[p2detar]

I could believe it, the timespan should be 1966-1976, so maybe in late 70s. I know a lot of automation software was being written in my Eastern European socialist country in assembly language around 1974. I think mostly for 6800-based chips like probably MOS 6502.

[astrange]

I went to a retrocomputing exhibition (I think at CHM) and there was a 6502-based Russian all in one computer with the nicest keyboard I've ever used.

I still wonder which model it was…