> I haven't quite decoded exactly what the modern formulation of an `interpretive routine` is. It sounded like a description of an interpreter used to emulate

> I haven't quite decoded exactly what the modern formulation of an `interpretive routine` is. It sounded like a description of an interpreter used to emulate the behavior of the host machine, while allowing more tracing of the algorithm. One of the arguments to the interpreter would be the program data to be interpreted.