152 lines
3.3 KiB
C++
152 lines
3.3 KiB
C++
/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2006 CaH4e3
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "mapinc.h"
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static uint16 latche, latcheinit;
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static uint16 addrreg0, addrreg1;
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static void(*WSync)(void);
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static readfunc defread;
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static DECLFW(LatchWrite)
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{
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// FCEU_printf("%04x:%02x\n",A,V);
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latche=A;
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WSync();
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}
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static void LatchPower(void)
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{
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latche=latcheinit;
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WSync();
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SetReadHandler(0x8000,0xFFFF,defread);
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SetWriteHandler(addrreg0,addrreg1,LatchWrite);
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}
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static void StateRestore(int version)
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{
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WSync();
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}
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static void Latch_Init(CartInfo *info, void (*proc)(void), readfunc func, uint16 init, uint16 adr0, uint16 adr1)
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{
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latcheinit=init;
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addrreg0=adr0;
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addrreg1=adr1;
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WSync=proc;
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if(func)
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defread=func;
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else
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defread=CartBR;
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info->Power=LatchPower;
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GameStateRestore=StateRestore;
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AddExState(&latche, 2, 0, "LATC");
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}
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//------------------ UNLCC21 ---------------------------
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static void UNLCC21Sync(void)
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{
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setprg32(0x8000,0);
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setchr8(latche&1);
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setmirror(MI_0+((latche&2)>>1));
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}
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void UNLCC21_Init(CartInfo *info)
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{
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Latch_Init(info, UNLCC21Sync, 0, 0, 0x8000, 0xFFFF);
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}
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//------------------ BMCD1038 ---------------------------
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static uint8 dipswitch;
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static void BMCD1038Sync(void)
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{
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if(latche&0x80)
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{
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setprg16(0x8000,(latche&0x70)>>4);
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setprg16(0xC000,(latche&0x70)>>4);
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}
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else
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setprg32(0x8000,(latche&0x60)>>5);
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setchr8(latche&7);
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setmirror(((latche&8)>>3)^1);
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}
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static DECLFR(BMCD1038Read)
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{
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if(latche&0x100)
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return dipswitch;
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else
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return CartBR(A);
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}
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static void BMCD1038Reset(void)
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{
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dipswitch++;
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dipswitch&=3;
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}
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void BMCD1038_Init(CartInfo *info)
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{
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Latch_Init(info, BMCD1038Sync, BMCD1038Read, 0, 0x8000, 0xFFFF);
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info->Reset=BMCD1038Reset;
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AddExState(&dipswitch, 1, 0, "DIPSW");
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}
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//------------------ Map 058 ---------------------------
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static void BMCGK192Sync(void)
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{
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if(latche&0x40)
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{
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setprg16(0x8000,latche&7);
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setprg16(0xC000,latche&7);
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}
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else
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setprg32(0x8000,(latche>>1)&3);
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setchr8((latche>>3)&7);
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setmirror(((latche&0x80)>>7)^1);
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}
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void BMCGK192_Init(CartInfo *info)
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{
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Latch_Init(info, BMCGK192Sync, 0, 0, 0x8000, 0xFFFF);
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}
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//------------------ Map 200 ---------------------------
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static void M200Sync(void)
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{
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// FCEU_printf("A\n");
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setprg16(0x8000,latche&7);
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setprg16(0xC000,latche&7);
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setchr8(latche&7);
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setmirror((latche&8)>>3);
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}
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void Mapper200_Init(CartInfo *info)
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{
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Latch_Init(info, M200Sync, 0, 0xff, 0x8000, 0xFFFF);
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}
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