Chapter 3. Customizing Processors: Lofty Ambitions, Stark Realities[*]

Joseph A. Fisher, Paolo Faraboschi, and Cliff Young

In this chapter we describe some of the lessons learned in almost a decade of custom-fit processors research, from the research goals initially developed at HP Labs in the early 1990s through the development of the Lx/ST200 family of customizable VLIW processors.

We believe (and show with examples) that many of the technically challenging issues in customizing architectures and their compilers have either been solved or are well along the way to being solved in the near future. Most of the other chapters of this book are dedicated to describing the details of these technologies, so we refer the readers to them for a deeper understanding ...

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