Rex Dex
Software Engineer
Warsaw, Masovian Voivodeship, Poland
Summary
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RockstarRex Dex is a software engineer based in Warsaw with nine years of experience specializing in game engine and low-level systems programming. He contributes to open-source projects focused on hardware emulation, notably implementing missing CPU instructions and advanced instruction decoding for an Xbox 360-to-Windows recompiler. His work on memory write tracing and trace navigation shows a strong grasp of CPU architecture, reverse engineering and tooling for binary translation. Comfortable touching core backend and emulator internals, he blends practical debugging instincts with careful, performance-minded implementation. Colleagues can expect a developer who thrives on solving intricate platform compatibility problems and improving developer-facing traceability in complex codebases.
9 years of coding experience
Github Skills (9)
cpu10
c-language10
reverse-engineering10
cprogramming-language10
decode10
emulation10
decoder10
decoding10
debugging9
Programming languages (1)
Github contributions (5)
rexdex/recompiler
Feb 2017 - Feb 2022
Xbox360 -> Windows executable converter
Role in this project:
Backend Developer
Backend DeveloperContributions:99 commits, 8 PRs, 88 pushes in 5 years
Contributions summary:Rex contributed to the recompiler project, focusing on implementing and refining instruction decoding for the Xbox 360's CPU. Their work involved adding and implementing missing CPU instructions within the xenon decompiler, directly modifying core files related to CPU emulation. They also implemented memory write tracing and made significant improvements to the overall trace data navigation. These changes suggest a deep understanding of the underlying architecture and the decompiler's internal workings.
windowsxbox
BareMetalEngine/onion_tool
May 2022 - Nov 2023
Contributions:4 releases, 106 pushes, 1 branch in 1 year 6 months
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