compat hacks for this old version of fceu

[fceu.git] / boards / bandai.c

/* FCE Ultra - NES/Famicom Emulator\r
 *\r
 * Copyright notice for this file:\r
 *  Copyright (C) 2007 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
 * Bandai mappers\r
 *\r
 */\r
\r
#include "mapinc.h"\r
\r
static uint8 reg[16], is153;\r
static uint8 IRQa;\r
static int16 IRQCount, IRQLatch;\r
\r
static uint8 *WRAM=NULL;\r
static uint32 WRAMSIZE;\r
\r
static SFORMAT StateRegs[]=\r
{\r
  {reg, 16, "REGS"},\r
  {&IRQa, 1, "IRQA"},\r
  {&IRQCount, 2, "IRQC"},\r
  {&IRQLatch, 2, "IRQL"}, // need for Famicom Jump II - Saikyou no 7 Nin (J) [!]\r
  {0}\r
};\r
\r
static void FP_FASTAPASS(1) BandaiIRQHook(int a)\r
{\r
  if(IRQa)\r
  {\r
    IRQCount-=a;\r
    if(IRQCount<0)\r
    {\r
      X6502_IRQBegin(FCEU_IQEXT);\r
      IRQa=0;\r
      IRQCount=0xFFFF;\r
    }\r
  }\r
}\r
\r
static void BandaiSync(void)\r
{\r
  if(!UNIFchrrama)\r
  {\r
    int i;\r
    for(i=0; i<8; i++) setchr1(i<<10,reg[i]);\r
  }\r
  else\r
    setchr8(0);\r
  if(is153)\r
  {\r
    int base=(reg[0]&1)<<4;\r
    setprg16(0x8000,(reg[8]&0x0F)|base);\r
    setprg16(0xC000,0x0F|base);\r
  }\r
  else\r
  {\r
    setprg16(0x8000,reg[8]);\r
    setprg16(0xC000,~0);\r
  }\r
  switch(reg[9]&3)\r
  {\r
    case 0: setmirror(MI_V); break;\r
    case 1: setmirror(MI_H); break;\r
    case 2: setmirror(MI_0); break;\r
    case 3: setmirror(MI_1); break;\r
  }\r
}\r
\r
static DECLFW(BandaiWrite)\r
{\r
  A&=0x0F;\r
  if(A<0x0A)\r
  {\r
    reg[A&0x0F]=V;\r
    BandaiSync();\r
  }\r
  else\r
    switch(A)\r
    {\r
      case 0x0A: X6502_IRQEnd(FCEU_IQEXT); IRQa=V&1; IRQCount=IRQLatch; break;\r
      case 0x0B: IRQLatch&=0xFF00; IRQLatch|=V; break;\r
      case 0x0C: IRQLatch&=0xFF; IRQLatch|=V<<8; break;\r
      case 0x0D: break;// Serial EEPROM control port\r
    }\r
}\r
\r
static void BandaiPower(void)\r
{\r
  BandaiSync();\r
  SetReadHandler(0x8000,0xFFFF,CartBR);\r
  SetWriteHandler(0x6000,0xFFFF,BandaiWrite);\r
}\r
\r
static void StateRestore(int version)\r
{\r
  BandaiSync();\r
}\r
\r
void Mapper16_Init(CartInfo *info)\r
{\r
  is153=0;\r
  info->Power=BandaiPower;\r
  MapIRQHook=BandaiIRQHook;\r
  GameStateRestore=StateRestore;\r
  AddExState(&StateRegs, ~0, 0, 0);\r
}\r
\r
// Famicom jump 2:\r
// 0-7: Lower bit of data selects which 256KB PRG block is in use.\r
// This seems to be a hack on the developers' part, so I'll make emulation\r
// of it a hack(I think the current PRG block would depend on whatever the\r
