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RISC-Vs growing traction leads to the release of new RISC-V cores on a nearmonthly basis. In this growing and diverse ecosystem, understanding theperformance and other properties of a RISC-V core is of great importance sinceselecting the best fitting core is mandatory for a successful project.Analyzing RISC-V cores by hand is not possible due to the ever-increasingnumber of available cores and available software benchmarks might not befine-grained enough to understand a core completely. Programming and powerfulprogramming languages have proven to provide the productivity that is requiredto keep pace with these fast developments. In this paper we present a casestudy in which we use WAWK, a front-end for the open-source Waveform AnalysisLanguage, to analyze the performance of all instructions of SERV, a well knownbit-serial RISC-V core. With WAWK, only a few lines of code are necessary tocalculate the respective metric on the waveform generated during simulation.

Programming Language Assisted Waveform Analysis: A Case Study on the Instruction Performance of SERV