UK PD program from the late eighties or early nineties.
The program is Listed at the end of the video.
As this is not available at CPCPOWER or CPCRulez I have made a .dsk file which is attached below.
https://www.youtube.com/watch?v=ZkJTxYe8_eM (https://www.youtube.com/watch?v=ZkJTxYe8_eM)
Links:
https://www.cpcwiki.eu/index.php/ChaRleyTroniC (https://www.cpcwiki.eu/index.php/ChaRleyTroniC)
https://www.cpc-power.com/index.php?page=staff&lenom=Richard%20FAIRHURST (https://www.cpc-power.com/index.php?page=staff&lenom=Richard%20FAIRHURST)
https://cpcrulez.fr/auteur-richard_fairhurst.htm (https://cpcrulez.fr/auteur-richard_fairhurst.htm)
https://en.wikipedia.org/wiki/Public-domain_software (https://en.wikipedia.org/wiki/Public-domain_software)
Not emulated - original hardware and software.
Please note that the aspect ratio for this YouTube video is 16:9 but the CPC monitor
has an aspect ratio of 4:3 so you may wish to adjust your viewing device accordingly.