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1 | /* FCE Ultra - NES/Famicom Emulator\r |
2 | *\r |
3 | * Copyright notice for this file:\r |
4 | * Copyright (C) 2007 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 |
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18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r |
19 | * \r |
20 | * San Guo Zhong Lie Zhuan (Ch)\r |
21 | * win200, etc\r |
22 | *\r |
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23 | */\r |
24 | \r |
25 | #include "mapinc.h"\r |
26 | \r |
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27 | static uint8 reg[4];\r |
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28 | static uint8 *WRAM=NULL;\r |
29 | static uint32 WRAMSIZE;\r |
30 | \r |
31 | static SFORMAT StateRegs[]=\r |
32 | {\r |
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33 | {reg, 4, "REGS"},\r |
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34 | {0}\r |
35 | };\r |
36 | \r |
37 | static void Sync(void)\r |
38 | {\r |
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39 | uint8 bank = (reg[2]&3)<<3;\r |
40 | setmirror((reg[0]&1)^1);\r |
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41 | setprg8r(0x10,0x6000,0);\r |
42 | setchr8(0);\r |
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43 | if(reg[0]&2)\r |
44 | {\r |
45 | setprg16(0x8000,(reg[1]&7)|bank);\r |
46 | setprg16(0xC000,((~0)&7)|bank);\r |
47 | }\r |
48 | else\r |
49 | {\r |
50 | setprg16(0x8000,(reg[1]&6)|bank);\r |
51 | setprg16(0xC000,(reg[1]&6)|bank|1);\r |
52 | }\r |
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53 | }\r |
54 | \r |
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55 | static DECLFW(M178Write)\r |
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56 | {\r |
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57 | reg[A&3]=V;\r |
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58 | Sync();\r |
59 | }\r |
60 | \r |
61 | static void M178Power(void)\r |
62 | {\r |
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63 | reg[0]=1;\r |
64 | reg[1]=0;\r |
65 | reg[2]=0;\r |
66 | reg[3]=0;\r |
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67 | Sync();\r |
68 | SetReadHandler(0x6000,0x7FFF,CartBR);\r |
69 | SetWriteHandler(0x6000,0x7FFF,CartBW);\r |
70 | SetReadHandler(0x8000,0xFFFF,CartBR);\r |
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71 | SetWriteHandler(0x4800,0x4803,M178Write);\r |
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72 | }\r |
73 | \r |
74 | static void M178Close(void)\r |
75 | {\r |
76 | if(WRAM)\r |
77 | FCEU_gfree(WRAM);\r |
78 | WRAM=NULL;\r |
79 | }\r |
80 | \r |
81 | \r |
82 | static void StateRestore(int version)\r |
83 | {\r |
84 | Sync();\r |
85 | }\r |
86 | \r |
87 | void Mapper178_Init(CartInfo *info)\r |
88 | {\r |
89 | info->Power=M178Power;\r |
90 | info->Close=M178Close;\r |
91 | GameStateRestore=StateRestore;\r |
92 | \r |
93 | WRAMSIZE=8192;\r |
94 | WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);\r |
95 | SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);\r |
96 | if(info->battery)\r |
97 | {\r |
98 | info->SaveGame[0]=WRAM;\r |
99 | info->SaveGameLen[0]=WRAMSIZE;\r |
100 | }\r |
101 | AddExState(WRAM, WRAMSIZE, 0, "WRAM");\r |
102 | \r |
103 | AddExState(&StateRegs, ~0, 0, 0);\r |
104 | }\r |