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1 | /* FCE Ultra - NES/Famicom Emulator\r |
2 | *\r |
3 | * Copyright notice for this file:\r |
4 | * Copyright (C) 2009 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 | * 7-in-1 Darkwing Duck, Snake, MagicBlock (PCB marked as "12 in 1")\r |
21 | */\r |
22 | \r |
23 | #include "mapinc.h"\r |
24 | \r |
25 | static uint8 reg[4];\r |
26 | static SFORMAT StateRegs[]=\r |
27 | {\r |
28 | {reg, 4, "REGS"},\r |
29 | {0}\r |
30 | };\r |
31 | \r |
32 | static void Sync(void)\r |
33 | {\r |
34 | uint8 bank = (reg[3]&3)<<3;\r |
35 | setchr4(0x0000, (reg[1]>>3)|(bank<<2));\r |
36 | setchr4(0x1000, (reg[2]>>3)|(bank<<2));\r |
37 | if(reg[3]&8)\r |
38 | {\r |
39 | setprg32(0x8000,((reg[2]&7)>>1)|bank);\r |
40 | }\r |
41 | else\r |
42 | {\r |
43 | setprg16(0x8000, (reg[1]&7)|bank);\r |
44 | setprg16(0xc000, 7|bank);\r |
45 | }\r |
46 | setmirror(((reg[3]&4)>>2)^1);\r |
47 | }\r |
48 | \r |
49 | static DECLFW(BMC12IN1Write)\r |
50 | {\r |
51 | switch(A)\r |
52 | {\r |
53 | case 0xafff: reg[0] = V; break;\r |
54 | case 0xbfff: reg[1] = V; break;\r |
55 | case 0xdfff: reg[2] = V; break;\r |
56 | case 0xefff: reg[3] = V; break;\r |
57 | }\r |
58 | Sync();\r |
59 | }\r |
60 | \r |
61 | static void BMC12IN1Power(void)\r |
62 | {\r |
63 | reg[0]=reg[1]=reg[2]=reg[3]=0;\r |
64 | Sync();\r |
65 | SetReadHandler(0x8000,0xFFFF,CartBR);\r |
66 | SetWriteHandler(0x8000,0xFFFF,BMC12IN1Write);\r |
67 | }\r |
68 | \r |
69 | static void StateRestore(int version)\r |
70 | {\r |
71 | Sync();\r |
72 | }\r |
73 | \r |
74 | void BMC12IN1_Init(CartInfo *info)\r |
75 | {\r |
76 | info->Power=BMC12IN1Power;\r |
77 | GameStateRestore=StateRestore;\r |
78 | AddExState(&StateRegs, ~0, 0, 0);\r |
79 | }\r |