[cctalk] datapoint 2200 programming

Does anyone know how the 1970/1971 original Datapoint 2200 was programmed? It had tapes containing terminal programs to access different types of systems. And the instruction set was said to be similar what became the 8008. But how were these terminal programs created and how were the tapes written? Were they under emulators on larger systems, like a PDP-10? Were there any tapes that had something like a machine code editor and tape-write routines? I assume no kind of ROM was built into the system (unless it had a built in machine code editor, and routines to write that content to a tape?) Was a version of BASIC ever built for the 8008 that ran on a Datapoint 2200 or similar system? -Steve