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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
//
////////////////////////////////////////////////////////////////////////////////////////
#include "../NstMachine.hpp"
#include "../NstDipSwitches.hpp"
#include "../NstImage.hpp"
#include "NstApiDipSwitches.hpp"
namespace Nes
{
namespace Api
{
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("s", on)
#endif
Core::DipSwitches* DipSwitches::Query() const
{
if (emulator.image)
{
if (Core::Image::ExternalDevice device = emulator.image->QueryExternalDevice( Core::Image::EXT_DIP_SWITCHES ))
return static_cast<Core::DipSwitches*>(device);
}
return NULL;
}
bool DipSwitches::CanModify() const throw()
{
return !emulator.tracker.IsLocked() && Query();
}
uint DipSwitches::NumDips() const throw()
{
if (Core::DipSwitches* const dipSwitches = Query())
return dipSwitches->NumDips();
return 0;
}
uint DipSwitches::NumValues(uint dip) const throw()
{
if (Core::DipSwitches* const dipSwitches = Query())
{
if (dipSwitches->NumDips() > dip)
return dipSwitches->NumValues( dip );
}
return 0;
}
const char* DipSwitches::GetDipName(uint dip) const throw()
{
if (Core::DipSwitches* const dipSwitches = Query())
{
if (dipSwitches->NumDips() > dip)
return dipSwitches->GetDipName( dip );
}
return NULL;
}
const char* DipSwitches::GetValueName(uint dip,uint value) const throw()
{
if (Core::DipSwitches* const dipSwitches = Query())
{
if (dipSwitches->NumDips() > dip && dipSwitches->NumValues( dip ) > value)
return dipSwitches->GetValueName( dip, value );
}
return NULL;
}
int DipSwitches::GetValue(uint dip) const throw()
{
if (Core::DipSwitches* const dipSwitches = Query())
{
if (dipSwitches->NumDips() > dip)
return dipSwitches->GetValue( dip );
}
return INVALID;
}
Result DipSwitches::SetValue(uint dip,uint value) throw()
{
if (!emulator.tracker.IsLocked())
{
if (Core::DipSwitches* const dipSwitches = Query())
{
if (dip >= dipSwitches->NumDips() || value >= dipSwitches->NumValues( dip ))
{
return RESULT_ERR_INVALID_PARAM;
}
else if (value != dipSwitches->GetValue( dip ))
{
emulator.tracker.Resync();
dipSwitches->SetValue( dip, value );
return RESULT_OK;
}
else
{
return RESULT_NOP;
}
}
}
return RESULT_ERR_NOT_READY;
}
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("", on)
#endif
}
}
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