Application note - Implementing Custom Instructions on Bluespec's Low Footprint RISC-V MCUX


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This application note discusses how to implement and execute custom instructions on the Bluespec MCUX, a low footprint  RISC-V processor, which supports custom instruction extensions.  This application note also provides a case study of how to implement a custom instruction using a world example (leading zero counter, complex swap) and provides an analysis of the improvements in execution provided by executing the custom instruction compared to using the standard RISC-V instruction set.