The new compiler and assembler, part of version 3.6 of the MULTI® 2000 Integrated Development Environment, greatly simplify the development of fast, compact code for embedded systems utilizing the ARM6(TM), ARM7(TM), ARM9(TM), ARM9E(TM) and ARM10(TM) processor families, and the ARM architecture-compliant Intel® StrongARM and XScale(TM) microarchitectures.
"Version 3.6 of our compiler contains many advanced features that make it easier for designers to develop ultra-fast, compact code under real-world conditions," said John Carbone, vice president of marketing for Green Hills Software. "With this new compiler, we're able to offer ARM developers the smallest code size for their memory-constrained embedded applications."
Green Hills Software's new compiler outperformed ARM's ADS 1.2 compiler on a battery of programs collected by Green Hills Software over its 20 years in the compiler business. These programs include synthetic benchmarks like SPEC, Stanford, Linpack and Dhrystone, but also customer code spanning a variety of real-world embedded applications. On the full set of tests, Green Hills Software's ARM 3.6 compiler generated code that was 17% smaller than that generated by the ADS 1.2 compiler in ARM Mode and 10% smaller in Thumb Mode. Both compilers were set to use optimizations that produce minimum code size.
ARM Mode Thumb Mode Green Green Hills Hills Software Software ARM, Green 3.6 ARM, Green 3.6 Ltd. Hills better Ltd. Hills better ADS Software than ADS ADS Software than ADS 1.2 3.6 1.2 1.2 3.6 1.2 Customer-1 25564 24620 4% 17264 16428 5% Compress 4540 4596 -1% 3284 3252 1% Customer-2 85923 71360 17% 57755 51256 11% Dhrystone 3072 3096 -1% 2464 2444 1% Customer-3 55477 48177 13% 40301 35901 11% Customer-4 2012 1820 10% 1208 1180 2% Customer-5 7392 6876 7% 5144 4900 5% Linpack 4496 3660 19% 3376 2716 20% Customer-6 2712 2208 19% 1932 1572 19% Customer-7 30124 23816 21% 24804 20450 18% Customer-8 71417 68351 4% 50153 49953 0% SPECint 100213 94640 6% 68257 70979 -4% Stanford 8444 7412 12% 5760 5336 7% Customer-9 99500 54131 46% 65388 44220 32% Customer-10 20588 19198 7% 13612 13374 2% Total 521474 433961 17% 360702 323961 10%
"Atmel's customers have benefited from Green Hills Software's tools for ARM-based system development," commented Jacko Wilbrink, ARM product manager of Atmel Inc. "As an embedded ARM component manufacturer, we value such tools and are especially pleased with the performance of this latest release of MULTI. Small code size is essential for our customers' applications, particularly those utilizing integrated flash memory."
In addition to producing smaller object code size, which is valuable in memory-constrained embedded applications like ABS systems, disk drive controllers, and handheld devices, the new compiler is fully compatible with ARM's assembly language, making it easy to use existing library routines and ROM Monitors. All compiler options are available for the user through the MULTI Builder GUI, and as command-line options in makefiles.
The MULTI IDE provides a comprehensive set of capabilities for software development using Windows, Solaris, Linux, or HP/UX host platforms. The MULTI IDE features a graphical program builder, source-level debugger, window-oriented editor, run-time error checker, version control system, performance profiler, optimizing ARM/Thumb® profiler (CodeBalance®), and real-time RTOS EventAnalyzer(TM). MULTI also features instruction set (SimARM) and cycle-count accurate (the ARMulator® software) simulators that allow programmers to develop and test code on a PC or workstation without the need for target hardware.
The MULTI 2000 debugger is RTOS aware, enabling designers working with popular RTOSes like INTEGRITY(TM) and ThreadX® to debug their applications and monitor OS resources, buffers, queues, and streams at the task level. The MULTI debugger supports freeze-mode and run-mode debugging, which enables programmers to perform debug functions and inspect processor/system resources with either the entire system, or individual tasks halted. The MULTI debugger also supports ARM's Embedded Trace Macrocell(TM) technology for real-time trace, which enables programmers to acquire target data and program flow information as the program executes without having to halt the processor.
MULTI supports a variety of host/target connectivity and debug options, including the Green Hills Probe(TM), the ARM Multi-ICE®, the Angel ROM Monitor, Agilent's Emulator Probe, EPI's JEENI® and Macraigor's OCDemon.
The MULTI Development Environment for the ARM core, including a C/C++ compiler, assembler, linker, and instruction set simulator, costs $5900 (single-seat developer's license) for a node-locked license, and $8900 for a floating license.
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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(TM) and ThreadX® real-time operating systems, 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.