nestopia/source/core/board/NstBoardCamerica.cpp
2020-12-12 10:08:52 -05:00

113 lines
3 KiB
C++

////////////////////////////////////////////////////////////////////////////////////////
//
// 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 "NstBoardCamerica.hpp"
namespace Nes
{
namespace Core
{
namespace Boards
{
namespace Camerica
{
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("s", on)
#endif
void Bf9093::SubReset(bool)
{
Map( 0xC000U, 0xFFFFU, PRG_SWAP_16K_0 );
Map( 0x8000U, 0xBFFFU, &Bf9093::Poke_C000 );
}
void Bf9096::SubReset(bool)
{
Map( 0x8000U, 0xBFFFU, &Bf9096::Poke_8000 );
Map( 0xC000U, 0xFFFFU, &Bf9096::Poke_A000 );
}
void Bf9097::SubReset(const bool hard)
{
Bf9093::SubReset( hard );
Map( 0x8000U, 0x9FFFU, &Bf9097::Poke_8000 );
}
void GoldenFive::SubReset(const bool hard)
{
Map( 0x8000U, 0x9FFFU, &GoldenFive::Poke_8000 );
Map( 0xC000U, 0xFFFFU, &GoldenFive::Poke_C000 );
if (hard)
prg.SwapBank<SIZE_16K,0x4000>( 0x0F );
}
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("", on)
#endif
NES_POKE_D(Bf9093,C000)
{
prg.SwapBank<SIZE_16K,0x0000>( data );
}
void Bf9096::SwapBasePrg(uint base)
{
prg.SwapBanks<SIZE_16K,0x0000>( base | (prg.GetBank<SIZE_16K,0x0000>() & 0x3), base | 0x3 );
}
NES_POKE_D(Bf9096,8000)
{
SwapBasePrg( data >> 1 & 0xC );
}
NES_POKE_D(Bf9096,A000)
{
prg.SwapBank<SIZE_16K,0x0000>( (prg.GetBank<SIZE_16K,0x0000>() & 0xC) | (data & 0x3) );
}
NES_POKE_D(Bf9097,8000)
{
ppu.SetMirroring( (data & 0x10) ? Ppu::NMT_1 : Ppu::NMT_0 );
}
NES_POKE_D(GoldenFive,8000)
{
if (data & 0x8)
{
prg.SwapBank<SIZE_16K,0x0000>( (data << 4 & 0x70) | (prg.GetBank<SIZE_16K,0x0000>() & 0x0F) );
prg.SwapBank<SIZE_16K,0x4000>( (data << 4 & 0x70) | 0x0F );
}
}
NES_POKE_D(GoldenFive,C000)
{
prg.SwapBank<SIZE_16K,0x0000>( (prg.GetBank<SIZE_16K,0x0000>() & 0x70) | (data & 0x0F) );
}
}
}
}
}