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Green Hills Software's MULTI® Integrated Development Environment And Optimizing Compiler Available For LSI Logic's ZSP Digital Signal Processors

Santa Barbara, CA. February 19, 2002 -- Green Hills Software today announced the availability of its MULTI Integrated Development Environment (IDE) and optimizing compilers for LSI Logic's ZSP™ digital signal processors. MULTI, together with Green Hills' optimizing compilers, automates all aspects of embedded software development for ZSP processors, while producing the industry's fastest, most compact ZSP code. Available to ZSP developers free of charge on a 30-day trial basis, MULTI is ideal for developing embedded software for multiprocessor systems that combine one or more ZSPs with ARM, MIPS, or PowerPC host controllers.

"As high-performance DSPs like the ZSP run increasingly sophisticated signal processing applications, easy-to-use development tools like MULTI are becoming indispensable for maximizing programmer productivity," said Tuan Dao, Vice President of LSI Logic's DSP Products Division. "The MULTI IDE, together with Green Hills' compilers, make it easy for our customers to quickly deploy complex applications that take full advantage of the ZSP's high-performance superscalar capabilities."

LSI Logic ZSP "The ZSP is a very advanced DSP, employing an orthogonal instruction set and superscalar design that enables designers to maximize performance and code density without having to master complex VLIW instruction sets," said John Carbone, vice president of marketing at Green Hills. "MULTI® and our optimizing compilers take ZSP programmer productivity to a new high. Designers are able to achieve stellar performance and power savings while programming in a high-level language with full debug support."

The ZSP400 is a family of high-performance, synthesizeable, 16-bit, superscalar DSP cores. Featuring a peak performance of 800 MIPS at 200 MHz, ZSP400 cores can execute 400 million multiply-accumulate operations per second. ZSP cores come equipped with two 16 x 16 multiply-accumulate units, two 40-bit accumulators, and up to one Mword of on-chip memory. ZSP cores can also be embedded with ARM, MIPS, and other host processors, together with memory, LAN and WAN interfaces on a single device to produce a complete system on a chip.

MULTI greatly simplifies the development and production of fast, compact code for the ZSP core, including multiple cores integrated on the same chip. Featuring a window-oriented editor, ZSP-optimized source-level debugger, graphical program builder, project manager, and run-time error checker, MULTI also includes a version control system, performance profiler, and real-time EventAnalyzer™. MULTI also features an instruction set simulator, is fully integrated with LSI's own cycle-accurate simulator, and supports advanced data visualization tools such as MATLAB.

MULTI's optimizing C compiler produces the industry's fastest, most compact ZSP code. The compiler takes full advantage of the ZSP's superscalar capabilities, employing software pipelining to keep the ZSP's two multiply-accumulators and ALUs operating at full speed.

The heart of the MULTI IDE is a ZSP-optimized source-level debugger. The debugger supports process- and system-level debug, provides a separate window for each process, supports mixed assembly and high-level language formats, and includes a language-sensitive expression evaluator. The MULTI debugger also features incremental debug capability and a graphical memory viewer. The MULTI debugger supports a variety of host/target connectivity options, including Green Hills' own high-speed emulation probe, the Green Hills Probe™.

More on ZSP

ZSP is LSI Logic's superscalar RISC Digital Signal Processor (DSP) technology. All ZSP technologies are offered in an open architecture format that is synthesizable and licensable. ZSP consists of two generations of DSP architectures, the first being offered as the ZSP400 core(s) for general-purpose communication DSP applications. ZSP capability expanded in 2001 to include a second-generation architecture (ZSPG2), with initial implementation in a quad-MAC ZSP600 core.

More on LSI Logic

LSI Logic Corporation (NYSE: LSI) is a leading designer and manufacturer of communications, consumer, and storage semiconductors for applications that access, interconnect, and store data, voice and video. In addition, the company supplies storage network solutions for the enterprise. LSI Logic is headquartered at 1551 McCarthy Boulevard, Milpitas, CA 95035, 866-574-5741 (within U.S.), 719-533-7679 (outside U.S.),

More on 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. Green Hills Software's royalty-free INTEGRITY® real-time operating system and the ThreadX real-time operating system, fully integrated with its market leading compilers and MULTI® Integrated Development Environment, 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 European headquarters in the United Kingdom. For more information on Green Hills Software products, call 805-965-6044, email or visit us on the web at

Green Hills Software, the Green Hills logo, and MULTI are registered trademarks, and INTEGRITY and the Green Hills Probe are trademarks of Green Hills Software Inc.
All other trademarks (registered or otherwise) are the property of their respective companies.

For More Information Contact:
Green Hills Software  
Lynn J. Robinson
(805) 965-6044
Davis-Marrin Communications  
Michelle Ragsdale
(858) 573-0736