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