> As I noted in the prior blog post, the Sega Master System has a tilemap that’s only 256 pixels wide, the same as the display area. Therefore, the image is sli

> As I noted in the prior blog post, the Sega Master System has a tilemap that’s only 256 pixels wide, the same as the display area. Therefore, the image is slightly off-center For anyone else for whom this made no sense, the off-center image is a tradeoff to allow for smooth horizontal scrolling when the tilemap that is used as the source for the display is the same size as the available display area. This is indeed explained in this prior post linked by the author (https://nicole.express/2021/sega-system-1-system-1.html https://nicole.express/2021/sega-system-1-system-1.html).