Sounds like it, yes, but it is infinitely more flexible and iirc the general architecture also allows chaining, e.g., you can in a sense bind a parameter of a s

Sounds like it, yes, but it is infinitely more flexible and iirc the general architecture also allows chaining, e.g., you can in a sense bind a parameter of a system call to the result of another to-be-made system call. An example might be taking the length from one system call to another or a file descriptor number.