merge mapper code from FCEUX

[fceu.git] / boards / a9711.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 m_perm[8] = {0, 1, 0, 3, 0, 5, 6, 7};\r
\r
static void UNLA9711PW(uint32 A, uint8 V)\r
{\r
  if((EXPREGS[0]&0xFF) == 0x37)\r
  {\r
    setprg8(0x8000, 0x13);\r
    setprg8(0xA000, 0x13);\r
    setprg8(0xC000, 0x13);\r
    setprg8(0xE000, 0x0);\r
//    uint8 bank=EXPREGS[0]&0x1F;\r
//   if(EXPREGS[0]&0x20)\r
//      setprg32(0x8000,bank>>2);\r
//    else\r
//    {\r
//      setprg16(0x8000,bank);\r
//      setprg16(0xC000,bank);\r
//    }\r
  }\r
  else\r
    setprg8(A,V&0x3F);\r
}\r
\r
//static DECLFW(UNLA9711Write8000)\r
//{\r
//  FCEU_printf("bs %04x %02x\n",A,V);\r
//  if(V&0x80)\r
//    MMC3_CMDWrite(A,V);\r
//  else\r
//    MMC3_CMDWrite(A,m_perm[V&7]);\r
//  if(V!=0x86) MMC3_CMDWrite(A,V);\r
//}\r
\r
static DECLFW(UNLA9711WriteLo)\r
{\r
  FCEU_printf("bs %04x %02x\n",A,V);\r
  EXPREGS[0]=V;\r
  FixMMC3PRG(MMC3_cmd);\r
}\r
\r
static void UNLA9711Power(void)\r
{\r
  EXPREGS[0]=EXPREGS[1]=EXPREGS[2]=0;\r
  GenMMC3Power();\r
  SetWriteHandler(0x5000,0x5FFF,UNLA9711WriteLo);\r
//  SetWriteHandler(0x8000,0xbfff,UNLA9711Write8000);\r
}\r
\r
void UNLA9711_Init(CartInfo *info)\r
{\r
  GenMMC3_Init(info, 256, 256, 0, 0);\r
  pwrap=UNLA9711PW;\r
  info->Power=UNLA9711Power;\r
  AddExState(EXPREGS, 3, 0, "EXPR");\r
}\r