Behavior of G-code and address commands

If a set contains only address commands without a G-command (G1, G2, G3, G4), two different behaviors can appear

1. If the address commands (e.g. X200) match the motion command that was last executed, then it will be treated as if this motion command were in the set.
2. If the address commands do not match the motion command that was last executed, the interpreter issues an error.

A program end (M2, M30) must be present in the code; otherwise, the imported program is invalid.