49 lines
1.4 KiB
C
49 lines
1.4 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) 2005 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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#include "mmc3.h"
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static void M189PW(uint32 A, uint8 V)
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{
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setprg32(0x8000,EXPREGS[0]&3);
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}
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static DECLFW(M189Write)
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{
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EXPREGS[0]=V|(V>>4); //actually, there is a two versions of 189 mapper with hi or lo bits bankswitching.
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FixMMC3PRG(MMC3_cmd);
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}
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static void M189Power(void)
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{
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EXPREGS[0]=EXPREGS[1]=0;
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GenMMC3Power();
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SetWriteHandler(0x4120,0x7FFF,M189Write);
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}
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void Mapper189_Init(CartInfo *info)
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{
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GenMMC3_Init(info, 256, 256, 0, 0);
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pwrap=M189PW;
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info->Power=M189Power;
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AddExState(EXPREGS, 2, 0, "EXPR");
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}
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