1989 French program by Stephane Rubinstein (Rubi)
https://www.youtube.com/watch?v=auT3RRvwhSs (https://www.youtube.com/watch?v=auT3RRvwhSs)
Links:
https://www.cpc-power.com/index.php?page=detail&num=8747 (https://www.cpc-power.com/index.php?page=detail&num=8747)
https://www.cpc-power.com/index.php?page=staff&lenom=Rubi (https://www.cpc-power.com/index.php?page=staff&lenom=Rubi)
https://cpcrulez.fr/auteur-rubi.htm (https://cpcrulez.fr/auteur-rubi.htm)
https://en.wikipedia.org/wiki/Raster_bar (https://en.wikipedia.org/wiki/Raster_bar)
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.