| 1 | /* FCE Ultra - NES/Famicom Emulator\r |
| 2 | *\r |
| 3 | * Copyright notice for this file:\r |
| 4 | * Copyright (C) 2005 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 | #include "mmc3.h"\r |
| 23 | \r |
| 24 | static void M189PW(uint32 A, uint8 V)\r |
| 25 | {\r |
| 26 | setprg32(0x8000,EXPREGS[0]&7);\r |
| 27 | }\r |
| 28 | \r |
| 29 | static DECLFW(M189Write)\r |
| 30 | {\r |
| 31 | EXPREGS[0]=V|(V>>4); //actually, there is a two versions of 189 mapper with hi or lo bits bankswitching.\r |
| 32 | FixMMC3PRG(MMC3_cmd);\r |
| 33 | }\r |
| 34 | \r |
| 35 | static void M189Power(void)\r |
| 36 | {\r |
| 37 | EXPREGS[0]=EXPREGS[1]=0;\r |
| 38 | GenMMC3Power();\r |
| 39 | SetWriteHandler(0x4120,0x7FFF,M189Write);\r |
| 40 | }\r |
| 41 | \r |
| 42 | void Mapper189_Init(CartInfo *info)\r |
| 43 | {\r |
| 44 | GenMMC3_Init(info, 256, 256, 0, 0);\r |
| 45 | pwrap=M189PW;\r |
| 46 | info->Power=M189Power;\r |
| 47 | AddExState(EXPREGS, 2, 0, "EXPR");\r |
| 48 | }\r |