Conceptual, architectural explainers — how a subsystem actually works underneath.
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.
A stage-by-stage account of controller-to-photon latency, including polling, game logic, emulation, GPU queues, display scanout, and measurement.
How rollback netcode predicts remote inputs, restores deterministic state, re-simulates missed frames, detects desyncs, and balances delay with artifacts.
How cartridge dumpers read ROM, mapper banks, save memory, and metadata—and how repeated reads, hashes, provenance, and safe handling establish confidence.
How emulators serialize CPU, memory, devices, clocks, and pending events—and why completeness, determinism, versioning, and validation matter.
Ctrl-Z, bg, fg, and a trailing & all touch one mechanism: process groups and Unix signals deciding which process can read your terminal.
Bash, Zsh, and sh accept most of the same commands, which is exactly what makes their real differences easy to miss until a script breaks.
A colorful prompt showing git branch and exit code is not a separate program — it is a string the shell re-evaluates before every command.