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https://github.com/dborth/fceugx.git
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55 lines
1.4 KiB
C
55 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) 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(Mapper61_write)
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{
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// printf("$%04x:$%02x\n",A,V);
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switch(A&0x30)
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{
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case 0x00:
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case 0x30:
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ROM_BANK32(A&0xF);
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break;
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case 0x20:
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case 0x10:
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ROM_BANK16(0x8000,((A&0xF)<<1)| (((A&0x20)>>4)) );
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ROM_BANK16(0xC000,((A&0xF)<<1)| (((A&0x20)>>4)) );
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break;
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}
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#ifdef moo
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if(!(A&0x10))
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ROM_BANK32(A&0xF);
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else
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{
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ROM_BANK16(0x8000,((A&0xF)<<1)| (((A&0x10)>>4)^1) );
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ROM_BANK16(0xC000,((A&0xF)<<1)| (((A&0x10)>>4)^1) );
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}
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#endif
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MIRROR_SET((A&0x80)>>7);
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}
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void Mapper61_init(void)
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{
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SetWriteHandler(0x8000,0xffff,Mapper61_write);
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}
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