Custom Instructions with Multiple Exits: Generation and Execution

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Provided by: Kyushu University
Topic: Hardware
Format: PDF
In this paper, the authors propose an adaptive extensible processor in which custom instructions are generated and added after chip-fabrication. A reconfigurable functional unit is utilized to support this feature. The proposed reconfigurable functional unit is based on a matrix of functional units which is multi-cycle with the capability of conditional execution. A quantitative approach is utilized to fix the constraints of the architecture. Unlike previously proposed custom instructions, their include multiple exits. Conditional execution has been added to support the multi-exit feature of custom instructions.
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