Santa Barbara, CA. March 21, 2001 -- Green Hills Software, Inc., a leading supplier of embedded software solutions, today announced that it has joined the Rational Unified Partner Program (RUPP). As a RUPP Technology Partner, Green Hills has integrated its MULTI software development environment and real-time operating systems with Rational Software's UML-based Rational Rose RealTime design tool and Rational ClearCase source code control system. The integrated solution will greatly simplify the development and deployment of complex embedded applications.

"We look forward to working with Rational as a RUPP member," said John Carbone, Green Hills' vice president of marketing. "Over the coming months, we will work with Rational to create an end-to-end solution for developing and deploying sophisticated embedded applications that encompass Rational's Rose RealTime and ClearCase tools, and Green Hills' MULTI IDE, INTEGRITY and the ThreadX RTOSes."

"Green Hills makes a valuable addition to the Rational Unified Partner Program," said David Abelow, Director of Alliance Marketing, Rational Software. "The MULTI IDE provides an ideal development platform for debugging and deploying Rose RealTime applications utilizing C/C++ code. And the INTEGRITY and ThreadX RTOSes provide ideal run-time platforms for deploying that code in both deeply embedded and mission critical target systems. We look forward to working with Green Hills to provide a seamless link between our products that benefits our mutual customers."

As an RUPP Technology Partner, Green Hills is working with Rational to provide an end-to-end embedded software development and target platform that encompasses visual application development, C/C++ code debugging and optimization, project management, and deployment on target systems under the INTEGRITY and ThreadX real-time operating systems.

Rational Rose RealTime is a comprehensive visual development environment that makes it easy to conceptualize and structure complex applications while reducing the need to write C code. Through the industry standard UML, real-time design constructs, code generation, and model execution, Rose RealTime addresses the complete project lifecycle, from early use case analysis, through design, implementation, and testing. Rose RealTime automatically generates C or C++ code to perform the functions that designers specify in their UML diagrams.

The MULTI 2000 IDE and Green Hills C/C++ compiler make it easy to convert UML based Rose RealTime applications into optimized, error-free production code for a variety of high-performance microprocessors, including those from Motorola, MIPS, Infineon, Toshiba, and Hitachi. Featuring a window-oriented editor, RTOS-aware source-level debugger, and graphical program builder. MULTI 2000 also includes a run-time error checker, version control system, and performance profiler, as well as an instruction set simulator that allows programmers to develop and test their code on a PC or workstation without the need for the target hardware.

Green Hills INTEGRITY and the ThreadX RTOSes provide a run-time environment for hosting embedded applications developed using RoseRT and MULTI. INTEGRITY employs a memory-protected architecture optimized for mission-critical applications like telecommunications and aerospace. ThreadX employs a picokernel design whose high-speed context switching, fast interrupt response, and miniature footprint make it ideal for deeply embedded applications.

About the Rational Unified Partner Program

Rational Software Corporation, the e-development company, helps organizations develop and deploy software for e-business, e-infrastructure, and e-devices through a combination of tools, services and software engineering best practices. The Rational Unified Partner Program supports over 400 participating partners with tools, joint marketing opportunities, qualifications and training, and ensures that their products and services meet the high standards that customers have come to expect from Rational. The Rational Unified Partner Program extends Rational's e-development solution, providing extended product and service offerings, further enabling Rational customers to build Internet software faster with higher quality. Companies and individual technology consultants interested in learning more about the Rational Unified Partner Program, including details on how to participate, can visit www.rational.com.

More on Green Hills Software, Inc.

Incorporated in 1982, Green Hills Software, Inc., is a leading supplier of royalty-free Real-Time Operating Systems (RTOS) and software development tools for 32- and 64-bit embedded systems. Green Hills' royalty-free ThreadX(r) and INTEGRITY(tm) real-time operating systems, fully integrated with its market leading compilers and MULTI(r) Integrated Development Environment (IDE), provide a total development and run-time solution that addresses both deeply embedded and maximum reliability applications. Green Hills Software is headquartered in Santa Barbara, CA, with international headquarters in the United Kingdom. For more information on Green Hills Software products, please call 1-805-965-6044 or email inquiries to sales@ghs.com.

Green Hills Software, and MULTI are registered trademarks and INTEGRITY is a trademark of Green Hills Software, Inc. Other trademarks are trademarks (registered or otherwise) of the respective trademark owners.