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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 | * RacerMate Chalenge II\r |
21 | *\r |
22 | */\r |
23 | \r |
24 | #include "mapinc.h"\r |
25 | \r |
26 | static uint8 reg;\r |
27 | static uint8 *CHRRAM=NULL;\r |
28 | static uint32 CHRRAMSIZE;\r |
29 | \r |
30 | static SFORMAT StateRegs[]=\r |
31 | {\r |
32 | {®, 1, "REGS"},\r |
33 | {0}\r |
34 | };\r |
35 | \r |
36 | static void Sync(void)\r |
37 | {\r |
38 | setchr4r(0x10,0x0000,0);\r |
39 | setchr4r(0x10,0x1000,reg&0x0f);\r |
40 | setprg16(0x8000,reg>>6);\r |
41 | setprg16(0xc000,~0);\r |
42 | }\r |
43 | \r |
44 | static DECLFW(M168Write)\r |
45 | {\r |
46 | reg=V;\r |
47 | Sync();\r |
48 | }\r |
49 | \r |
50 | static DECLFW(M168Dummy)\r |
51 | {\r |
52 | }\r |
53 | \r |
54 | static void M168Power(void)\r |
55 | {\r |
56 | reg=0;\r |
57 | Sync();\r |
58 | SetWriteHandler(0x4020,0x7fff,M168Dummy);\r |
59 | SetWriteHandler(0xB000,0xB000,M168Write);\r |
60 | SetWriteHandler(0xF000,0xF000,M168Dummy);\r |
61 | SetWriteHandler(0xF080,0xF080,M168Dummy);\r |
62 | SetReadHandler(0x8000,0xFFFF,CartBR);\r |
63 | }\r |
64 | \r |
65 | static void MNNNClose(void)\r |
66 | {\r |
67 | if(CHRRAM)\r |
68 | FCEU_gfree(CHRRAM);\r |
69 | CHRRAM=NULL;\r |
70 | }\r |
71 | \r |
72 | static void StateRestore(int version)\r |
73 | {\r |
74 | Sync();\r |
75 | }\r |
76 | \r |
77 | void Mapper168_Init(CartInfo *info)\r |
78 | {\r |
79 | info->Power=M168Power;\r |
80 | info->Close=MNNNClose;\r |
81 | GameStateRestore=StateRestore;\r |
82 | AddExState(&StateRegs, ~0, 0, 0);\r |
83 | \r |
84 | CHRRAMSIZE=8192*8;\r |
85 | CHRRAM=(uint8*)FCEU_gmalloc(CHRRAMSIZE);\r |
86 | SetupCartCHRMapping(0x10,CHRRAM,CHRRAMSIZE,1);\r |
87 | AddExState(CHRRAM, CHRRAMSIZE, 0, "CRAM");\r |
88 | \r |
89 | }\r |