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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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]&3);\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 |