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1 | /* FCE Ultra - NES/Famicom Emulator\r |
2 | *\r |
3 | * Copyright notice for this file:\r |
4 | * Copyright (C) 2011 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 | * PCB-018 board, discrete multigame cart 110-in-1\r |
21 | *\r |
22 | */\r |
23 | \r |
24 | #include "mapinc.h"\r |
25 | \r |
26 | static uint8 prot[4], prg, mode, chr, mirr;\r |
27 | \r |
28 | static SFORMAT StateRegs[]=\r |
29 | {\r |
30 | {prot, 4, "PROT"},\r |
31 | {&prg, 1, "PRG"},\r |
32 | {&chr, 1, "CHR"},\r |
33 | {&mode, 1, "MODE"},\r |
34 | {&mirr, 1, "MIRR"},\r |
35 | {0}\r |
36 | };\r |
37 | \r |
38 | static void Sync(void)\r |
39 | {\r |
40 | if(mode)\r |
41 | {\r |
42 | setprg16(0x8000,prg);\r |
43 | setprg16(0xC000,prg);\r |
44 | }\r |
45 | else\r |
46 | setprg32(0x8000,prg>>1);\r |
47 | setchr8(chr);\r |
48 | setmirror(mirr);\r |
49 | }\r |
50 | \r |
51 | static DECLFW(M225Write)\r |
52 | {\r |
53 | uint32 bank = (A >> 14) & 1;\r |
54 | mirr = (A >> 13) & 1;\r |
55 | mode = (A >> 12) & 1;\r |
56 | chr = (A & 0x3f) | (bank << 6);\r |
57 | prg = ((A >> 6) & 0x3f) | (bank << 6);\r |
58 | Sync();\r |
59 | }\r |
60 | \r |
61 | static DECLFW(M225LoWrite)\r |
62 | {\r |
63 | }\r |
64 | \r |
65 | static DECLFR(M225LoRead)\r |
66 | {\r |
67 | return 0;\r |
68 | }\r |
69 | \r |
70 | static void M225Power(void)\r |
71 | { \r |
72 | prg = 0;\r |
73 | mode = 0;\r |
74 | Sync();\r |
75 | SetReadHandler(0x5000,0x5fff,M225LoRead);\r |
76 | SetWriteHandler(0x5000,0x5fff,M225LoWrite);\r |
77 | SetReadHandler(0x8000,0xFFFF,CartBR);\r |
78 | SetWriteHandler(0x8000,0xFFFF,M225Write);\r |
79 | }\r |
80 | \r |
81 | static void M225Reset(void)\r |
82 | {\r |
83 | prg = 0;\r |
84 | mode = 0;\r |
85 | Sync();\r |
86 | }\r |
87 | \r |
88 | static void StateRestore(int version)\r |
89 | {\r |
90 | Sync();\r |
91 | }\r |
92 | \r |
93 | void Mapper225_Init(CartInfo *info)\r |
94 | {\r |
95 | info->Reset=M225Reset;\r |
96 | info->Power=M225Power;\r |
97 | GameStateRestore=StateRestore;\r |
98 | AddExState(&StateRegs, ~0, 0, 0);\r |
99 | }\r |