| 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 | * A98402 board, A9711, A9746 similar\r |
| 21 | * King of Fighters 96, The (Unl), Street Fighter Zero 2 (Unl)\r |
| 22 | * \r |
| 23 | */\r |
| 24 | \r |
| 25 | #include "mapinc.h"\r |
| 26 | #include "mmc3.h"\r |
| 27 | \r |
| 28 | static void M187CW(uint32 A, uint8 V)\r |
| 29 | {\r |
| 30 | if((A&0x1000)==((MMC3_cmd&0x80)<<5))\r |
| 31 | setchr1(A,V|0x100);\r |
| 32 | else\r |
| 33 | setchr1(A,V);\r |
| 34 | }\r |
| 35 | \r |
| 36 | static void M187PW(uint32 A, uint8 V)\r |
| 37 | {\r |
| 38 | if(EXPREGS[0]&0x80)\r |
| 39 | {\r |
| 40 | uint8 bank=EXPREGS[0]&0x1F;\r |
| 41 | if(EXPREGS[0]&0x20)\r |
| 42 | {\r |
| 43 | if(EXPREGS[0]&0x40)\r |
| 44 | setprg32(0x8000,bank>>2);\r |
| 45 | else\r |
| 46 | setprg32(0x8000,bank>>1); // hacky hacky! two mappers in one! need real hw carts to test\r |
| 47 | }\r |
| 48 | else\r |
| 49 | {\r |
| 50 | setprg16(0x8000,bank);\r |
| 51 | setprg16(0xC000,bank);\r |
| 52 | }\r |
| 53 | }\r |
| 54 | else\r |
| 55 | setprg8(A,V&0x3F);\r |
| 56 | }\r |
| 57 | \r |
| 58 | static DECLFW(M187Write8000)\r |
| 59 | {\r |
| 60 | EXPREGS[1]=1;\r |
| 61 | MMC3_CMDWrite(A,V);\r |
| 62 | }\r |
| 63 | \r |
| 64 | static DECLFW(M187Write8001)\r |
| 65 | {\r |
| 66 | if(EXPREGS[1])\r |
| 67 | MMC3_CMDWrite(A,V);\r |
| 68 | }\r |
| 69 | \r |
| 70 | static DECLFW(M187WriteLo)\r |
| 71 | {\r |
| 72 | if((A==0x5000)||(A==0x6000))\r |
| 73 | {\r |
| 74 | EXPREGS[0]=V;\r |
| 75 | FixMMC3PRG(MMC3_cmd);\r |
| 76 | }\r |
| 77 | }\r |
| 78 | \r |
| 79 | static uint8 prot_data[4] = { 0x83, 0x83, 0x42, 0x00 };\r |
| 80 | static DECLFR(M187Read)\r |
| 81 | {\r |
| 82 | return prot_data[EXPREGS[1]&3];\r |
| 83 | }\r |
| 84 | \r |
| 85 | static void M187Power(void)\r |
| 86 | {\r |
| 87 | EXPREGS[0]=EXPREGS[1]=0;\r |
| 88 | GenMMC3Power();\r |
| 89 | SetReadHandler(0x5000,0x5FFF,M187Read);\r |
| 90 | SetWriteHandler(0x5000,0x6FFF,M187WriteLo);\r |
| 91 | SetWriteHandler(0x8000,0x8000,M187Write8000);\r |
| 92 | SetWriteHandler(0x8001,0x8001,M187Write8001);\r |
| 93 | }\r |
| 94 | \r |
| 95 | void Mapper187_Init(CartInfo *info)\r |
| 96 | {\r |
| 97 | GenMMC3_Init(info, 256, 256, 0, 0);\r |
| 98 | pwrap=M187PW;\r |
| 99 | cwrap=M187CW;\r |
| 100 | info->Power=M187Power;\r |
| 101 | AddExState(EXPREGS, 3, 0, "EXPR");\r |
| 102 | }\r |