1 /* FCE Ultra - NES/Famicom Emulator
3 * Copyright notice for this file:
4 * Copyright (C) 2005 CaH4e3
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 static uint8 invalid_data;
25 static SFORMAT StateRegs[]=
27 {&cmdreg, 2, "CMDREG"},
31 static void Sync(void)
33 setprg16r((cmdreg&0x060)>>5,0x8000,(cmdreg&0x01C)>>2);
34 setprg16r((cmdreg&0x060)>>5,0xC000,(cmdreg&0x200)?(~0):0);
35 setmirror(((cmdreg&2)>>1)^1);
38 static DECLFR(UNL8157Read)
40 if(invalid_data&&cmdreg&0x100)
46 static DECLFW(UNL8157Write)
52 static void UNL8157Power(void)
55 SetWriteHandler(0x8000,0xFFFF,UNL8157Write);
56 SetReadHandler(0x8000,0xFFFF,UNL8157Read);
62 static void UNL8157Reset(void)
69 static void UNL8157Restore(int version)
74 void UNL8157_Init(CartInfo *info)
76 info->Power=UNL8157Power;
77 info->Reset=UNL8157Reset;
78 GameStateRestore=UNL8157Restore;
79 AddExState(&StateRegs, ~0, 0, 0);