| 1 | /* FCE Ultra - NES/Famicom Emulator\r |
| 2 | *\r |
| 3 | * Copyright notice for this file:\r |
| 4 | * Copyright (C) 2003 CaH4e3\r |
| 5 | *\r |
| 6 | * This program is free software; you can redistribute it and/or modify\r |
| 7 | * it under the terms of the GNU General Public License as published by\r |
| 8 | * the Free Software Foundation; either version 2 of the License, or\r |
| 9 | * (at your option) any later version.\r |
| 10 | *\r |
| 11 | * This program is distributed in the hope that it will be useful,\r |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of\r |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r |
| 14 | * GNU General Public License for more details.\r |
| 15 | *\r |
| 16 | * You should have received a copy of the GNU General Public License\r |
| 17 | * along with this program; if not, write to the Free Software\r |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r |
| 19 | */\r |
| 20 | \r |
| 21 | #include "mapinc.h"\r |
| 22 | \r |
| 23 | static DECLFW(Mapper204_write)\r |
| 24 | {\r |
| 25 | int tmp2=A&0x6;\r |
| 26 | int tmp1=tmp2+((tmp2==0x6)?0:(A&1));\r |
| 27 | MIRROR_SET((A>>4)&1);\r |
| 28 | ROM_BANK16(0x8000,tmp1);\r |
| 29 | ROM_BANK16(0xc000,tmp2+((tmp2==0x6)?1:(A&1)));\r |
| 30 | VROM_BANK8(tmp1);\r |
| 31 | }\r |
| 32 | \r |
| 33 | void Mapper204_init(void)\r |
| 34 | {\r |
| 35 | ROM_BANK32(~0);\r |
| 36 | VROM_BANK8(~0);\r |
| 37 | SetWriteHandler(0x8000,0xFFFF,Mapper204_write);\r |
| 38 | }\r |