EXCEEDS logo
Exceeds
Guanghui Cheng

PROFILE

Guanghui Cheng

Wissycgh contributed to OpenXiangShan’s RISC-V ecosystem by enhancing debugging and virtualization workflows across multiple repositories. In riscv-isa-sim, Wissycgh improved breakpoint exception handling and corrected vendor ID initialization, ensuring accurate trap semantics and standard compliance using C and system programming skills. For ChiselAIA, Wissycgh addressed virtualization signaling correctness in the IMSIC module, applying digital design and hardware description language expertise to prevent guest initialization errors. In ready-to-run, Wissycgh updated NEMU integration to support the Smcntrpmf extension and introduced manual build configurations, leveraging build automation and embedded systems knowledge to improve testing reproducibility and release reliability.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

4Total
Bugs
2
Commits
4
Features
2
Lines of code
23
Activity Months4

Work History

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for OpenXiangShan/ready-to-run focusing on emulator integration improvements and build configurability. Driven by updating the NEMU reference to support the Smcntrpmf extension and by adding manual build configurations to enable reproducible testing across multiple riscv defconfigs, positioning the project for faster validation of Smcntrpmf-related changes and smoother releases.

December 2025

1 Commits

Dec 1, 2025

Concise monthly summary for 2025-12 focusing on business value and technical achievements for OpenXiangShan/riscv-isa-sim. Highlights include a targeted vendor-id correction in CSR initialization and its impact on accuracy, compatibility, and downstream tooling.

April 2025

1 Commits

Apr 1, 2025

April 2025 monthly summary for OpenXiangShan/ChiselAIA. Focused on correctness and stability of virtualization signaling in IMSIC, with a targeted bug fix to vgein comparison logic that underpins virtual guest enable signaling. Demonstrated disciplined code hygiene and collaboration around a critical hardware component, aligning with project reliability and virtualization security goals.

April 2024

1 Commits • 1 Features

Apr 1, 2024

Month: 2024-04 — Delivered a targeted improvement to the RISC-V breakpoints workflow within the OpenXiangShan/riscv-isa-sim repository. The changes focused on enhancing trap handling and breakpoint debugging capabilities, laying foundations for more reliable breakpoint-driven debugging and trap semantics in the simulator.

Activity

Loading activity data...

Quality Metrics

Correctness95.0%
Maintainability95.0%
Architecture100.0%
Performance95.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

CC++MakefileScala

Technical Skills

C programmingDigital DesignHardware Description LanguageRISC-V architecturebuild automationdebuggingembedded systemssystem programming

Repositories Contributed To

3 repos

Overview of all repositories you've contributed to across your timeline

OpenXiangShan/riscv-isa-sim

Apr 2024 Dec 2025
2 Months active

Languages Used

C++

Technical Skills

RISC-V architecturedebuggingsystem programmingembedded systems

OpenXiangShan/ChiselAIA

Apr 2025 Apr 2025
1 Month active

Languages Used

Scala

Technical Skills

Digital DesignHardware Description Language

OpenXiangShan/ready-to-run

Jan 2026 Jan 2026
1 Month active

Languages Used

CMakefile

Technical Skills

C programmingbuild automationembedded systems