Unmodified DBSIM running inside a private DOSBox, including original input, hardware drivers, timers, dialogs and mission return. All 9,300 recorded inputs and mouse events match their source bytes. Native comparisons now consume all 9,300 inputs and match 7,032 simulation/exit states and all final RESULTS.DAT/MISSION.VAR bytes. Complete replay pixels and audio remain separate checks.
| Tape | Inputs | In dialogs | Main frames | Mouse events | Return | Inspect |
|---|
![Original DOSBox replay frame]()
Images sampled every 60 input records. Playback here advances those samples at two per second; it is a contact-sheet inspection aid, not the original frame timing. Main-frame and modal-input counts differ because dialogs consume the same input stream, and the end-of-file path can render a final frame without another record.
Original audio activity