| 1 | /* FCE Ultra - NES/Famicom Emulator\r |
| 2 | *\r |
| 3 | * Copyright notice for this file:\r |
| 4 | * Copyright (C) 2012 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 | \r |
| 21 | #include "mapinc.h"\r |
| 22 | #include "mmc3.h"\r |
| 23 | \r |
| 24 | static void SA9602BPW(uint32 A, uint8 V)\r |
| 25 | {\r |
| 26 | setprg8r(EXPREGS[1],A,V&0x3F);\r |
| 27 | if(MMC3_cmd&0x40)\r |
| 28 | setprg8r(0,0x8000,~(1));\r |
| 29 | else\r |
| 30 | setprg8r(0,0xc000,~(1));\r |
| 31 | setprg8r(0,0xe000,~(0));\r |
| 32 | }\r |
| 33 | \r |
| 34 | static DECLFW(SA9602BWrite)\r |
| 35 | {\r |
| 36 | switch(A & 0xe001)\r |
| 37 | {\r |
| 38 | case 0x8000: EXPREGS[0] = V; break;\r |
| 39 | case 0x8001:\r |
| 40 | if((EXPREGS[0] & 7) < 6)\r |
| 41 | {\r |
| 42 | EXPREGS[1] = V >> 6;\r |
| 43 | FixMMC3PRG(MMC3_cmd);\r |
| 44 | }\r |
| 45 | break;\r |
| 46 | }\r |
| 47 | MMC3_CMDWrite(A, V);\r |
| 48 | }\r |
| 49 | \r |
| 50 | static void SA9602BPower(void)\r |
| 51 | {\r |
| 52 | EXPREGS[0]=EXPREGS[1]=0;\r |
| 53 | GenMMC3Power();\r |
| 54 | SetReadHandler(0x8000,0xFFFF,CartBR);\r |
| 55 | SetWriteHandler(0x8000,0xBFFF,SA9602BWrite);\r |
| 56 | }\r |
| 57 | \r |
| 58 | void SA9602B_Init(CartInfo *info)\r |
| 59 | {\r |
| 60 | GenMMC3_Init(info, 512, 0, 0, 0);\r |
| 61 | pwrap=SA9602BPW;\r |
| 62 | mmc3opts|=2;\r |
| 63 | info->SaveGame[0]=UNIFchrrama;\r |
| 64 | info->SaveGameLen[0]=32 * 1024;\r |
| 65 | info->Power=SA9602BPower;\r |
| 66 | AddExState(EXPREGS, 2, 0, "EXPR");\r |
| 67 | }\r |