I should add that there's also a VT100 JS module here: http://www.espruino.com/VT100
In that case you could modify it to use whatever fonts (or parts of the screen) you wanted :)
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I should add that there's also a VT100 JS module here: http://www.espruino.com/VT100
In that case you could modify it to use whatever fonts (or parts of the screen) you wanted :)