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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
//
////////////////////////////////////////////////////////////////////////////////////////
#ifndef NST_FPUPRECISION_H
#define NST_FPUPRECISION_H
#include <cfloat>
#ifdef NST_PRAGMA_ONCE
#pragma once
#endif
namespace Nes
{
namespace Core
{
class FpuPrecision
{
#if defined(NST_WIN32) && defined(_MCW_PC) && defined(_PC_24) && defined(_PC_53)
const uint ctrl;
public:
FpuPrecision()
: ctrl(::_controlfp( 0, 0 ) & _MCW_PC)
{
if (ctrl == _PC_24)
::_controlfp( _PC_53, _MCW_PC );
}
~FpuPrecision()
{
if (ctrl == _PC_24)
::_controlfp( _PC_24, _MCW_PC );
}
#endif
};
}
}
#endif
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