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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 |
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18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r |
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19 | * \r |
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20 | * Wario Land II (Kirby hack) VRC4\r |
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21 | */\r |
22 | \r |
23 | #include "mapinc.h"\r |
24 | \r |
25 | static uint8 reg[8], chr[8];\r |
26 | static uint8 *WRAM=NULL;\r |
27 | static uint32 WRAMSIZE;\r |
28 | static uint16 IRQCount, IRQa;\r |
29 | \r |
30 | static SFORMAT StateRegs[]=\r |
31 | {\r |
32 | {reg, 8, "REGS"},\r |
33 | {chr, 8, "CHRS"},\r |
34 | {&IRQCount, 16, "IRQc"},\r |
35 | {&IRQa, 16, "IRQa"},\r |
36 | {0}\r |
37 | };\r |
38 | \r |
39 | static void Sync(void)\r |
40 | {\r |
41 | int i;\r |
42 | setprg8(0x8000,reg[0]);\r |
43 | setprg8(0xA000,reg[1]);\r |
44 | setprg8(0xC000,reg[2]);\r |
45 | for(i=0; i<8; i++)\r |
46 | setchr1(i << 10,chr[i]);\r |
47 | setmirror(reg[3]^1);\r |
48 | }\r |
49 | \r |
50 | static DECLFW(UNLSC127Write)\r |
51 | {\r |
52 | switch(A)\r |
53 | {\r |
54 | case 0x8000: reg[0] = V; break; \r |
55 | case 0x8001: reg[1] = V; break;\r |
56 | case 0x8002: reg[2] = V; break;\r |
57 | case 0x9000: chr[0] = V; break;\r |
58 | case 0x9001: chr[1] = V; break;\r |
59 | case 0x9002: chr[2] = V; break;\r |
60 | case 0x9003: chr[3] = V; break;\r |
61 | case 0x9004: chr[4] = V; break;\r |
62 | case 0x9005: chr[5] = V; break;\r |
63 | case 0x9006: chr[6] = V; break;\r |
64 | case 0x9007: chr[7] = V; break;\r |
65 | case 0xC002: IRQa=0; X6502_IRQEnd(FCEU_IQEXT); break;\r |
66 | case 0xC005: IRQCount=V; break;\r |
67 | case 0xC003: IRQa=1; break;\r |
68 | case 0xD001: reg[3] = V; break;\r |
69 | }\r |
70 | Sync();\r |
71 | }\r |
72 | \r |
73 | static void UNLSC127Power(void)\r |
74 | {\r |
75 | Sync();\r |
76 | setprg8r(0x10,0x6000,0);\r |
77 | setprg8(0xE000,~0);\r |
78 | SetReadHandler(0x6000,0x7fff,CartBR);\r |
79 | SetWriteHandler(0x6000,0x7fff,CartBW);\r |
80 | SetReadHandler(0x8000,0xFFFF,CartBR);\r |
81 | SetWriteHandler(0x8000,0xFFFF,UNLSC127Write);\r |
82 | }\r |
83 | \r |
84 | static void UNLSC127IRQ(void)\r |
85 | {\r |
86 | if(IRQa)\r |
87 | {\r |
88 | IRQCount--;\r |
89 | if(IRQCount==0)\r |
90 | {\r |
91 | X6502_IRQBegin(FCEU_IQEXT);\r |
92 | IRQa=0;\r |
93 | }\r |
94 | }\r |
95 | }\r |
96 | \r |
97 | static void UNLSC127Reset(void)\r |
98 | {\r |
99 | }\r |
100 | \r |
101 | static void UNLSC127Close(void)\r |
102 | {\r |
103 | if(WRAM)\r |
104 | FCEU_gfree(WRAM);\r |
105 | WRAM=NULL;\r |
106 | }\r |
107 | \r |
108 | static void StateRestore(int version)\r |
109 | {\r |
110 | Sync();\r |
111 | }\r |
112 | \r |
113 | void UNLSC127_Init(CartInfo *info)\r |
114 | {\r |
115 | info->Reset=UNLSC127Reset;\r |
116 | info->Power=UNLSC127Power;\r |
117 | info->Close=UNLSC127Close;\r |
118 | GameHBIRQHook=UNLSC127IRQ;\r |
119 | GameStateRestore=StateRestore;\r |
120 | WRAMSIZE=8192;\r |
121 | WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);\r |
122 | SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);\r |
123 | AddExState(WRAM, WRAMSIZE, 0, "WRAM");\r |
124 | AddExState(&StateRegs, ~0, 0, 0);\r |
125 | }\r |