The MO5/MO6/TO7 were based on the 6809: https://en.wikipedia.org/wiki/Thomson_MO6 https://en.wikipedia.org/wiki/Thomson_MO6 https://en.wikipedia.org/wiki/Thomso

The MO5/MO6/TO7 were based on the 6809: https://en.wikipedia.org/wiki/Thomson_MO6 https://en.wikipedia.org/wiki/Thomson_MO6 https://en.wikipedia.org/wiki/Thomson_TO7 https://en.wikipedia.org/wiki/Thomson_TO7 Since I met the engineers, I believed that they implemented their own Basic, but I might be wrong.