// lowest bit of the CHR bank switching register that corresponds to the\r
// last CHR address read).\r
\r
static void M153Power(void)\r
{\r
  BandaiSync();\r
  setprg8r(0x10,0x6000,0);\r
  SetReadHandler(0x6000,0x7FFF,CartBR);\r
  SetWriteHandler(0x6000,0x7FFF,CartBW);\r
  SetReadHandler(0x8000,0xFFFF,CartBR);\r
  SetWriteHandler(0x8000,0xFFFF,BandaiWrite);\r
}\r
\r
\r
static void M153Close(void)\r
{\r
  if(WRAM)\r
    FCEU_gfree(WRAM);\r
  WRAM=NULL;\r
}\r
\r
void Mapper153_Init(CartInfo *info)\r
{\r
  is153=1;\r
  info->Power=M153Power;\r
  info->Close=M153Close;\r
  MapIRQHook=BandaiIRQHook;\r
\r
  WRAMSIZE=8192;\r
  WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);\r
  SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);\r
  AddExState(WRAM, WRAMSIZE, 0, "WRAM");\r
\r
  if(info->battery)\r
  {\r
    info->SaveGame[0]=WRAM;\r
    info->SaveGameLen[0]=WRAMSIZE;\r
  }\r
\r
  GameStateRestore=StateRestore;\r
  AddExState(&StateRegs, ~0, 0, 0);\r
}\r
\r
// Datach Barcode Battler\r
\r
static uint8 BarcodeData[256];\r
static int BarcodeReadPos;\r
static int BarcodeCycleCount;\r
static uint32 BarcodeOut;\r
\r
int FCEUI_DatachSet(const uint8 *rcode)\r
{\r
  int prefix_parity_type[10][6] = {\r
    {0,0,0,0,0,0}, {0,0,1,0,1,1}, {0,0,1,1,0,1}, {0,0,1,1,1,0},\r
    {0,1,0,0,1,1}, {0,1,1,0,0,1}, {0,1,1,1,0,0}, {0,1,0,1,0,1},\r
    {0,1,0,1,1,0}, {0,1,1,0,1,0}\r
  };\r
  int data_left_odd[10][7] = {\r
    {0,0,0,1,1,0,1}, {0,0,1,1,0,0,1}, {0,0,1,0,0,1,1}, {0,1,1,1,1,0,1},\r
    {0,1,0,0,0,1,1}, {0,1,1,0,0,0,1}, {0,1,0,1,1,1,1}, {0,1,1,1,0,1,1},\r
    {0,1,1,0,1,1,1}, {0,0,0,1,0,1,1}\r
  };\r
  int  data_left_even[10][7] = {\r
    {0,1,0,0,1,1,1}, {0,1,1,0,0,1,1}, {0,0,1,1,0,1,1}, {0,1,0,0,0,0,1},\r
    {0,0,1,1,1,0,1}, {0,1,1,1,0,0,1}, {0,0,0,0,1,0,1}, {0,0,1,0,0,0,1},\r
    {0,0,0,1,0,0,1}, {0,0,1,0,1,1,1}\r
  };\r
  int  data_right[10][7] = {\r
    {1,1,1,0,0,1,0}, {1,1,0,0,1,1,0}, {1,1,0,1,1,0,0}, {1,0,0,0,0,1,0},\r
    {1,0,1,1,1,0,0}, {1,0,0,1,1,1,0}, {1,0,1,0,0,0,0}, {1,0,0,0,1,0,0},\r
    {1,0,0,1,0,0,0}, {1,1,1,0,1,0,0}\r
  };\r
  uint8 code[13+1];\r
  uint32 tmp_p=0;\r
  int i, j;\r
  int len;\r
\r
  for(i=len=0;i<13;i++)\r
  {\r
    if(!rcode[i]) break;\r
    if((code[i]=rcode[i]-'0') > 9)\r
      return(0);\r
    len++;\r
  }\r
  if(len!=13 && len!=12 && len!=8 && len!=7) return(0);\r
\r
  #define BS(x) BarcodeData[tmp_p]=x;tmp_p++\r
\r
  for(j=0;j<32;j++)\r
  {\r
    BS(0x00);\r
  }\r
