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
25 static DECLFW(Mapper33_write)
27 //printf("%04x:%02x, %d\n",A,V,scanline);
30 if(A>=0xA000 && A<=0xA003)
31 VROM_BANK1(0x1000+((A&3)<<10),V);
34 case 0x8000:if(!is48) MIRROR_SET((V>>6)&1);
37 case 0x8001:ROM_BANK8(0xA000,V); break;
38 case 0x8002:VROM_BANK2(0x0000,V);break;
39 case 0x8003:VROM_BANK2(0x0800,V);break;
43 static DECLFW(Mapper48_HiWrite)
47 case 0xc000:IRQLatch=V;break;
48 case 0xc001:IRQCount=IRQLatch;break;
49 case 0xc003:IRQa=0;X6502_IRQEnd(FCEU_IQEXT);break;
50 case 0xc002:IRQa=1;break;
51 case 0xe000:MIRROR_SET((V>>6)&1);break;
55 static void heho(void)
62 X6502_IRQBegin(FCEU_IQEXT);
68 void Mapper33_init(void)
70 SetWriteHandler(0x8000,0xffff,Mapper33_write);
74 void Mapper48_init(void)
76 SetWriteHandler(0x8000,0xffff,Mapper33_write);
77 SetWriteHandler(0xc000,0xffff,Mapper48_HiWrite);