| 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 | * Wario Land II (Kirby hack) VRC4\r |
| 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 |