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72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is the Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Andreas Gal <gal@uci.edu>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || defined(__i386) || defined(__amd64__)
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/*
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* x87 FPU Control Word:
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*
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* 0 -> IM Invalid Operation
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* 1 -> DM Denormalized Operand
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* 2 -> ZM Zero Divide
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* 3 -> OM Overflow
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* 4 -> UM Underflow
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* 5 -> PM Precision
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*/
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#define FPU_EXCEPTION_MASK 0x3f
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/*
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* x86 FPU Status Word:
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*
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* 0..5 -> Exception flags (see x86 FPU Control Word)
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* 6 -> SF Stack Fault
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* 7 -> ES Error Summary Status
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*/
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#define FPU_STATUS_FLAGS 0xff
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/*
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* MXCSR Control and Status Register:
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*
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* 0..5 -> Exception flags (see x86 FPU Control Word)
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* 6 -> DAZ Denormals Are Zero
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* 7..12 -> Exception mask (see x86 FPU Control Word)
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*/
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#define SSE_STATUS_FLAGS FPU_EXCEPTION_MASK
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#define SSE_EXCEPTION_MASK (FPU_EXCEPTION_MASK << 7)
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#endif
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