, 0x48, 0x58, 0x08, 0x18, 0x48, 0x58,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x58, 0x48, 0x18, 0x08, 0x58, 0x48, 0x18, 0x08,\r
  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x50, 0x40, 0x10, 0x00, 0x50, 0x40, 0x10, 0x00,\r
  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x58, 0x48, 0x18, 0x08, 0x58, 0x48, 0x18, 0x08,\r
  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x50, 0x40, 0x10, 0x00, 0x50, 0x40, 0x10, 0x00,\r
  0x01, 0x11, 0x41, 0x51, 0x01, 0x11, 0x41, 0x51,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
  0x09, 0x19, 0x49, 0x59, 0x09, 0x19, 0x49, 0x59,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
  0x01, 0x11, 0x41, 0x51, 0x01, 0x11, 0x41, 0x51,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\r
  0x09, 0x19, 0x49, 0x59, 0x09, 0x19, 0x49, 0x59,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00\r
};\r
\r
static void M208PW(uint32 A, uint8 V)\r
{\r
  setprg32(0x8000,EXPREGS[5]);\r
}\r
\r
static DECLFW(M208Write)\r
{\r
  EXPREGS[5]=(V&0x1)|((V>>3)&0x2);\r
  FixMMC3PRG(MMC3_cmd);\r
}\r
\r
static DECLFW(M208ProtWrite)\r
{\r
  if(A<=0x57FF)\r
    EXPREGS[4]=V;\r
  else\r
    EXPREGS[(A&0x03)]=V^lut[EXPREGS[4]];\r
}\r
\r
static DECLFR(M208ProtRead)\r
{\r
  return(EXPREGS[(A&0x3)]);\r
}\r
\r
static void M208Power(void)\r
{\r
  EXPREGS[5]=3;\r
  GenMMC3Power();\r
  SetWriteHandler(0x4800,0x4FFF,M208Write);\r
  SetWriteHandler(0x5000,0x5fff,M208ProtWrite);\r
  SetReadHandler(0x5800,0x5FFF,M208ProtRead);\r
  SetReadHandler(0x8000,0xffff,CartBR);\r
}\r
\r
void Mapper208_Init(CartInfo *info)\r
{\r
  GenMMC3_Init(info, 128, 256, 0, 0);\r
  pwrap=M208PW;\r
  info->Power=M208Power;\r
  AddExState(EXPREGS, 6, 0, "EXPR");\r
}\r