Frank Chan enhanced the stability and correctness of the OpenXiangShan/GEM5 O3 CPU model by addressing a critical issue in the memory subsystem. He implemented a targeted fix in C++ for misalignment detection within the Load Store Queue, ensuring that store address faults are reported accurately and exceptions are handled properly during memory access. This work improved the accuracy of fault signals and contributed to more reliable simulation behavior, particularly in performance-sensitive scenarios. Frank’s efforts demonstrated strong skills in CPU simulation, low-level programming, and memory management, with a focus on precise debugging and minimal disruption to existing memory pathways.