# eCos Reference Manual

Copyright © 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.

Documentation licensing terms

This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/).

Distribution of substantively modified versions of this document is prohibited without the explicit permission of the copyright holder.

Distribution of the work or derivative of the work in any standard (paper) book form is prohibited unless prior permission is obtained from the copyright holder.

Trademarks

Altera® and Excalibur™ are trademarks of Altera Corporation.

AMD® is a registered trademark of Advanced Micro Devices, Inc.

ARM®, StrongARM®, Thumb®, ARM7™, ARM9™ is a registered trademark of Advanced RISC Machines, Ltd.

Cirrus Logic® and Maverick™ are registered trademarks of Cirrus Logic, Inc.

Cogent™ is a trademark of Cogent Computer Systems, Inc.

Compaq® is a registered trademark of the Compaq Computer Corporation.

Fujitsu® is a registered trademark of Fujitsu Limited.

IBM®, and PowerPC™ are trademarks of International Business Machines Corporation.

IDT® is a registered trademark of Integrated Device Technology Inc.

Intel®, i386™, Pentium®, StrataFlash® and XScale™ are trademarks of Intel Corporation.

Intrinsyc® and Cerf™ are trademarks of Intrinsyc Software, Inc.

Linux® is a registered trademark of Linus Torvalds.

Matsushita™ and Panasonic® are trademarks of the Matsushita Electric Industrial Corporation.

Microsoft®, Windows®, Windows NT® and Windows XP® are registered trademarks of Microsoft Corporation, Inc.

MIPS®, MIPS32™ MIPS64™, 4K™, 5K™ Atlas™ and Malta™ are trademarks of MIPS Technologies, Inc.

Motorola®, ColdFire® is a trademark of Motorola, Inc.

NEC® V800™, V850™, V850/SA1™, V850/SB1™, VR4300™, and VRC4375™ are trademarks of NEC Corporation.

PMC-Sierra® RM7000™ and Ocelot™ are trademarks of PMC-Sierra Incorporated.

Red Hat, eCos™, RedBoot™, GNUPro®, and Insight™ are trademarks of Red Hat, Inc.

Samsung® and CalmRISC™ are trademarks or registered trademarks of Samsung, Inc.

Sharp® is a registered trademark of Sharp Electronics Corp.

SPARC® is a registered trademark of SPARC International, Inc., and is used under license by Sun Microsystems, Inc.

Sun Microsystems® and Solaris® are registered trademarks of Sun Microsystems, Inc.

SuperH™ and Renesas™ are trademarks owned by Renesas Technology Corp.

Texas Instruments®, OMAP™ and Innovator™ are trademarks of Texas Instruments Incorporated.

Toshiba® is a registered trademark of the Toshiba Corporation.

UNIX® is a registered trademark of The Open Group.

All other brand and product names, trademarks, and copyrights are the property of their respective owners.

Warranty

eCos and RedBoot are open source software, covered by a modified version of the GNU General Public Licence, and you are welcome to change it and/or distribute copies of it under certain conditions. See http://ecos.sourceware.org/license-overview.html for more information about the license.

eCos and RedBoot software have NO WARRANTY.

Because this software is licensed free of charge, there are no warranties for it, to the extent permitted by applicable law. Except when otherwise stated in writing, the copyright holders and/or other parties provide the software “as is” without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The entire risk as to the quality and performance of the software is with you. Should the software prove defective, you assume the cost of all necessary servicing, repair or correction.

In no event, unless required by applicable law or agreed to in writing, will any copyright holder, or any other party who may modify and/or redistribute the program as permitted above, be liable to you for damages, including any general, special, incidental or consequential damages arising out of the use or inability to use the program (including but not limited to loss of data or data being rendered inaccurate or losses sustained by you or third parties or a failure of the program to operate with any other programs), even if such holder or other party has been advised of the possibility of such damages.

List of Tables
8-1. Behavior of math exception handling

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