86Box/86Box
May 2025 – Mar 2026
3 Months active
Languages Used
CC++
Technical Skills
BIOS IntegrationEmulationEmulator DevelopmentSystem ProgrammingC programmingC++ development
Jester
PROFILE
Jester
Worked on the 86Box/86Box emulator, focusing on BIOS integration and disk drive emulation using C and C++. Delivered a cohesive feature set to enhance legacy hard disk support, implementing MFM, RLL, and XTA compatibility with accurate RPM-based timing. Addressed stability by fixing BIOS ROM loading for the Olivetti M240 and resolving configuration and audio feedback bugs in the MFM controller. The technical approach involved low-level programming, careful validation of configuration logic, and updates across multiple core files to improve hardware compatibility and user experience. Demonstrated strong debugging, system programming, and version control practices throughout the three-month period.
Overall Statistics
Feature vs Bugs
25%Features
Repository Contributions
8Total
Bugs
3
Commits
8
Features
1
Lines of code
74
Activity Months3
Your Network
82 peopleWork History
March 2026
2 Commits
Mar 1, 2026March 2026 — Focused on stabilizing MFM-related features in 86Box/86Box to reduce misconfigurations and improve audio behavior. Delivered two critical bug fixes: (1) MFM RPM speed configuration validation to prevent saving invalid MFM bus configurations, and (2) XT MFM controller audio seeking fix to trigger audio feedback and correctly update cylinder state. These changes enhance emulation reliability and user experience, and demonstrate strong debug, C-level problem solving, and careful change validation.
2 Commits
Mar 1, 2026March 2026 — Focused on stabilizing MFM-related features in 86Box/86Box to reduce misconfigurations and improve audio behavior. Delivered two critical bug fixes: (1) MFM RPM speed configuration validation to prevent saving invalid MFM bus configurations, and (2) XT MFM controller audio seeking fix to trigger audio feedback and correctly update cylinder state. These changes enhance emulation reliability and user experience, and demonstrate strong debug, C-level problem solving, and careful change validation.
March 2026
February 2026
4 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for 86Box/86Box focused on enhancing hardware emulation fidelity and compatibility for legacy HDDs. Delivered core HDD emulation improvements centering on MFM/RLL compatibility, timing enhancements for seek calculations, RPM-based seek time accuracy, and XTA bus type compatibility in the HDD driver and speed population logic.
February 2026
4 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for 86Box/86Box focused on enhancing hardware emulation fidelity and compatibility for legacy HDDs. Delivered core HDD emulation improvements centering on MFM/RLL compatibility, timing enhancements for seek calculations, RPM-based seek time accuracy, and XTA bus type compatibility in the HDD driver and speed population logic.
May 2025
2 Commits
May 1, 2025In May 2025, delivered a focused bug fix for Olivetti M240 BIOS ROM loading in 86Box/86Box, addressing incorrect ROM paths and filenames to ensure the emulator loads the correct BIOS ROMs, improving stability and user experience. The change was implemented via updates to the Olivetti M240 loader and committed to version control with clear traceability.
2 Commits
May 1, 2025In May 2025, delivered a focused bug fix for Olivetti M240 BIOS ROM loading in 86Box/86Box, addressing incorrect ROM paths and filenames to ensure the emulator loads the correct BIOS ROMs, improving stability and user experience. The change was implemented via updates to the Olivetti M240 loader and committed to version control with clear traceability.
May 2025
Activity
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Quality Metrics
Correctness95.0%
Maintainability92.6%
Architecture92.6%
Performance92.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++
Technical Skills
BIOS IntegrationC programmingC++ developmentEmulationEmulator DevelopmentSystem Programmingaudio processingconfiguration managementdisk drive emulationhardware compatibilityhardware interfacinglow-level programmingsystem programming
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