A save to a path with a save still being written counted as a repeated
key press, even with a load applied in between, so save, load, save
didn't save the loaded state. Now a repeat only joins the earlier save if
no load has been applied or queued since its snapshot.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
game.state.save and game.state.load take a slot of the running game
instead of a path, going through the same code as the save and load keys
(undo rotation, load undo, repeats), so that can be tested headless.
docs/async-savestates.md now describes what was built, with the results.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Move compression and file I/O off the emu thread, leaving it only the
snapshot and the apply, without wasting memory along the way. Not
implemented yet.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
