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1 | /* FCE Ultra - NES/Famicom Emulator\r |
2 | *\r |
3 | * Copyright notice for this file:\r |
4 | * Copyright (C) 2007-2008 Mad Dumper, 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 |
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20 | * Panda prince pirate.\r |
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21 | * MK4, MK6, A9711 board\r |
22 | * 6035052 seems to be the same too, but with prot array in reverse\r |
23 | * A9746 seems to be the same too, check\r |
24 | * 187 seems to be the same too, check (A98402 board)\r |
25 | *\r |
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26 | */\r |
27 | \r |
28 | #include "mapinc.h"\r |
29 | #include "mmc3.h"\r |
30 | \r |
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31 | static void Sync()\r |
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32 | {\r |
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33 | switch(EXPREGS[5]&0x3F)\r |
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34 | {\r |
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35 | case 0x20: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;\r |
36 | case 0x29: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;\r |
37 | case 0x26: EXPREGS[7] = 0; EXPREGS[0]=EXPREGS[6]; break;\r |
38 | case 0x2B: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;\r |
39 | case 0x2C: EXPREGS[7] = 1; if(EXPREGS[6]) EXPREGS[0]=EXPREGS[6]; break;\r |
40 | case 0x3F: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;\r |
41 | case 0x28: EXPREGS[7] = 0; EXPREGS[1]=EXPREGS[6]; break;\r |
42 | case 0x2A: EXPREGS[7] = 0; EXPREGS[2]=EXPREGS[6]; break;\r |
43 | case 0x2F: break;\r |
44 | default: EXPREGS[5] = 0; break;\r |
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45 | }\r |
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46 | }\r |
47 | \r |
48 | static void M121CW(uint32 A, uint8 V)\r |
49 | {\r |
50 | if((A&0x1000)==((MMC3_cmd&0x80)<<5))\r |
51 | setchr1(A,V|0x100);\r |
52 | else\r |
53 | setchr1(A,V);\r |
54 | }\r |
55 | \r |
56 | static void M121PW(uint32 A, uint8 V)\r |
57 | {\r |
58 | if(EXPREGS[5]&0x3F)\r |
59 | {\r |
60 | // FCEU_printf("prot banks: %02x %02x %02x %02x\n",V,EXPREGS[2],EXPREGS[1],EXPREGS[0]);\r |
61 | setprg8(A,V&0x3F);\r |
62 | setprg8(0xE000,EXPREGS[0]);\r |
63 | setprg8(0xC000,EXPREGS[1]);\r |
64 | setprg8(0xA000,EXPREGS[2]);\r |
65 | } \r |
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66 | else\r |
67 | {\r |
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68 | // FCEU_printf("gen banks: %04x %02x\n",A,V);\r |
69 | setprg8(A,V&0x3F);\r |
70 | }\r |
71 | }\r |
72 | \r |
73 | static DECLFW(M121Write)\r |
74 | {\r |
75 | // FCEU_printf("write: %04x:%04x\n",A&0xE003,V);\r |
76 | switch(A&0xE003)\r |
77 | {\r |
78 | case 0x8000: //EXPREGS[5] = 0;\r |
79 | // FCEU_printf("gen: %02x\n",V);\r |
80 | MMC3_CMDWrite(A,V);\r |
81 | FixMMC3PRG(MMC3_cmd);\r |
82 | break;\r |
83 | case 0x8001: EXPREGS[6] = ((V&1)<<5)|((V&2)<<3)|((V&4)<<1)|((V&8)>>1)|((V&0x10)>>3)|((V&0x20)>>5);\r |
84 | // FCEU_printf("bank: %02x (%02x)\n",V,EXPREGS[6]);\r |
85 | if(!EXPREGS[7]) Sync();\r |
86 | MMC3_CMDWrite(A,V);\r |
87 | FixMMC3PRG(MMC3_cmd);\r |
88 | break;\r |
89 | case 0x8003: EXPREGS[5] = V;\r |
90 | // EXPREGS[7] = 0;\r |
91 | // FCEU_printf("prot: %02x\n",EXPREGS[5]);\r |
92 | Sync();\r |
93 | MMC3_CMDWrite(0x8000,V);\r |
94 | FixMMC3PRG(MMC3_cmd);\r |
95 | break;\r |
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96 | }\r |
97 | }\r |
98 | \r |
99 | static uint8 prot_array[16] = { 0x83, 0x83, 0x42, 0x00 };\r |
100 | static DECLFW(M121LoWrite)\r |
101 | {\r |
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102 | EXPREGS[4] = prot_array[V&3]; // 0x100 bit in address seems to be switch arrays 0, 2, 2, 3 (Contra Fighter)\r |
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103 | // FCEU_printf("write: %04x:%04x\n",A,V);\r |
104 | }\r |
105 | \r |
106 | static DECLFR(M121Read)\r |
107 | { \r |
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108 | // FCEU_printf("read: %04x->\n",A,EXPREGS[0]);\r |
109 | return EXPREGS[4];\r |
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110 | }\r |
111 | \r |
112 | static void M121Power(void)\r |
113 | {\r |
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114 | EXPREGS[5] = 0;\r |
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115 | GenMMC3Power();\r |
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116 | SetReadHandler(0x5000,0x5FFF,M121Read);\r |
117 | SetWriteHandler(0x5000,0x5FFF,M121LoWrite);\r |
118 | SetWriteHandler(0x8000,0x9FFF,M121Write);\r |
119 | }\r |
120 | \r |
121 | void Mapper121_Init(CartInfo *info)\r |
122 | {\r |
123 | GenMMC3_Init(info, 128, 256, 8, 0);\r |
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124 | pwrap=M121PW;\r |
125 | cwrap=M121CW;\r |
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126 | info->Power=M121Power;\r |
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127 | AddExState(EXPREGS, 8, 0, "EXPR");\r |
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128 | }\r |