1 /* FCE Ultra - NES/Famicom Emulator
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3 * Copyright notice for this file:
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4 * Copyright (C) 2007-2008 Mad Dumper, CaH4e3
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or
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9 * (at your option) any later version.
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11 * This program is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program; if not, write to the Free Software
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18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 * Panda prince pirate.
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21 * MK4, MK6, A9711 board
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22 * 6035052 seems to be the same too, but with prot array in reverse
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23 * A9746 seems to be the same too, check
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24 * 187 seems to be the same too, check (A98402 board)
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33 switch(EXPREGS[5]&0x3F)
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35 case 0x20: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;
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36 case 0x29: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;
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37 case 0x26: EXPREGS[7] = 0; EXPREGS[0]=EXPREGS[6]; break;
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38 case 0x2B: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;
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39 case 0x2C: EXPREGS[7] = 1; if(EXPREGS[6]) EXPREGS[0]=EXPREGS[6]; break;
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40 case 0x3F: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;
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41 case 0x28: EXPREGS[7] = 0; EXPREGS[1]=EXPREGS[6]; break;
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42 case 0x2A: EXPREGS[7] = 0; EXPREGS[2]=EXPREGS[6]; break;
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44 default: EXPREGS[5] = 0; break;
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48 static void M121CW(uint32 A, uint8 V)
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50 if((A&0x1000)==((MMC3_cmd&0x80)<<5))
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56 static void M121PW(uint32 A, uint8 V)
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60 // FCEU_printf("prot banks: %02x %02x %02x %02x\n",V,EXPREGS[2],EXPREGS[1],EXPREGS[0]);
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62 setprg8(0xE000,EXPREGS[0]);
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63 setprg8(0xC000,EXPREGS[1]);
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64 setprg8(0xA000,EXPREGS[2]);
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68 // FCEU_printf("gen banks: %04x %02x\n",A,V);
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73 static DECLFW(M121Write)
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75 // FCEU_printf("write: %04x:%04x\n",A&0xE003,V);
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78 case 0x8000: //EXPREGS[5] = 0;
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79 // FCEU_printf("gen: %02x\n",V);
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81 FixMMC3PRG(MMC3_cmd);
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83 case 0x8001: EXPREGS[6] = ((V&1)<<5)|((V&2)<<3)|((V&4)<<1)|((V&8)>>1)|((V&0x10)>>3)|((V&0x20)>>5);
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84 // FCEU_printf("bank: %02x (%02x)\n",V,EXPREGS[6]);
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85 if(!EXPREGS[7]) Sync();
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87 FixMMC3PRG(MMC3_cmd);
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89 case 0x8003: EXPREGS[5] = V;
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91 // FCEU_printf("prot: %02x\n",EXPREGS[5]);
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93 MMC3_CMDWrite(0x8000,V);
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94 FixMMC3PRG(MMC3_cmd);
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99 static uint8 prot_array[16] = { 0x83, 0x83, 0x42, 0x00 };
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100 static DECLFW(M121LoWrite)
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102 EXPREGS[4] = prot_array[V&3]; // 0x100 bit in address seems to be switch arrays 0, 2, 2, 3 (Contra Fighter)
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103 // FCEU_printf("write: %04x:%04x\n",A,V);
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106 static DECLFR(M121Read)
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108 // FCEU_printf("read: %04x->\n",A,EXPREGS[0]);
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112 static void M121Power(void)
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116 SetReadHandler(0x5000,0x5FFF,M121Read);
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117 SetWriteHandler(0x5000,0x5FFF,M121LoWrite);
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118 SetWriteHandler(0x8000,0x9FFF,M121Write);
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121 void Mapper121_Init(CartInfo *info)
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123 GenMMC3_Init(info, 128, 256, 8, 0);
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126 info->Power=M121Power;
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127 AddExState(EXPREGS, 8, 0, "EXPR");
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