NationalSecurityAgency/ghidra
Jul 2026 – Jul 2026
1 Month active
Languages Used
No languages
Technical Skills
Ghidra Sleighembedded systemsinstruction set architecturereverse engineering
p-mikeg
PROFILE
P-mikeg
Worked on the NationalSecurityAgency/ghidra repository to address a critical bug in ARM Thumb instruction encoding, specifically correcting the sev.w opcode parsing in the Ghidra processor definition. Focused on embedded systems and reverse engineering, the developer applied expertise in Ghidra Sleigh and instruction set architecture to add the missing hexadecimal prefix, ensuring the sev.w instruction is now accurately recognized during disassembly and analysis. The solution involved meticulous code review, cross-referencing ARM documentation, and clear documentation of the fix for future audits. This targeted stability improvement enhanced the reliability of ARM code analysis and reduced misinterpretation risks for users.
Overall Statistics
Feature vs Bugs
0%Features
Repository Contributions
1Total
Bugs
1
Commits
1
Features
0
Lines of code
2
Activity Months1
Your Network
70 peopleSame Organization
@mail.huji.ac.il4
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Work History
July 2026
1 Commits
Jul 1, 2026July 2026: Key feature delivered: corrected ARM Thumb sev.w encoding in the Ghidra processor definition to enable accurate opcode parsing and reliable sev.w instruction disassembly. No new user-facing features were released this month; the focus was a targeted stability fix to improve analysis correctness. Major bug fixed: added missing 0x prefix for sev.w encoding, bringing it in line with ARM DDI (0xf3af8004, T2) as committed in f18269b0eb079165df3627063f6c2e1d6bbbb3b2. Overall impact: improves the reliability of ARM code analysis, reduces misinterpretation risk in reverse engineering tasks, and enhances trust in the tool. Technologies/skills demonstrated: ARM instruction encoding, meticulous code review, cross-referencing ARM documentation, Git commit traceability, and maintainability improvements.
1 Commits
Jul 1, 2026July 2026: Key feature delivered: corrected ARM Thumb sev.w encoding in the Ghidra processor definition to enable accurate opcode parsing and reliable sev.w instruction disassembly. No new user-facing features were released this month; the focus was a targeted stability fix to improve analysis correctness. Major bug fixed: added missing 0x prefix for sev.w encoding, bringing it in line with ARM DDI (0xf3af8004, T2) as committed in f18269b0eb079165df3627063f6c2e1d6bbbb3b2. Overall impact: improves the reliability of ARM code analysis, reduces misinterpretation risk in reverse engineering tasks, and enhances trust in the tool. Technologies/skills demonstrated: ARM instruction encoding, meticulous code review, cross-referencing ARM documentation, Git commit traceability, and maintainability improvements.
July 2026
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Quality Metrics
Correctness100.0%
Maintainability80.0%
Architecture80.0%
Performance100.0%
AI Usage60.0%
Skills & Technologies
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Technical Skills
Ghidra Sleighembedded systemsinstruction set architecturereverse engineering
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