6128/6128 Plus compatible screen created using the Overscan Display type-in by Rubi published in the September 1989 issue of 'Amstrad Cent Pour Cent' magazine. Program is Listed at end of video.
https://www.youtube.com/watch?v=3S3P_pFs-Bs (https://www.youtube.com/watch?v=3S3P_pFs-Bs)
Info at CPCRulez ( Worth reading! ):
https://cpcrulez.fr/coding_rubi18-overscan.htm (https://cpcrulez.fr/coding_rubi18-overscan.htm)
Other links:
https://www.cpc-power.com/index.php?page=detail&num=12799 (https://www.cpc-power.com/index.php?page=detail&num=12799)
https://www.cpc-power.com/index.php?page=detail&num=5177 (https://www.cpc-power.com/index.php?page=detail&num=5177)
https://cpcrulez.fr/auteur-rubi.htm (https://cpcrulez.fr/auteur-rubi.htm)
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.