Unfortunately, current CPC emulators don't have a rewind feature like in games such as "Prince of Persia: Sands of Time" or "Braid" for PCs.
But if we use SNR recordingsare implemented, we can make adding emulators could easily add the rewind function easier. Here's how it works:
The emulator records a new SNR every second, saving these recordings for the past minute (60 SNRs total).