53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program 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
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef FPU_ROUND_MODE_H_
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#define FPU_ROUND_MODE_H_
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#include "CommonTypes.h"
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namespace FPURoundMode
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{
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enum RoundModes
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{
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ROUND_NEAR = 0,
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ROUND_CHOP,
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ROUND_UP,
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ROUND_DOWN
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};
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enum PrecisionModes {
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PREC_24 = 0,
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PREC_53,
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PREC_64
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};
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void SetRoundMode(u32 mode);
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void SetPrecisionMode(u32 mode);
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void SetSIMDMode(u32 roundingMode, u32 nonIEEEMode);
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/*
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* There are two different flavors of float to int conversion:
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* _mm_cvtps_epi32() and _mm_cvttps_epi32().
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*
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* The first rounds according to the MXCSR rounding bits.
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* The second one always uses round towards zero.
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*/
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void SaveSIMDState();
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void LoadSIMDState();
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void LoadDefaultSIMDState();
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}
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#endif
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