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https://github.com/0ldsk00l/nestopia.git
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79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
////////////////////////////////////////////////////////////////////////////////////////
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//
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// Nestopia - NES/Famicom emulator written in C++
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//
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// Copyright (C) 2003-2008 Martin Freij
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//
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// This file is part of Nestopia.
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//
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// Nestopia is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// Nestopia is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Nestopia; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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////////////////////////////////////////////////////////////////////////////////////////
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#include "NstBoard.hpp"
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#include "NstBoardKonamiVrc1.hpp"
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namespace Nes
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{
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namespace Core
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{
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namespace Boards
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{
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namespace Konami
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{
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#ifdef NST_MSVC_OPTIMIZE
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#pragma optimize("s", on)
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#endif
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void Vrc1::SubReset(bool)
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{
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Map( 0x8000U, 0x8FFFU, PRG_SWAP_8K_0 );
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Map( 0x9000U, 0x9FFFU, &Vrc1::Poke_9000 );
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Map( 0xA000U, 0xAFFFU, PRG_SWAP_8K_1 );
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Map( 0xC000U, 0xCFFFU, PRG_SWAP_8K_2 );
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Map( 0xE000U, 0xEFFFU, &Vrc1::Poke_E000 );
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Map( 0xF000U, 0xFFFFU, &Vrc1::Poke_F000 );
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}
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#ifdef NST_MSVC_OPTIMIZE
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#pragma optimize("", on)
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#endif
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NES_POKE_D(Vrc1,9000)
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{
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ppu.SetMirroring( (data & 0x1) ? Ppu::NMT_H : Ppu::NMT_V );
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chr.SwapBanks<SIZE_4K,0x0000>
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(
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(data << 3 & 0x10) | (chr.GetBank<SIZE_4K,0x0000>() & 0xF),
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(data << 2 & 0x10) | (chr.GetBank<SIZE_4K,0x1000>() & 0xF)
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);
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}
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NES_POKE_D(Vrc1,E000)
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{
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ppu.Update();
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chr.SwapBank<SIZE_4K,0x0000>( (chr.GetBank<SIZE_4K,0x0000>() & 0x10) | (data & 0xF) );
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}
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NES_POKE_D(Vrc1,F000)
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{
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ppu.Update();
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chr.SwapBank<SIZE_4K,0x1000>( (chr.GetBank<SIZE_4K,0x1000>() & 0x10) | (data & 0xF) );
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}
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}
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}
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}
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}
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