1 /* FCE Ultra - NES/Famicom Emulator
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3 * Copyright notice for this file:
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4 * Copyright (C) 2007 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 * Dance 2000 12-in-1
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26 static uint8 prg, mirr, prgmode;
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27 static uint8 *WRAM=NULL;
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28 static uint32 WRAMSIZE;
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30 static SFORMAT StateRegs[]=
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34 {&prgmode, 1, "MIRR"},
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38 static void Sync(void)
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41 setprg8r(0x10,0x6000,0);
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44 setprg32(0x8000,prg&7);
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46 setprg16(0x8000,prg&0x0f);
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51 static DECLFW(UNLD2000Write)
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53 // FCEU_printf("write %04x:%04x\n",A,V);
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55 case 0x5000: prg = V; Sync(); break;
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56 case 0x5200: mirr = (V & 1)^1; prgmode = V & 4; Sync(); break;
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57 // default: FCEU_printf("write %04x:%04x\n",A,V);
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61 static DECLFR(UNLD2000Read)
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69 static void UNLD2000Power(void)
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73 SetReadHandler(0x6000,0x7FFF,CartBR);
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74 SetWriteHandler(0x6000,0x7FFF,CartBW);
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75 SetReadHandler(0x8000,0xFFFF,UNLD2000Read);
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76 SetWriteHandler(0x4020,0x5FFF,UNLD2000Write);
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79 static void UNLAX5705IRQ(void)
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81 if(scanline > 174) setchr4(0x0000,1);
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82 else setchr4(0x0000,0);
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85 static void UNLD2000Close(void)
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93 static void StateRestore(int version)
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98 void UNLD2000_Init(CartInfo *info)
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100 info->Power=UNLD2000Power;
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101 info->Close=UNLD2000Close;
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102 GameHBIRQHook=UNLAX5705IRQ;
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103 GameStateRestore=StateRestore;
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106 WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);
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107 SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);
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108 AddExState(WRAM, WRAMSIZE, 0, "WRAM");
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110 AddExState(&StateRegs, ~0, 0, 0);
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