This book describes a specification, microarchitecture, VHDL implementation and evaluation of a SPARC v8 CPU with fine-grain multi-threading, called micro-threading. The CPU, named UTLEON3, is an alternative platform for exploring CPU multi-threading that is compatible with the industry-standard GRLIB package. The processor microarchitecture was designed to map in an efficient way the data-flow scheme on a classical von Neumann pipelined processing used in common processors, while retaining full binary compatibility with existing legacy programs. Describes and documents a working SPARC v8, with fine-grain multithreading and fast context switch;Provides VHDL sources for the described processor;Describes a latency-tolerant framework for coupling hardware accelerators to microthreaded processor pipelines;Includes programming by example in the micro-threaded assembly language.
This book details the specifications, microarchitecture, VHDL implementation and evaluation of a SPARC v8 CPU with fine-grain multithreading, also known as 'micro-threading'. This alternative CPU, named UTLEON3, is compatible with the standard GRLIB package.
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UTLEON3: Exploring Fine-Grain Multi-Threading in FPGAs