Perhaps I'll understand better what you want if you tell me what you find confusing.

I did call the jump instruction a LJMP, not because it was a legitimate instruction on the 805x, but because I was grasping for a generalized way to express it at a sufficiently low level.

Since there are only two operations involved, a load of A and an indirect jump indexed by [A] (meaning the content of A, though what's really meant is ANY register that can function as an index), it's hard for me to imagine what's likely to confuse anyone. However, the mechanism is valid. Sadly, the 'C'-like pseudo code that is often used isn't low-level enough to express this, or, perhaps, I'm just not clever enough to express that.

RE