OpenXiangShan/XiangShan
Nov 2024 – Jan 2025
2 Months active
Languages Used
PythonScalaYAMLShell
Technical Skills
CI/CDComputer ArchitectureDigital LogicDigital Logic DesignFPGAHardware Design
HeiHuDie
PROFILE
Heihudie
Over a three-month period, this developer contributed to the OpenXiangShan ecosystem by expanding floating-point and vector instruction support, focusing on hardware-software integration and correctness. They enhanced the YunSuan and XiangShan repositories by parameterizing exponent widths in floating-point conversions and enabling F16 instruction set support, using C, Python, and digital logic design. Their work included improving CI coverage, debugging emulator behavior, and refining submodule management to ensure stable system integration. By addressing edge cases in FP conversions and updating NEMU references, they improved numerical accuracy and simulator stability, demonstrating a deep understanding of RISC-V architecture and embedded systems development.
Overall Statistics
Feature vs Bugs
53%Features
Repository Contributions
20Total
Bugs
7
Commits
20
Features
8
Lines of code
328
Activity Months3
Your Network
69 people
Work History
January 2025
3 Commits • 1 Features
Jan 1, 2025January 2025: Delivered targeted FP correctness fixes and NEMU readiness improvements across OpenXiangShan/XiangShan and ready-to-run, focusing on FP EEW handling, SEW/vsew8 support, and NEMU stability. Key outcomes include enabling vsew8 in zvfh, updating NEMU references across submodules, and broad stability/refactor improvements to the simulator and build/config infrastructure. These changes improve FP accuracy for double-precision paths, expand SEW support, and reduce integration risk for future workloads.
3 Commits • 1 Features
Jan 1, 2025January 2025: Delivered targeted FP correctness fixes and NEMU readiness improvements across OpenXiangShan/XiangShan and ready-to-run, focusing on FP EEW handling, SEW/vsew8 support, and NEMU stability. Key outcomes include enabling vsew8 in zvfh, updating NEMU references across submodules, and broad stability/refactor improvements to the simulator and build/config infrastructure. These changes improve FP accuracy for double-precision paths, expand SEW support, and reduce integration risk for future workloads.
January 2025
November 2024
16 Commits • 7 Features
Nov 1, 2024November 2024 monthly summary outlining key delivered features, major bugs fixed, and overall impact across the OpenXiangShan projects. Focused on expanding F16 support, aligning references and CI coverage, and tightening correctness in FP and vector paths. Business value centers on broader hardware compatibility testing, improved debugging capabilities, and more accurate numerical behavior across simulators and emulators.
November 2024
16 Commits • 7 Features
Nov 1, 2024November 2024 monthly summary outlining key delivered features, major bugs fixed, and overall impact across the OpenXiangShan projects. Focused on expanding F16 support, aligning references and CI coverage, and tightening correctness in FP and vector paths. Business value centers on broader hardware compatibility testing, improved debugging capabilities, and more accurate numerical behavior across simulators and emulators.
October 2024
1 Commits
Oct 1, 2024Concise monthly summary for OpenXiangShan/YunSuan (2024-10). Focused on delivering robust FP conversion reliability through parameterization improvements in the postnorm stage.
1 Commits
Oct 1, 2024Concise monthly summary for OpenXiangShan/YunSuan (2024-10). Focused on delivering robust FP conversion reliability through parameterization improvements in the postnorm stage.
October 2024
Activity
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Quality Metrics
Correctness88.0%
Maintainability87.0%
Architecture86.4%
Performance80.0%
AI Usage21.0%
Skills & Technologies
Programming Languages
BinaryCPythonScalaShellYAML
Technical Skills
CI/CDCPU architectureComputer ArchitectureDebuggingDigital LogicDigital Logic DesignEmbedded SystemsEmbedded systemsEmulator DevelopmentFPGAFPGA DevelopmentFloating Point ArithmeticGitHardware DesignInterpreter Development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
OpenXiangShan/YunSuan
Oct 2024 – Nov 2024
2 Months active
Languages Used
Scala
Technical Skills
Digital Logic DesignFPGA DevelopmentHardware DesignFPGAFloating Point Arithmetic
OpenXiangShan/ready-to-run
Nov 2024 – Jan 2025
2 Months active
Languages Used
Binary
Technical Skills
Embedded SystemsInterpreter DevelopmentSystem IntegrationDebuggingEmulator DevelopmentSystem Development
OpenXiangShan/NEMU
Nov 2024 – Nov 2024
1 Month active
Languages Used
C
Technical Skills
CPU architectureEmbedded systemsEmulator DevelopmentLow-level programmingRISC-VSystem Programming
OpenXiangShan/riscv-isa-sim
Nov 2024 – Nov 2024
1 Month active
Languages Used
C
Technical Skills
Embedded SystemsRISC-V