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////////////////////////////////////////////////////////////////////////////////////////
//
// 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
//
////////////////////////////////////////////////////////////////////////////////////////
// Reference: https://github.com/TASVideos/fceux/blob/master/src/boards/156.cpp
#include "NstBoard.hpp"
#include "NstBoardOpenCorp.hpp"
namespace Nes
{
namespace Core
{
namespace Boards
{
namespace OpenCorp
{
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("s", on)
#endif
void Daou306::RemapChr()
{
chr.SwapBank<SIZE_1K>( 0x0000, (chrHigh[0] << 8) | chrLow[0] );
chr.SwapBank<SIZE_1K>( 0x0400, (chrHigh[1] << 8) | chrLow[1] );
chr.SwapBank<SIZE_1K>( 0x0800, (chrHigh[2] << 8) | chrLow[2] );
chr.SwapBank<SIZE_1K>( 0x0C00, (chrHigh[3] << 8) | chrLow[3] );
chr.SwapBank<SIZE_1K>( 0x1000, (chrHigh[4] << 8) | chrLow[4] );
chr.SwapBank<SIZE_1K>( 0x1400, (chrHigh[5] << 8) | chrLow[5] );
chr.SwapBank<SIZE_1K>( 0x1800, (chrHigh[6] << 8) | chrLow[6] );
chr.SwapBank<SIZE_1K>( 0x1C00, (chrHigh[7] << 8) | chrLow[7] );
if (mirrorUsed) {
ppu.SetMirroring( mirror ^ 0x1 ? Ppu::NMT_V : Ppu::NMT_H );
}
else
{
ppu.SetMirroring( Ppu::NMT_0 );
}
}
void Daou306::SubReset(bool)
{
for (uint i = 0; i < 8; i++)
{
chrLow[i] = chrHigh[i] = 0;
}
Map( 0xC000U, 0xC00FU, &Daou306::Poke_C000 );
Map( 0xC010U, PRG_SWAP_16K_0 );
Map( 0xC014U, &Daou306::Poke_C014 );
}
NES_POKE_AD(Daou306,C000)
{
switch (address)
{
case 0xC000:
case 0xC001:
case 0xC002:
case 0xC003:
chrLow[address & 0x03] = data;
break;
case 0xC004:
case 0xC005:
case 0xC006:
case 0xC007:
chrHigh[address & 0x03] = data;
break;
case 0xC008:
case 0xC009:
case 0xC00A:
case 0xC00B:
chrLow[4 + (address & 0x03)] = data;
break;
case 0xC00C:
case 0xC00D:
case 0xC00E:
case 0xC00F:
chrHigh[4 + (address & 0x03)] = data;
break;
}
RemapChr();
}
NES_POKE_D(Daou306,C014)
{
mirror = data;
mirrorUsed = 1;
}
void Daou306::SubLoad(State::Loader& state,const dword baseChunk)
{
NST_VERIFY( baseChunk == (AsciiId<'O','P','C'>::V) );
if (baseChunk == AsciiId<'O','P','C'>::V)
{
state.Begin();
State::Loader::Data<18> data( state );
chrLow[0] = data[0];
chrLow[1] = data[1];
chrLow[2] = data[2];
chrLow[3] = data[3];
chrLow[4] = data[4];
chrLow[5] = data[5];
chrLow[6] = data[6];
chrLow[7] = data[7];
chrHigh[0] = data[8];
chrHigh[1] = data[9];
chrHigh[2] = data[10];
chrHigh[3] = data[11];
chrHigh[4] = data[12];
chrHigh[5] = data[13];
chrHigh[6] = data[14];
chrHigh[7] = data[15];
mirror = data[16];
mirrorUsed = data[17];
state.End();
RemapChr();
}
}
void Daou306::SubSave(State::Saver& state) const
{
state.Begin( AsciiId<'O','P','C'>::V );
const byte data[18] =
{
chrLow[0],
chrLow[1],
chrLow[2],
chrLow[3],
chrLow[4],
chrLow[5],
chrLow[6],
chrLow[7],
chrHigh[0],
chrHigh[1],
chrHigh[2],
chrHigh[3],
chrHigh[4],
chrHigh[5],
chrHigh[6],
chrHigh[7],
mirror,
mirrorUsed,
};
state.Begin( AsciiId<'C','H','R'>::V ).Write( data ).End();
state.End();
}
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("", on)
#endif
}
}
}
}
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