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98 lines
2.1 KiB
C++
98 lines
2.1 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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* 700in1 and 400in1 carts
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*/
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#include "mapinc.h"
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static uint16 cmd, bank;
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static SFORMAT StateRegs[]=
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{
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{&cmd, 2, "CMD"},
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{&bank, 2, "BANK"},
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{0}
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};
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static void Sync(void)
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{
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setmirror((cmd&1)^1);
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setchr8(0);
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if(cmd&2)
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{
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if(cmd&0x100)
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{
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setprg16(0x8000,((cmd&0xe0)>>2)|bank);
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setprg16(0xC000,((cmd&0xe0)>>2)|7);
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}
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else
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{
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setprg16(0x8000,((cmd&0xe0)>>2)|(bank&6));
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setprg16(0xC000,((cmd&0xe0)>>2)|((bank&6)|1));
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}
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}
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else
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{
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setprg16(0x8000,((cmd&0xe0)>>2)|bank);
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setprg16(0xC000,((cmd&0xe0)>>2)|bank);
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}
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}
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static DECLFW(UNLN625092WriteCommand)
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{
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cmd=A;
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Sync();
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}
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static DECLFW(UNLN625092WriteBank)
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{
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bank=A&7;
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Sync();
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}
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static void UNLN625092Power(void)
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{
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cmd=0;
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bank=0;
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Sync();
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SetReadHandler(0x8000,0xFFFF,CartBR);
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SetWriteHandler(0x8000,0xBFFF,UNLN625092WriteCommand);
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SetWriteHandler(0xC000,0xFFFF,UNLN625092WriteBank);
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}
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static void UNLN625092Reset(void)
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{
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cmd=0;
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bank=0;
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}
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static void StateRestore(int version)
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{
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Sync();
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}
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void UNLN625092_Init(CartInfo *info)
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{
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info->Reset=UNLN625092Reset;
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info->Power=UNLN625092Power;
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GameStateRestore=StateRestore;
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AddExState(&StateRegs, ~0, 0, 0);
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}
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