1 /* FCE Ultra - NES/Famicom Emulator
3 * Copyright notice for this file:
4 * Copyright (C) 2002 Xodnizel
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #define suntoggle mapbyte1[0]
26 static DECLFW(Mapper67_write)
29 if((A&0x800) && A<=0xb800)
31 VROM_BANK2((A-0x8800)>>1,V);
36 case 0xc000:if(!suntoggle)
48 case 0xd800:suntoggle=0;IRQa=V&0x10;X6502_IRQEnd(FCEU_IQEXT);break;
50 case 0xe800:switch(V&3)
52 case 0:MIRROR_SET2(1);break;
53 case 1:MIRROR_SET2(0);break;
54 case 2:onemir(0);break;
55 case 3:onemir(1);break;
58 case 0xf800:ROM_BANK16(0x8000,V);break;
61 static void FP_FASTAPASS(1) SunIRQHook(int a)
68 X6502_IRQBegin(FCEU_IQEXT);
74 void Mapper67_init(void)
76 SetWriteHandler(0x8000,0xffff,Mapper67_write);
77 MapIRQHook=SunIRQHook;