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https://github.com/dborth/fceugx.git
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56 lines
1.6 KiB
C
56 lines
1.6 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) 2002 Xodnizel
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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 DECLFW(Mapper76_write)
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{
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switch(A&0xE001){
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case 0x8000:
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MMC3_cmd = V;
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break;
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case 0x8001:
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switch(MMC3_cmd&0x07){
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case 2: VROM_BANK2(0x000,V);break;
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case 3: VROM_BANK2(0x800,V);break;
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case 4: VROM_BANK2(0x1000,V);break;
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case 5: VROM_BANK2(0x1800,V);break;
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case 6:
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if (MMC3_cmd&0x40) ROM_BANK8(0xC000,V);
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else ROM_BANK8(0x8000,V);
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break;
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case 7: ROM_BANK8(0xA000,V);
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break;
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}
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break;
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case 0xA000:
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MIRROR_SET(V&1);
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break;
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}
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}
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void Mapper76_init(void)
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{
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SetWriteHandler(0x8000,0xffff,Mapper76_write);
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}
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