And this is the effect in mode 6 using exactly the same code. In Teletext, control codes appear as a space in the text, and so to compensate for this and to ensure that the text remains spaced and formatted correctly, we add a space to the strings if a graphics mode is in use.

This came about when a BBC micro menu utility, which relied on Teletext highlighting for the user to make selections, was run on an Electron which doesn't have mode 7 and selects mode 6 instead. Using this sort of highlighting method guarantees compatibility between BBC and Elk.

Click here to return to Teletext and Non Teletext Highlighting