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Education and Innovation in Embedded Systems Design

USI Università della Svizzera italiana, USI Faculty of Informatics, Advanced Learning and Research Institute USI Università della Svizzera italiana USI Faculty of Informatics USI Advanced Learning and Research Institute
TitleApplication-Driven Optimization of VLIW Architectures: A Hardware-Software Approach
Publication TypeConference Paper
Year of Publication2005
AuthorsFerrante, A., G. Piscopo, and S. Scaldaferri
Conference NameRTAS '05: Proceedings of the 11th IEEE Real Time on Embedded Technology and Applications Symposium
Date Published03/2005
PublisherIEEE Computer Society
Conference LocationWashington, DC, USA
ISBN Number0-7695-2302-1
Keywordsdesign space exploration, embedded systems, HW/SW co-design, HW/SW partitioning, system level design, very long instruction words (VLIW)

A large number of embedded multimedia applications are characterized by high instruction-level parallelism (ILP) expecially in the most critical internal loop bodies. Very Large Instruction Word (VLIW) architectures Application Specific Instruction Set Processors (ASIP) are best suited to exploit such parallelism. Fast design space exploration and optimization of VLIW architecture to a specific application target is increasingly becoming the crucial factor to achieve higher efficiency designs in a relatively small amount of time. In this paper we propose an example of VLIW architecture application driven optimization using the VEX (VLIW Example) system. A typical image processing application, the Imaging Pipeline, has been chosen as an example.