Depending on when scheduling is performed, two distinct approaches have been used: superscalar and VLIW
(Very Long Instruction Word).
While productizing NitroSIM, reaching correctness and performance for extremely large designs was a major undertaking and the VLIW
technology is working extremely well for simulation acceleration," stated Henry Verheyen, president and CEO of Liga Systems.
The most important of the processor configuration tool enhancements is the automated Flexible Length Instruction Extension (FLIX) generator for Xtensa LX2, which profiles a designer's target C code and suggests VLIW
instruction specifications that can significantly accelerate the most critical code.
architectures have proven to be an optimal target for today's C compiler technology.
Liga's plug-in VLIW
turbocharger leverages existing simulation infrastructure, tackles SoC designs of up to 300 million gates, and eliminates the need to implement designs in FPGAs or processors.
The structural object programming model of Ambric's Am2000 chips dramatically speeds development compared with VLIW
assembly coding for DSPs or RTL for FPGAs," said Howard Bubb, CEO and chairman of Ambric.
All pre-configured application processor solutions are based on the high-performance Jazz Processor, a VLIW
processor that contains many advanced architectural features including overlaid data paths, a distributed register system, code compression and power management.
Turbocharger Leverages Existing Simulation Infrastructure and Eliminates the Need to Implement Designs in Hardware Accelerators
The real-time transmit baseband processing is mapped on a VLIW
processor and shows the feasibility of implementing a 3GPP-LTE transmitter at low complexity on a software-defined radio.
The kit, with Toshiba's second generation MeP based audio VLIW
Coprocessor (AVC2), provides programmable hardware and Celoxica's ESL design software that enables designers to develop digital audio processing applications that utilize the AVC2's new instructions and customized operations.
The XCC Compiler also provides automatic vectorization for the Diamond Standard 545CK and automatic bundling of operations in VLIW
bundles for the Diamond Standard 570T, 545CK and 330HiFi.
The Diamond Standard 330HiFi employs Tensilica's VLIW
technology to deliver ultra-low power with minimal clock rate requirements while reducing code size.