1 /* FCE Ultra - NES/Famicom Emulator
3 * Copyright notice for this file:
4 * Copyright (C) 2002 Ben Parnell
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
23 static DECLFW(Mapper33_write)
27 //printf("$%04x:$%02x, %d\n",A,V,scanline);
28 if(A>=0xA000 && A<=0xA003)
29 VROM_BANK1(0x1000+((A&3)<<10),V);
31 case 0x8000:if(!mapbyte1[0])
35 case 0x8001:ROM_BANK8(0xA000,V); break;
36 case 0x8002:VROM_BANK2(0x0000,V);break;
37 case 0x8003:VROM_BANK2(0x0800,V);break;
38 case 0xc000:IRQLatch=V;break;
39 case 0xc001:IRQCount=IRQLatch;break;
40 case 0xc003:IRQa=0;break;
41 case 0xc002:IRQa=1;break;
42 case 0xe000:mapbyte1[0]=1;MIRROR_SET((V>>6)&1);break;
46 static void heho(void)
59 void Mapper33_init(void)
61 SetWriteHandler(0x8000,0xffff,Mapper33_write);