[frogsRnice]

Would you not have to use a jump instead of call for it to be a tail call at all- ie otherwise a new frame is created on each call

[nagaiaida]

the call is still in tail position whether or not it reuses the stack frame. there are also more involved ways to do tail call optimization than a direct single-jump compilation when you leave ret behind entirely, such as in forth-style threaded interpreters

[frogsRnice]

I guess were talking about optimising tail recursion. Would there be any reason to refer to a tail call other than that optimisation?

I’ll do some reading on the latter part of your post, thank you!