//////////////////////////////////////////////////////////////////////////////////////// // // Nestopia - NES/Famicom emulator written in C++ // // Copyright (C) 2003-2008 Martin Freij // // This file is part of Nestopia. // // Nestopia is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // Nestopia is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Nestopia; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // //////////////////////////////////////////////////////////////////////////////////////// #include "NstBoard.hpp" #include "NstBoardMmc3.hpp" #include "NstBoardKay.hpp" namespace Nes { namespace Core { namespace Boards { namespace Kay { #ifdef NST_MSVC_OPTIMIZE #pragma optimize("s", on) #endif void PandaPrince::SubReset(const bool hard) { exRegs[0] = 0; exRegs[1] = 0; exRegs[2] = 0; Mmc3::SubReset( hard ); Map( 0x5000U, 0x5FFFU, &PandaPrince::Peek_5000, &PandaPrince::Poke_5000 ); Map( 0x8000U, 0x9FFFU, &PandaPrince::Poke_8000 ); } void PandaPrince::SubLoad(State::Loader& state,const dword baseChunk) { if (baseChunk == AsciiId<'K','P','P'>::V) { while (const dword chunk = state.Begin()) { if (chunk == AsciiId<'R','E','G'>::V) { State::Loader::Data<3> data( state ); exRegs[0] = data[0]; exRegs[1] = data[1]; exRegs[2] = data[2]; } state.End(); } } else { Mmc3::SubLoad( state, baseChunk ); } } void PandaPrince::SubSave(State::Saver& state) const { Mmc3::SubSave( state ); const byte data[] = { exRegs[0], exRegs[1], exRegs[2] }; state.Begin( AsciiId<'K','P','P'>::V ).Begin( AsciiId<'R','E','G'>::V ).Write( data ).End().End(); } #ifdef NST_MSVC_OPTIMIZE #pragma optimize("", on) #endif void NST_FASTCALL PandaPrince::UpdatePrg(uint address,uint bank) { if (address == 0x4000) { if (exRegs[0]) bank = exRegs[0]; } else if (address == 0x6000) { if (exRegs[1]) bank = exRegs[1]; } prg.SwapBank( address, bank ); } NES_PEEK(PandaPrince,5000) { return exRegs[2]; } NES_POKE_D(PandaPrince,5000) { static const byte lut[] = { 0x00, 0x83, 0x42, 0x00 }; exRegs[2] = lut[data & 0x3]; } NES_POKE_AD(PandaPrince,8000) { if ((address & 0x3) == 0x3) { switch (data) { case 0x28: exRegs[0] = 0x0C; break; case 0x26: exRegs[1] = 0x08; break; case 0xAB: exRegs[1] = 0x07; break; case 0xEC: exRegs[1] = 0x0D; break; case 0xEF: exRegs[1] = 0x0D; break; case 0xFF: exRegs[1] = 0x09; break; case 0x20: exRegs[1] = 0x13; break; case 0x29: exRegs[1] = 0x1B; break; default: exRegs[0] = 0x0; exRegs[1] = 0x0; break; } } else if (address & 0x1) { Mmc3::NES_DO_POKE(8001,address,data); } else { Mmc3::NES_DO_POKE(8000,address,data); } Mmc3::UpdatePrg(); } } } } }