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Erschienen in:
2007 | OriginalPaper | Buchkapitel
Design and Run Time Code Compression for Embedded Systems
verfasst von : Sri Parameswaran, Jörg Henkel, Andhi Janapsatya, Talal Bonny, Aleksandar Ignjatovic
Erschienen in: Designing Embedded Processors
Verlag: Springer Netherlands
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Compression has long been utilized in electronic systems to improve performance, reduce transmission costs, and to minimize code size. In this chapter we show two separate techniques to compress instructions. The first technique compresses instruction traces, so that the compressed trace can be used to explore the best cache configuration to be used in an embedded system. Trace compression enables rapid cache space exploration. The second technique uses compressed instruction in memory, to be expanded just before execution in the processor. This enables a smaller code footprint, and reduced power consumption. This chapter explains the methods, and shows the benefits of two orthogonal approaches to the design of an embedded system.