49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id: fpu_emu.cc,v 1.6 2008-01-29 17:13:07 sshwarts Exp $
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2004 Stanislav Shwartsman
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// Written by Stanislav Shwartsman [sshwarts at sourceforge net]
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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/////////////////////////////////////////////////////////////////////////
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#define LOG_THIS BX_CPU_THIS_PTR
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#include "bochs.h"
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#include "cpu.h"
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#define LOG_THIS BX_CPU_THIS_PTR
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/* 9B */
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void BX_CPU_C::FWAIT(bxInstruction_c *i)
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{
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#if BX_SUPPORT_FPU
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if (BX_CPU_THIS_PTR cr0.get_TS() && BX_CPU_THIS_PTR cr0.get_MP())
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exception(BX_NM_EXCEPTION, 0, 0);
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BX_CPU_THIS_PTR FPU_check_pending_exceptions();
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#else
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BX_INFO(("FWAIT: requred FPU, use --enable-fpu"));
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#endif
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}
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/* relevant only when FPU support is disabled */
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#if BX_SUPPORT_FPU == 0
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void BX_CPU_C::FPU_ESC(bxInstruction_c *i)
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{
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if (BX_CPU_THIS_PTR cr0.get_EM() || BX_CPU_THIS_PTR cr0.get_TS())
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exception(BX_NM_EXCEPTION, 0, 0);
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}
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#endif
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