| 1 | /* FCE Ultra - NES/Famicom Emulator\r |
| 2 | *\r |
| 3 | * Copyright notice for this file:\r |
| 4 | * Copyright (C) 2005 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 | * BMC 42-in-1 "reset switch" type\r |
| 21 | */\r |
| 22 | \r |
| 23 | #include "mapinc.h"\r |
| 24 | \r |
| 25 | static uint8 bank_mode;\r |
| 26 | static uint8 bank_value;\r |
| 27 | static uint8 prgb[4];\r |
| 28 | static SFORMAT StateRegs[]=\r |
| 29 | {\r |
| 30 | {0}\r |
| 31 | };\r |
| 32 | \r |
| 33 | static void Sync(void)\r |
| 34 | {\r |
| 35 | FCEU_printf("%02x: %02x %02x\n", bank_mode, bank_value, prgb[0]); \r |
| 36 | switch(bank_mode&7)\r |
| 37 | {\r |
| 38 | case 0:\r |
| 39 | setprg32(0x8000,bank_value&7); break;\r |
| 40 | case 1:\r |
| 41 | setprg16(0x8000,((8+(bank_value&7))>>1)+prgb[1]);\r |
| 42 | setprg16(0xC000,(bank_value&7)>>1);\r |
| 43 | case 4:\r |
| 44 | setprg32(0x8000,8+(bank_value&7)); break;\r |
| 45 | case 5:\r |
| 46 | setprg16(0x8000,((8+(bank_value&7))>>1)+prgb[1]);\r |
| 47 | setprg16(0xC000,((8+(bank_value&7))>>1)+prgb[3]);\r |
| 48 | case 2:\r |
| 49 | setprg8(0x8000,prgb[0]>>2);\r |
| 50 | setprg8(0xa000,prgb[1]);\r |
| 51 | setprg8(0xc000,prgb[2]);\r |
| 52 | setprg8(0xe000,~0);\r |
| 53 | break;\r |
| 54 | case 3:\r |
| 55 | setprg8(0x8000,prgb[0]);\r |
| 56 | setprg8(0xa000,prgb[1]);\r |
| 57 | setprg8(0xc000,prgb[2]);\r |
| 58 | setprg8(0xe000,prgb[3]);\r |
| 59 | break;\r |
| 60 | }\r |
| 61 | }\r |
| 62 | \r |
| 63 | static DECLFW(BMC13in1JY110Write)\r |
| 64 | {\r |
| 65 | FCEU_printf("%04x:%04x\n",A,V);\r |
| 66 | switch(A)\r |
| 67 | {\r |
| 68 | case 0x8000:\r |
| 69 | case 0x8001:\r |
| 70 | case 0x8002:\r |
| 71 | case 0x8003: prgb[A&3]=V; break;\r |
| 72 | case 0xD000: bank_mode=V; break;\r |
| 73 | case 0xD001: setmirror(V&3);\r |
| 74 | case 0xD002: break;\r |
| 75 | case 0xD003: bank_value=V; break;\r |
| 76 | }\r |
| 77 | Sync();\r |
| 78 | }\r |
| 79 | \r |
| 80 | static void BMC13in1JY110Power(void)\r |
| 81 | {\r |
| 82 | prgb[0]=prgb[1]=prgb[2]=prgb[3]=0;\r |
| 83 | bank_mode=0;\r |
| 84 | bank_value=0;\r |
| 85 | setprg32(0x8000,0);\r |
| 86 | setchr8(0);\r |
| 87 | SetWriteHandler(0x8000,0xFFFF,BMC13in1JY110Write);\r |
| 88 | SetReadHandler(0x8000,0xFFFF,CartBR);\r |
| 89 | }\r |
| 90 | \r |
| 91 | static void StateRestore(int version)\r |
| 92 | {\r |
| 93 | Sync();\r |
| 94 | }\r |
| 95 | \r |
| 96 | void BMC13in1JY110_Init(CartInfo *info)\r |
| 97 | {\r |
| 98 | info->Power=BMC13in1JY110Power;\r |
| 99 | AddExState(&StateRegs, ~0, 0, 0);\r |
| 100 | GameStateRestore=StateRestore;\r |
| 101 | }\r |
| 102 | \r |
| 103 | \r |