random warning fixes

[fceu.git] / boards / t-227-1.c

/* FCE Ultra - NES/Famicom Emulator\r
 *\r
 * Copyright notice for this file:\r
 *  Copyright (C) 2008 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
\r
// T-227-1, 820632, MMC3 based, multimenu, 60000in1 (0010) dip switches\r
\r
#include "mapinc.h"\r
#include "mmc3.h"\r
\r
static uint8 reset_flag = 0x07;\r
\r
static void BMCT2271CW(uint32 A, uint8 V)\r
{\r
    uint32 va = V; \r
    if(EXPREGS[0]&0x20)\r
    {\r
      va|=0x200;\r
      va|=(EXPREGS[0]&0x10)<<4;\r
    }\r
    else\r
    {\r
      va&=0x7F;\r
      va|=(EXPREGS[0]&0x18)<<4;\r
    }\r
    setchr1(A,va);\r
}\r
\r
static void BMCT2271PW(uint32 A, uint8 V)\r
{\r
    uint32 va = V & 0x3F; \r
    if(EXPREGS[0]&0x20)\r
    {\r
       va&=0x1F;\r
       va|=0x40;\r
       va|=(EXPREGS[0]&0x10)<<1;\r
    }\r
    else\r
    {\r
       va&=0x0F;\r
       va|=(EXPREGS[0]&0x18)<<1;\r
    }\r
    switch(EXPREGS[0]&3)\r
    {\r
      case 0x00: setprg8(A,va); break;\r
      case 0x02: \r
           {\r
             va=(va&0xFD)|((EXPREGS[0]&4)>>1);\r
             if(A<0xC000)\r
             {\r
               setprg16(0x8000,va >> 1); \r
               setprg16(0xC000,va >> 1); \r
             }\r
             break;\r
           }\r
      case 0x01: \r
      case 0x03: if(A<0xC000) setprg32(0x8000,va >> 2); break;\r
    }\r
\r
}\r
       \r
static DECLFW(BMCT2271LoWrite)\r
{\r
  if(!(EXPREGS[0]&0x80))\r
    EXPREGS[0] = A & 0xFF;\r
  FixMMC3PRG(MMC3_cmd);\r
  FixMMC3CHR(MMC3_cmd);\r
}\r
\r
static DECLFR(BMCT2271HiRead)\r
{\r
  uint32 av = A;\r
  if(EXPREGS[0]&0x40) av = (av & 0xFFF0)|reset_flag;\r
  return CartBR(av);\r
}\r
\r
static void BMCT2271Reset(void)\r
{\r
  EXPREGS[0] = 0x00;\r
  reset_flag++;\r
  reset_flag&=0x0F;\r
  MMC3RegReset();\r
}\r
\r
static void BMCT2271Power(void)\r
{\r
  EXPREGS[0] = 0x00;\r
  GenMMC3Power();\r
  SetWriteHandler(0x6000,0x7FFF,BMCT2271LoWrite);\r
  SetReadHandler(0x8000,0xFFFF,BMCT2271HiRead);\r
}\r
\r
void BMCT2271_Init(CartInfo *info)\r
{\r
  GenMMC3_Init(info, 128, 128, 8, 0);\r
  pwrap=BMCT2271PW;\r
  cwrap=BMCT2271CW;\r
  info->Power=BMCT2271Power;\r
  info->Reset=BMCT2271Reset;\r
  AddExState(EXPREGS, 1, 0, "EXPR");\r
}\r