{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/fpga-extended-modified-harvard-architecture","title":"FPGA-extended General Purpose Computer Architecture","arxiv_id":"2203.10359","date":"2022-03-19","proceeding":null,"authors":["Philippos Papaphilippou","Myrtle Shah"],"abstract":"This paper introduces a computer architecture, where part of the instruction set architecture (ISA) is implemented on small highly-integrated field-programmable gate arrays (FPGAs). Small FPGAs inside a general-purpose processor (CPU) can be used effectively to implement custom or standardised instructions. Our proposed architecture directly address related challenges for high-end CPUs, where such highly-integrated FPGAs would have the highest impact, such as on main memory bandwidth. This also enables software-transparent context-switching. The simulation-based evaluation of a dynamically reconfigurable core shows promising results approaching the performance of an equivalent core with all enabled instructions. Finally, the feasibility of adopting the proposed architecture in today's CPUs is studied through the prototyping of fast-reconfigurable FPGAs and studying the miss behaviour of opcodes.","url_abs":"https://arxiv.org/abs/2203.10359v3","url_pdf":"https://arxiv.org/pdf/2203.10359v3.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"fpga-extended-modified-harvard-architecture","repo_url":"https://github.com/pphilippos/fpga-ext-arch","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}