\r
  /* Left guard bars */\r
  BS(1);    BS(0); BS(1);\r
\r
  if(len==13 || len==12)\r
  {\r
    uint32 csum;\r
\r
    for(i=0;i<6;i++)\r
      if(prefix_parity_type[code[0]][i])\r
      {\r
        for(j=0;j<7;j++)\r
        {\r
          BS(data_left_even[code[i+1]][j]);\r
        }\r
      }\r
      else\r
        for(j=0;j<7;j++)\r
        {\r
          BS(data_left_odd[code[i+1]][j]);\r
        }\r
\r
    /* Center guard bars */\r
    BS(0); BS(1); BS(0); BS(1); BS(0);\r
\r
    for(i=7;i<12;i++)\r
      for(j=0;j<7;j++)\r
      {\r
        BS(data_right[code[i]][j]);\r
      }\r
    csum=0;\r
    for(i=0;i<12;i++) csum+=code[i]*((i&1)?3:1);\r
      csum=(10-(csum%10))%10;\r
    for(j=0;j<7;j++)\r
    {\r
      BS(data_right[csum][j]);\r
    }\r
\r
  }\r
  else if(len==8 || len==7)\r
  {\r
    uint32 csum=0;\r
\r
    for(i=0;i<7;i++) csum+=(i&1)?code[i]:(code[i]*3);\r
\r
    csum=(10-(csum%10))%10;\r
\r
    for(i=0;i<4;i++)\r
      for(j=0;j<7;j++)\r
      {\r
        BS(data_left_odd[code[i]][j]);\r
      }\r
\r
\r
    /* Center guard bars */\r
    BS(0); BS(1); BS(0); BS(1); BS(0);\r
\r
    for(i=4;i<7;i++)\r
      for(j=0;j<7;j++)\r
      {\r
        BS(data_right[code[i]][j]);\r
      }\r
\r
    for(j=0;j<7;j++)\r
      { BS(data_right[csum][j]);}\r
\r
  }\r
\r
  /* Right guard bars */\r
  BS(1); BS(0); BS(1);\r
\r
  for(j=0;j<32;j++)\r
  {\r
    BS(0x00);\r
  }\r
\r
  BS(0xFF);\r
\r
  #undef BS\r
\r
  BarcodeReadPos=0;\r
  BarcodeOut=0x8;\r
  BarcodeCycleCount=0;\r
  return(1);\r
}\r
\r
static void FP_FASTAPASS(1) BarcodeIRQHook(int a)\r
{\r
 BandaiIRQHook(a);\r
\r
 BarcodeCycleCount+=a;\r
\r
 if(BarcodeCycleCount >= 1000)\r
 {\r
  BarcodeCycleCount -= 1000;\r
  if(BarcodeData[BarcodeReadPos]==0xFF)\r
  {\r
   BarcodeOut=0;\r
  }\r
  else\r
  {\r
   BarcodeOut=(BarcodeData[BarcodeReadPos]^1)<<3;\r
   BarcodeReadPos++;\r
  }\r
 }\r
}\r
\r
static DECLFR(BarcodeRead)\r
{\r
  return BarcodeOut;\r
}\r
\r
static void M157Power(void)\r
{\r
  BarcodeData[0]=0xFF;\r
  BarcodeReadPos=0;\r
  BarcodeOut=0;\r
  BarcodeCycleCount=0;\r
\r
  BandaiSync();\r
\r
  SetWriteHandler(0x6000,0xFFFF,BandaiWrite);\r
  SetReadHandler(0x6000,0x7FFF,BarcodeRead);\r
  SetReadHandler(0x8000,0xFFFF,CartBR);\r
}\r
\r
void Mapper157_Init(CartInfo *info)\r
{\r
  is153=0;\r
  info->Power=M157Power;\r
  MapIRQHook=BarcodeIRQHook;\r
\r
  GameInfo->cspecial = SIS_DATACH;\r
\r
  GameStateRestore=StateRestore;\r
  AddExState(&StateRegs, ~0, 0, 0);\r
}\r