SMART NETWORKS DEVELOPER FORUM, NEW ORLEANS - May 21, 2001 -- Green Hills Software and Motorola (NYSE:MOT) today announced their plans for an Alliance for Product Technology (APT). The multi-year initiative is expected to enable faster time to market for customers that purchase StarCore®-based digital signal processors from Motorola by allowing them to begin development with optimized tools as soon as first silicon for new processors becomes available.

Through the APT, Motorola and Green Hills plan to create integrated solutions for customers. In tight collaboration with Motorola, Green Hills intends to develop, market, and distribute advanced software development tools for Motorola's high-performance StarCore-based DSPs. Green Hills will integrate leading real-time operating systems (RTOS), such as Enea OSE and Lineo RTXC, with optimized versions of its MULTI 2000 Integrated Development Environment, compilers, operating systems, visualization tools, and communications software for Motorola's line of StarCore-based DSPs and boards. Green Hills will also provide pre- and post-sales technical support to Motorola customers. The first Motorola products to be supported through the APT will be the network-ready MSC8101 DSP and the MSC8102 DSP, using the Application Development System (ADS).

"This alliance takes the close relationship we already enjoy with Motorola to the next level," said Dan O'Dowd, president of Green Hills. "We look forward to working with Motorola to develop leading edge software tools and operating environments that enable developers to take advantage of new processors at the earliest possible moment. Our expertise with high-performance CISC/RISC CPUs and DSPs makes us uniquely positioned to deliver easy-to-use IDEs, vectorizing compilers, real-time operating systems, and other tools that fully exploit the advanced RISC and signal processing capabilities of the StarCore architecture."

"Our relationship with Green Hills demonstrates Motorola's commitment to building strong alliances with valued third parties as a crucial element in delivering Smart Networks Platform solutions, simplifying development, and accelerating time to market for our customers," said Daniel Artusi, corporate vice president and general manager of Motorola's Networking and Computing Systems Group. "Through the alliance, we expect to provide our customers a more comprehensive hardware and software solution earlier in the processor product life cycle, enabling them to begin their development with early silicon."

"The alliance enables Motorola and Green Hills to deliver optimized solutions to customers, not just point products," added Will Strauss, president of Forward Concepts. "This agreement combines the advanced processing capabilities of Motorola's StarCore-based processor family with the advanced development capabilities of Green Hills' tools in a way that enables both companies to offer integrated best-in-class computing solutions to the embedded communications industry."

The StarCore SC100 is a scaleable 16-bit data/32-bit address architecture that can be configured with a variable number of MACs and ALUs. The first implementation of the StarCore SC100 architecture, known as the SC140, features four parallel execution units that can each independently perform a Multiply Accumulate (MAC), arithmetic operation, or bit field manipulation operation in a single 300 MHz clock cycle. This delivers peak performance of 1200 million MACs (MMACs) or 3000 RISC MIPS.

The MSC8101 combines this 300 MHz SC140 core with a 32-bit, 150 MHz RISC Communications Processor Module (CPM), 512 kbytes of SRAM, 100 MHz 32- or 64-bit PowerPC™ 60X bus, and a 300 MHz Enhanced Filter Coprocessor (EFCOP). The second generation MSC8102 combines four 300 MHz SC140 cores with four 300 MHz EFCOPs, master and slave PowerPC buses, four high-speed TDM interfaces and 11.4 Mbits of memory. The integrated LAN and WAN protocol processing facilities make them ideal for compute-intensive communications applications like third-generation wireless infrastructure systems, packet telephony systems, multi-channel modem banks, and multi-channel xDSL systems.

The MULTI® 2000 IDE automates all aspects of software development for StarCore-based processors from Motorola. Optimized for the SC100 architecture, the MULTI IDE features a window-oriented editor, an RTOS-aware source-level multiprocessor debugger with support for multiple cores, a graphical program builder, a run-time error checker, a version control system, and a performance profiler. MULTI also features an instruction set simulator (Simsc) that allows programmers to develop and test SC100 code on a PC or workstation without the need for the target hardware. The MULTI 2000 IDE features a highly advanced StarCore C/C++ optimizing compiler. With more than 100 advanced performance and efficiency optimizations, the scaleable C/C++ compiler automatically partitions C programs for optimal execution on the SC100's MAC, ALU, and BFU processing units.

About Green Hills Software

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® and INTEGRITY® real-time operating systems, fully integrate with its market leading compilers and MULTI® Integrated Development Environment (IDE), providing 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 805-965-6044 or email inquiries to sales@ghs.com.

About Motorola's Smart Networks Platform

Motorola's Smart Networks Platform provides a single solution for developing networking applications from SOHO to access to edge to core. It combines sophisticated hardware, standard networking software, critical alliances, and a comprehensive development environment that together help to reduce development time from years to a matter of months. Additional information can be found at http://www.motorola.com/smartnetworks

About SNDF

Focusing on education, collaboration, and information-gathering, Motorola's Smart Networks Developer Forum is a premier gathering of the world's leading technologists representing Motorola and the best-in-class strategic, development, and implementation partners contributing to the Smart Networks Platform. The conference provides in-depth information about products and solutions from the Smart Networks Alliance and Motorola that enable hardware and software developers to build totally programmable, upgradeable networking systems from SOHO to access to edge to core. Visit http://www.motorola.com/sndf for more information.

About Motorola

As the world's #1 producer of embedded processors, Motorola's Semiconductor Products Sector offers multiple DigitalDNA™ technologies which enable its customers to create "smart" products and new business opportunities in the networking and computing, wireless communications, transportation, and home networking markets. Motorola's worldwide semiconductor sales were $7.9 billion (USD) in 2000. http://www.motorola.com/semiconductors/ Motorola, Inc. (NYSE:MOT) is a global leader in providing integrated communications and embedded electronic solutions. Sales in 2000 were $37.6 billion. http://www.motorola.com

MOTOROLA, the Stylized M Logo and all other trademarks indicated as such herein are trademarks of Motorola, Inc. ® Reg. U.S. Pat. & Tm. Off. PowerPC is a trademark of International Business Machines Corporation and used by Motorola, Inc. under license. All other product or service names are the property of their respective owners. ® 2001 Motorola, Inc. All rights reserved. Printed in the U.S.A

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.