YosysHQ/yosys
Mar 2025 – Apr 2026
2 Months active
Languages Used
C++LaTeXPythonVerilog
Technical Skills
Build SystemsC++Configuration ManagementDigital DesignDocumentationHardware Description Language
Scott Ashcroft
PROFILE
Scott Ashcroft
Worked on the YosysHQ/yosys repository to deliver features and stability improvements focused on simulation accuracy and build reproducibility. Addressed cross-platform RTL simulation issues by refining C++ code to handle 32-bit architectures, improving CI reliability and reducing test noise. Enhanced documentation workflows by configuring Sphinx and LaTeX to generate deterministic PDFs, supporting compliance and audit needs. In co-simulation, migrated timing logic to integer arithmetic and introduced a scalable time structure, increasing precision and maintainability for larger designs. Emphasized clear code documentation and robust testing practices throughout, leveraging skills in C++, Verilog, and configuration management to improve reliability and scalability.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
5Total
Bugs
1
Commits
5
Features
2
Lines of code
79
Activity Months2
Your Network
87 peopleWork History
April 2026
2 Commits • 1 Features
Apr 1, 2026In April 2026, delivered co-simulation timing precision and scaling improvements in Yosys, focusing on accuracy, performance, and maintainability. Migrated co-simulation arithmetic to integer operations to avoid floating-point inaccuracies, introduced a scaled time structure to improve timing precision and scalability, and added explicit documentation clarifying that the scale variable is an exponent of 10. This work increases reliability for timing-sensitive simulations, enables handling larger designs more efficiently, and enhances maintainability through clearer code and comments.
2 Commits • 1 Features
Apr 1, 2026In April 2026, delivered co-simulation timing precision and scaling improvements in Yosys, focusing on accuracy, performance, and maintainability. Migrated co-simulation arithmetic to integer operations to avoid floating-point inaccuracies, introduced a scaled time structure to improve timing precision and scalability, and added explicit documentation clarifying that the scale variable is an exponent of 10. This work increases reliability for timing-sensitive simulations, enables handling larger designs more efficiently, and enhances maintainability through clearer code and comments.
April 2026
March 2025
3 Commits • 1 Features
Mar 1, 2025Monthly summary for 2025-03 focusing on features delivered and stability improvements in YosysHQ/yosys. Highlights include reproducible documentation PDF generation and cross-platform RTL simulation stability improvements, which together strengthen build determinism, CI reliability, and cross-architecture support. The work delivered measurable business value through deterministic docs for audit/compliance and reduced CI/test noise, enabling teams to ship with greater confidence. Demonstrates proficiency in build reproducibility, testing, and low-level RTL simulation fixes.
March 2025
3 Commits • 1 Features
Mar 1, 2025Monthly summary for 2025-03 focusing on features delivered and stability improvements in YosysHQ/yosys. Highlights include reproducible documentation PDF generation and cross-platform RTL simulation stability improvements, which together strengthen build determinism, CI reliability, and cross-architecture support. The work delivered measurable business value through deterministic docs for audit/compliance and reduced CI/test noise, enabling teams to ship with greater confidence. Demonstrates proficiency in build reproducibility, testing, and low-level RTL simulation fixes.
Activity
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Quality Metrics
Correctness96.0%
Maintainability96.0%
Architecture88.0%
Performance92.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++LaTeXPythonVerilog
Technical Skills
Build SystemsC++C++ developmentConfiguration ManagementDigital DesignDocumentationHardware Description LanguageLow-level programmingSimulationTestingalgorithm optimizationcode documentationsimulation design
Repositories Contributed To
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