Operating systems, infrastructure, emulation, and technical history.
The IPC framework behind most of macOS's privilege separation, built on Mach IPC but designed to make secure, sandboxed communication the easy default.
Why emulator code, firmware, game images, dumping, distribution, and anti-circumvention are separate legal questions requiring local analysis.
A technical comparison of CPU interpreters and dynamic recompilers, including dispatch cost, translation blocks, timing, exceptions, and cache invalidation.
Why cycle-accurate emulation requires synchronized clocks, bus behavior, interrupts, video timing, hardware tests, and careful performance trade-offs.
A practical boundary between emulation and hardware-assisted virtualization, including CPU execution, devices, memory, timing, and hybrid systems.
Diagnose stretched retro games by separating core geometry, pixel aspect ratio, integer scaling, overscan, and saved display overrides.
Isolate emulator black screens with verified content, lawful firmware, verbose logs, core requirements, clean overrides, and safe renderer tests.
Separate physical stick drift from mapping and calibration faults, then apply the smallest safe deadzone at the correct input layer.
Resolve missing or invalid emulator firmware by checking core requirements, configured paths, exact names, hashes, permissions, and lawful dumps.
Recover an incompatible save state by preserving every artifact, matching the original trusted core and content, then migrating to an in-game save.