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/////////////////////////////////////////////////////////////////////////

// $Id: fpu_emu.cc 10451 2011-07-06 20:01:18Z sshwarts $

/////////////////////////////////////////////////////////////////////////

//

//   Copyright (c) 2004-2011 Stanislav Shwartsman

//          Written by Stanislav Shwartsman [sshwarts at sourceforge net]

//

//  This library is free software; you can redistribute it and/or

//  modify it under the terms of the GNU Lesser General Public

//  License as published by the Free Software Foundation; either

//  version 2 of the License, or (at your option) any later version.

//

//  This library 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

//  Lesser General Public License for more details.

//

//  You should have received a copy of the GNU Lesser General Public

//  License along with this library; if not, write to the Free Software

//  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA B 02110-1301 USA

/////////////////////////////////////////////////////////////////////////

#define NEED_CPU_REG_SHORTCUTS 1

#include "bochs.h"

#include "cpu.h"

#define LOG_THIS BX_CPU_THIS_PTR

/* 9B */

BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::FWAIT(bxInstruction_c *i)

{

#if BX_SUPPORT_FPU

  if (BX_CPU_THIS_PTR cr0.get_TS() && BX_CPU_THIS_PTR cr0.get_MP())

    exception(BX_NM_EXCEPTION, 0);

  BX_CPU_THIS_PTR FPU_check_pending_exceptions();

  BX_NEXT_INSTR(i);

#endif

}

/* relevant only when FPU support is disabled */

#if BX_SUPPORT_FPU == 0

BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::FPU_ESC(bxInstruction_c *i)

{

  if (BX_CPU_THIS_PTR cr0.get_EM() || BX_CPU_THIS_PTR cr0.get_TS())

    exception(BX_NM_EXCEPTION, 0);

  BX_NEXT_INSTR(i);

}

#endif