merge mapper code from FCEUX

[fceu.git] / boards / addrlatch.c

/* FCE Ultra - NES/Famicom Emulator\r
 *\r
 * Copyright notice for this file:\r
 *  Copyright (C) 2006 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
\r
static uint16 latche, latcheinit;\r
static uint16 addrreg0, addrreg1;\r
static void(*WSync)(void);\r
static readfunc defread;\r
\r
static DECLFW(LatchWrite)\r
{\r
  FCEU_printf("%04x:%02x\n",A,V);\r
  latche=A;\r
  WSync();\r
}\r
\r
static void LatchReset(void)\r
{\r
  latche=latcheinit;\r
  WSync();\r
}\r
\r
static void LatchPower(void)\r
{\r
  latche=latcheinit;\r
  WSync();\r
  SetReadHandler(0x8000,0xFFFF,defread);\r
  SetWriteHandler(addrreg0,addrreg1,LatchWrite);\r
}\r
\r
static void StateRestore(int version)\r
{\r
  WSync();\r
}\r
\r
static void Latch_Init(CartInfo *info, void (*proc)(void), readfunc func, uint16 init, uint16 adr0, uint16 adr1)\r
{\r
  latcheinit=init;\r
  addrreg0=adr0;\r
  addrreg1=adr1;\r
  WSync=proc;\r
  if(func)\r
    defread=func;\r
  else\r
    defread=CartBR;\r
  info->Power=LatchPower;\r
  info->Reset=LatchReset;\r
  GameStateRestore=StateRestore;\r
  AddExState(&latche, 2, 0, "LATC");\r
}\r
\r
//------------------ UNLCC21 ---------------------------\r
\r
static void UNLCC21Sync(void)\r
{\r
  setprg32(0x8000,0);\r
  setchr8(latche&1);\r
  setmirror(MI_0+((latche&2)>>1));\r
}\r
\r
void UNLCC21_Init(CartInfo *info)\r
{ \r
  Latch_Init(info, UNLCC21Sync, 0, 0, 0x8000, 0xFFFF);\r
}\r
\r
//------------------ BMCD1038 ---------------------------\r
\r
static uint8 dipswitch;\r
static void BMCD1038Sync(void)\r
{\r
  if(latche&0x80)\r
  {\r
    setprg16(0x8000,(latche&0x70)>>4);\r
    setprg16(0xC000,(latche&0x70)>>4);\r
  }\r
  else\r
    setprg32(0x8000,(latche&0x60)>>5);\r
  setchr8(latche&7);\r
  setmirror(((latche&8)>>3)^1);\r
}\r
\r
static DECLFR(BMCD1038Read)\r
{\r
  if(latche&0x100)\r
    return dipswitch;\r
  else\r
    return CartBR(A);\r
}\r
\r
static void BMCD1038Reset(void)\r
{\r
  dipswitch++;\r
  dipswitch&=3; \r
}\r
\r
void BMCD1038_Init(CartInfo *info)\r
{ \r
  Latch_Init(info, BMCD1038Sync, BMCD1038Read, 0, 0x8000, 0xFFFF);\r
  info->Reset=BMCD1038Reset;\r
  AddExState(&dipswitch, 1, 0, "DIPSW");\r
}\r
\r
\r
//------------------ Map 058 ---------------------------\r
\r
static void BMCGK192Sync(void)\r
{\r
  if(latche&0x40)\r
  {\r
    setprg16(0x8000,latche&7);\r
    setprg16(0xC000,latche&7);\r
  }\r
  else\r
    setprg32(0x8000,(latche>>1)&3);\r
  setchr8((latche>>3)&7);\r
  setmirror(((latche&0x80)>>7)^1);\r
}\r
\r
void BMCGK192_Init(CartInfo *info)\r
{\r
  Latch_Init(info, BMCGK192Sync, 0, 0, 0x8000, 0xFFFF);\r
}\r
\r
//------------------ Map 200 ---------------------------\r
\r
static void M200Sync(void)\r
{\r
//  FCEU_printf("A\n");\r
  setprg16(0x8000,latche&7);\r
  setprg16(0xC000,latche&7);\r
  setchr8(latche&7);\r
  setmirror((latche&8)>>3);\r
}\r
\r
void Mapper200_Init(CartInfo *info)\r
{ \r
  Latch_Init(info, M200Sync, 0, 0xff, 0x8000, 0xFFFF);\r
}\r
\r
//------------------ 190in1 ---------------------------\r
\r
static void BMC190in1Sync(void)\r
{\r
  setprg16(0x8000,(latche>>2)&0x07);\r
  setprg16(0xC000,(latche>>2)&0x07);\r
  setchr8((latche>>2)&0x07);\r
  setmirror((latche&1)^1);\r
}\r
\r
void BMC190in1_Init(CartInfo *info)\r
{ \r
  Latch_Init(info, BMC190in1Sync, 0, 0, 0x8000, 0xFFFF);\r
}\r
\r