Month: 2025-12 — OpenXiangShan/XiangShan: Delivered a critical bug fix and stability improvements focused on the Sepbus/TL-AXI interface to enable reliable system integration and prevent interface mismatches. The change centers on correcting the Sepbus Interface ID width, ensuring proper protocol width across components and downstream compatibility.

April 2025 monthly summary for OpenXiangShan/ChiselAIA focusing on feature refinement and quality improvements. Key feature delivered this month: AXI4ToLite Read/Write Channel Separation Enhancement, aimed at boosting performance and clarity by distinctly handling read and write channels, adding new read-state logic, and updating the state machine to reduce cross-path coupling. Major bugs fixed: No major bugs reported this month; the emphasis was on architectural refinement and code quality to support higher throughput and easier future verification. Overall impact and accomplishments: The refactor enhances data-path separation, improves maintainability, and lays groundwork for future performance gains. The change simplifies verification and reduces risk of data-path interdependencies, contributing to a more robust OpenXiangShan/ChiselAIA codebase. Technologies/skills demonstrated: AXI4 protocol understanding, hardware design refactoring, state-machine design, read-state logic, and maintainability-focused engineering practices.

March 2025 monthly summary for OpenXiangShan/ChiselAIA. Key outcomes: Delivered critical reliability and performance enhancements for the AXI4-to-Lite converter and resolved core MSI/handshake bugs, strengthening system integration and interrupt reliability across the hardware IP.

February 2025 monthly summary for OpenXiangShan/ChiselAIA: Focused on reliability and modularity for critical interfaces. Delivered two major feature improvements: AXI4 to Lite Conversion Robustness Enhancement and MSI TransBundle Refactor for Modularity, both aimed at improving correctness, data flow, and maintainability in IMSIC-related logic. Key results include robust read/write channel handling, improved ready/end-of-beat detection, and a cleaner, more parameterized MSI transaction path, with updates to dependent modules to ensure proper data signaling.