random warning fixes

[fceu.git] / boards / 12in1.c

/* FCE Ultra - NES/Famicom Emulator\r
 *\r
 * Copyright notice for this file:\r
 *  Copyright (C) 2009 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
 *\r
 * 7-in-1 Darkwing Duck, Snake, MagicBlock (PCB marked as "12 in 1")\r
 */\r
\r
#include "mapinc.h"\r
\r
static uint8 reg[4];\r
static SFORMAT StateRegs[]=\r
{\r
  {reg, 4, "REGS"},\r
  {0}\r
};\r
\r
static void Sync(void)\r
{\r
    uint8 bank = (reg[3]&3)<<3;\r
    setchr4(0x0000, (reg[1]>>3)|(bank<<2));\r
    setchr4(0x1000, (reg[2]>>3)|(bank<<2));\r
    if(reg[3]&8)\r
    {\r
      setprg32(0x8000,((reg[2]&7)>>1)|bank);\r
    }\r
    else\r
    {\r
      setprg16(0x8000, (reg[1]&7)|bank);\r
      setprg16(0xc000, 7|bank);\r
    }\r
    setmirror(((reg[3]&4)>>2)^1);\r
}\r
\r
static DECLFW(BMC12IN1Write)\r
{\r
  switch(A)\r
  {\r
  case 0xafff: reg[0] = V; break;\r
  case 0xbfff: reg[1] = V; break;\r
  case 0xdfff: reg[2] = V; break;\r
  case 0xefff: reg[3] = V; break;\r
  }\r
  Sync();\r
}\r
\r
static void BMC12IN1Power(void)\r
{\r
  reg[0]=reg[1]=reg[2]=reg[3]=0;\r
  Sync();\r
  SetReadHandler(0x8000,0xFFFF,CartBR);\r
  SetWriteHandler(0x8000,0xFFFF,BMC12IN1Write);\r
}\r
\r
static void StateRestore(int version)\r
{\r
  Sync();\r
}\r
\r
void BMC12IN1_Init(CartInfo *info)\r
{\r
  info->Power=BMC12IN1Power;\r
  GameStateRestore=StateRestore;\r
  AddExState(&StateRegs, ~0, 0, 0);\r
}\r