Green Hills Helps JPL go to Mars

http://www.ghs.com/news/230811j.html

Green Hills Helps JPL go to Mars

Software Tools Critical to Mars Rover Missions

Green Hills Software, Inc. Press Release
August 11, 2003

SANTA BARBARA, CA - Green Hills Software, Inc., today
announced that all the flight software aboard the two Mars Exploration Rover
missions was written by engineers from NASA's Jet Propulsion Laboratory (JPL)
using software development tools from Green Hills Software. Both the
"Opportunity" rover, launched July 7, and the "Spirit" rover, launched June 10,
are being directed and controlled by software programs and systems written with
the use of Green Hills development tools.

"The two Mars rovers are essentially very sturdy, complex computers," says [jpl]
David Kleidermacher, vice-president of engineering at Green Hills. "And
like every computer, they need specific software programs to tell them how to
perform all the complex functions of space flight, landing and operation on the
surface of Mars. The Green Hills tools are the building blocks for those
software programs."

JPL engineers faced a number of unique challenges when building the hardware and
software for the two Mars rovers. They utilized the expertise of Green Hills'
engineers to help them rebuild the rovers' entire operating system software with
one set of software tools. "Our engineers were able to provide JPL with the
right products and professional knowledge--two elements that were critical to
the success of their Mars missions," said Kleidermacher.

On-the-Fly Software Upgrade

The Mars rover "Spirit" is scheduled to land on the red planet January 3, 2004,
with the "Opportunity" rover set for a January 24, 2004 landing. Between now and
then, JPL engineers, with the help of Green Hills Software's products, will
build a new version of software to be uplinked to the Mars-bound rovers. This
updated software will direct the two rovers to their precise landing targets on
Mars and enable them to carry out their complex scientific mission once they
arrive.

About Green Hills Software

Founded in 1982, Green Hills Software, Inc. is the technology leader for
real-time operating systems and software development tools for 32- and 64-bit
embedded systems. The royalty-free INTEGRITY RTOS, compilers, MULTI and AdaMULTI
Integrated Development Environments and Green Hills Probe product line offer a
complete development solution that addresses embedded systems from the lowest
cost consumer products to the most safety critical aircraft flight systems.
Green Hills Software is headquartered in Santa Barbara, CA with European
headquarters in the United Kingdom.

Green Hills Software, the Green Hills logo, MULTI and INTEGRITY are registered
trademarks. AdaMULTI is a trademark of Green Hills Software, Inc. All other
trademarks (registered or otherwise) are the property of their respective
companies. Brand or product names are registered trademarks or trademarks of
their respective holders.

North American Sales Contact: Green Hills Software, Inc., 30 West Sola Street,
Santa Barbara, CA 93101, Tel: 805-965-6044, Fax: 805-965-6343, Website:
www.ghs.com, Email: .

International Sales Contact: Green Hills Software Ltd., Dolphin House, St. Peter
Street, Winchester Hampshire SO23 8BW, United Kingdom, Tel: +44 (0)1962 829820,
Fax: +44 (0)1962 890300, Email: .

Media Contacts:

Green Hills Software, Inc. Patterson & Associates
Lynn J. Robinson Barbara Stewart
(805) 965-6044 (480) 488-6909