https://en.m.wikipedia.org/wiki/List_of_home_computers_by_vi...
Note Don Lancaster's technique used for video in some computers
https://www.tinaja.com/ebooks/cvcb1.pdf
such as
https://en.wikipedia.org/wiki/ZX80
In some strange sense this is like using a microcontroller to implement a CRTC except you're using the main CPU to do the work.
https://en.m.wikipedia.org/wiki/List_of_home_computers_by_vi...
Note Don Lancaster's technique used for video in some computers
https://www.tinaja.com/ebooks/cvcb1.pdf
such as
https://en.wikipedia.org/wiki/ZX80
In some strange sense this is like using a microcontroller to implement a CRTC except you're using the main CPU to do the work.