| 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 |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r |
| 19 | *\r |
| 20 | * Panda prince pirate.\r |
| 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 |
| 26 | */\r |
| 27 | \r |
| 28 | #include "mapinc.h"\r |
| 29 | #include "mmc3.h"\r |
| 30 | \r |
| 31 | static void Sync()\r |
| 32 | {\r |
| 33 | switch(EXPREGS[5]&0x3F)\r |
| 34 | {\r |
| 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 |
| 45 | }\r |
| 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 |
| 66 | else\r |
| 67 | {\r |
| 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 |
| 96 | }\r |
| 97 | }\r |
| 98 | \r |
| 99 | static uint8 prot_array[16] = { 0x83, 0x83, 0x42, 0x00 };\r |
| 100 | static DECLFW(M121LoWrite)\r |
| 101 | {\r |
| 102 | EXPREGS[4] = prot_array[V&3]; // 0x100 bit in address seems to be switch arrays 0, 2, 2, 3 (Contra Fighter)\r |
| 103 | // FCEU_printf("write: %04x:%04x\n",A,V);\r |
| 104 | }\r |
| 105 | \r |
| 106 | static DECLFR(M121Read)\r |
| 107 | { \r |
| 108 | // FCEU_printf("read: %04x->\n",A,EXPREGS[0]);\r |
| 109 | return EXPREGS[4];\r |
| 110 | }\r |
| 111 | \r |
| 112 | static void M121Power(void)\r |
| 113 | {\r |
| 114 | EXPREGS[5] = 0;\r |
| 115 | GenMMC3Power();\r |
| 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 |
| 124 | pwrap=M121PW;\r |
| 125 | cwrap=M121CW;\r |
| 126 | info->Power=M121Power;\r |
| 127 | AddExState(EXPREGS, 8, 0, "EXPR");\r |
| 128 | }\r |