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Justin Zaun

PROFILE

Justin Zaun

Worked on the YosysHQ/yosys repository to expand Gowin FPGA integration by implementing comprehensive latch support across twelve DL variants, including detailed simulation models and techmap rules. This work enabled latches to be used in a manner similar to DFFs, increasing design flexibility and supporting reuse of established workflows. The approach involved Verilog and digital logic design, focusing on accurate hardware description and simulation fidelity. Additionally, cleaned up simulation behavior by removing unnecessary lib_whitebox attributes from latch simulation cells, simplifying the simulation process and ensuring correct modeling. These contributions improved reliability and maintainability for Gowin-based digital hardware designs.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

2Total
Bugs
1
Commits
2
Features
1
Lines of code
191
Activity Months1

Work History

March 2026

2 Commits • 1 Features

Mar 1, 2026

March 2026 monthly summary for Yosys development: Focused on expanding Gowin integration by adding latch support and cleaning up simulation behavior to improve design flexibility, reliability, and modeling accuracy within the Gowin architecture. Overall, these efforts reduce design cycle time and enable engineers to reuse DFF-style workflows for Gowin-based designs, while ensuring simulations remain correct and maintainable.

Activity

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Quality Metrics

Correctness100.0%
Maintainability90.0%
Architecture100.0%
Performance90.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

Verilog

Technical Skills

FPGA designVerilogdigital designdigital logic designhardware description languagehardware design

Repositories Contributed To

1 repo

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

YosysHQ/yosys

Mar 2026 Mar 2026
1 Month active

Languages Used

Verilog

Technical Skills

FPGA designVerilogdigital designdigital logic designhardware description languagehardware design