1 /* FCE Ultra - NES/Famicom Emulator
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3 * Copyright notice for this file:
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4 * Copyright (C) 2012 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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23 static uint8 reg[8];
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25 static int16 IRQCount, IRQLatch;
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27 static uint8 *WRAM=NULL;
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28 static uint32 WRAMSIZE;
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29 static uint8 *CHRRAM=NULL;
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30 static uint32 CHRRAMSIZE;
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33 static SFORMAT StateRegs[]=
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37 {&IRQCount, 2, "IRQC"},
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38 {&IRQLatch, 2, "IRQL"},
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42 static void Sync(void)
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46 static DECLFW(MNNNWrite)
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50 static void MNNNPower(void)
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52 // SetReadHandler(0x6000,0x7fff,CartBR);
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53 // SetWriteHandler(0x6000,0x7fff,CartBW);
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54 SetReadHandler(0x8000,0xFFFF,CartBR);
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55 SetWriteHandler(0x8000,0xFFFF,MNNNWrite);
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58 static void MNNNReset(void)
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63 static void MNNNClose(void)
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73 static void MNNNIRQHook()
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75 X6502_IRQBegin(FCEU_IQEXT);
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78 static void StateRestore(int version)
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83 void MapperNNN_Init(CartInfo *info)
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85 info->Reset=MNNNReset;
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86 info->Power=MNNNPower;
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87 // info->Close=MNNNClose;
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88 GameHBIRQHook=MNNNIRQHook;
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89 GameStateRestore=StateRestore;
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92 CHRRAM=(uint8*)FCEU_gmalloc(CHRRAMSIZE);
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93 SetupCartCHRMapping(0x10,CHRRAM,CHRRAMSIZE,1);
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94 AddExState(CHRRAM, CHRRAMSIZE, 0, "CRAM");
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98 WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);
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99 SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);
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100 AddExState(WRAM, WRAMSIZE, 0, "WRAM");
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103 info->SaveGame[0]=WRAM;
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104 info->SaveGameLen[0]=WRAMSIZE;
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107 AddExState(&StateRegs, ~0, 0, 0);
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