//////////////////////////////////////////////////////////////////////////////////////// // // 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 "NstBoardKasing.hpp" namespace Nes { namespace Core { namespace Boards { namespace Kasing { void Standard::SubReset(const bool hard) { if (hard) { exRegs[0] = 0; exRegs[1] = 0; } Mmc3::SubReset( hard ); Map( 0x6000U, &Standard::Poke_6000 ); Map( 0x6001U, &Standard::Poke_6001 ); } void Standard::SubLoad(State::Loader& state,const dword baseChunk) { if (baseChunk == AsciiId<'K','A','S'>::V) { while (const dword chunk = state.Begin()) { if (chunk == AsciiId<'R','E','G'>::V) { State::Loader::Data<2> data( state ); exRegs[0] = data[0]; exRegs[1] = data[1]; } state.End(); } } else { Mmc3::SubLoad( state, baseChunk ); } } void Standard::SubSave(State::Saver& state) const { Mmc3::SubSave( state ); const byte data[2] = { exRegs[0], exRegs[1] }; state.Begin( AsciiId<'K','A','S'>::V ).Begin( AsciiId<'R','E','G'>::V ).Write( data ).End().End(); } #ifdef NST_MSVC_OPTIMIZE #pragma optimize("", on) #endif void NST_FASTCALL Standard::UpdatePrg(uint address,uint bank) { if (exRegs[0] & 0x80) prg.SwapBank( exRegs[0] >> 1 ); else Mmc3::UpdatePrg( address, bank ); } void NST_FASTCALL Standard::UpdateChr(uint address,uint bank) const { chr.SwapBank( address, (exRegs[1] << 8 & 0x100) | bank ); } NES_POKE_D(Standard,6000) { if (exRegs[0] != data) { exRegs[0] = data; Mmc3::UpdatePrg(); } } NES_POKE_D(Standard,6001) { if (exRegs[1] != data) { exRegs[1] = data; Mmc3::UpdateChr(); } } } } } }