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1 | /* FCE Ultra - NES/Famicom Emulator\r |
2 | *\r |
3 | * Copyright notice for this file:\r |
4 | * Copyright (C) 2006 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 |
43725da7 |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r |
19 | *\r |
20 | * TXC mappers, originally much complex banksitching\r |
21 | *\r |
22 | * 01-22111-000 (05-00002-010) (132, 22211) - MGC-001 Qi Wang\r |
23 | * 01-22110-000 (52S ) - MGC-002 2-in-1 Gun\r |
24 | * 01-22111-100 (02-00002-010) (173 ) - MGC-008 Mahjong Block\r |
25 | * (079 ) - MGC-012 Poke Block\r |
26 | * 01-22110-200 (05-00002-010) (036 ) - MGC-014 Strike Wolf\r |
27 | * 01-22000-400 (05-00002-010) (036 ) - MGC-015 Policeman\r |
28 | * 01-22017-000 (05-PT017-080) (189 ) - MGC-017 Thunder Warrior\r |
29 | * 01-22270-000 (05-00002-010) (132, 22211) - MGC-xxx Creatom\r |
30 | * 01-22200-400 (------------) (079 ) - ET.03 F-15 City War\r |
31 | * (172 ) - 1991 Du Ma Racing\r |
32 | *\r |
386f5371 |
33 | */\r |
34 | \r |
35 | #include "mapinc.h"\r |
36 | \r |
37 | static uint8 reg[4], cmd, is172, is173;\r |
38 | static SFORMAT StateRegs[]=\r |
39 | {\r |
40 | {reg, 4, "REGS"},\r |
41 | {&cmd, 1, "CMD"},\r |
42 | {0}\r |
43 | };\r |
44 | \r |
45 | static void Sync(void)\r |
46 | {\r |
47 | setprg32(0x8000,(reg[2]>>2)&1);\r |
48 | if(is172)\r |
49 | setchr8((((cmd^reg[2])>>3)&2)|(((cmd^reg[2])>>5)&1)); // 1991 DU MA Racing probably CHR bank sequence is WRONG, so it is possible to\r |
50 | // rearrange CHR banks for normal UNIF board and mapper 172 is unneccessary\r |
51 | else\r |
52 | setchr8(reg[2]&3);\r |
53 | }\r |
54 | \r |
55 | static DECLFW(UNL22211WriteLo)\r |
56 | {\r |
57 | // FCEU_printf("bs %04x %02x\n",A,V);\r |
58 | reg[A&3]=V;\r |
59 | }\r |
60 | \r |
61 | static DECLFW(UNL22211WriteHi)\r |
62 | {\r |
63 | // FCEU_printf("bs %04x %02x\n",A,V);\r |
64 | cmd=V;\r |
65 | Sync();\r |
66 | }\r |
67 | \r |
68 | static DECLFR(UNL22211ReadLo)\r |
69 | {\r |
70 | return (reg[1]^reg[2])|(is173?0x01:0x40);\r |
71 | // if(reg[3])\r |
72 | // return reg[2];\r |
73 | // else\r |
74 | // return X.DB;\r |
75 | }\r |
76 | \r |
77 | static void UNL22211Power(void)\r |
78 | {\r |
79 | Sync();\r |
80 | SetReadHandler(0x8000,0xFFFF,CartBR);\r |
81 | SetReadHandler(0x4100,0x4100,UNL22211ReadLo);\r |
82 | SetWriteHandler(0x4100,0x4103,UNL22211WriteLo);\r |
83 | SetWriteHandler(0x8000,0xFFFF,UNL22211WriteHi);\r |
84 | }\r |
85 | \r |
86 | static void StateRestore(int version)\r |
87 | {\r |
88 | Sync();\r |
89 | }\r |
90 | \r |
91 | void UNL22211_Init(CartInfo *info)\r |
92 | {\r |
93 | is172=0;\r |
94 | is173=0;\r |
95 | info->Power=UNL22211Power;\r |
96 | GameStateRestore=StateRestore;\r |
97 | AddExState(&StateRegs, ~0, 0, 0);\r |
98 | }\r |
99 | \r |
100 | void Mapper172_Init(CartInfo *info)\r |
101 | {\r |
102 | is172=1; \r |
103 | is173=0;\r |
104 | info->Power=UNL22211Power;\r |
105 | GameStateRestore=StateRestore;\r |
106 | AddExState(&StateRegs, ~0, 0, 0);\r |
107 | }\r |
108 | \r |
109 | void Mapper173_Init(CartInfo *info)\r |
110 | {\r |
111 | is172=0; \r |
112 | is173=1;\r |
113 | info->Power=UNL22211Power;\r |
114 | GameStateRestore=StateRestore;\r |
115 | AddExState(&StateRegs, ~0, 0, 0);\r |
116 | }\r |