Stepper is not as good as in Emacs

[Charles]

Consider the function

(defun test (x)
  (let ((y (+ x x)))
    (if (zerop (+ y y))
        y
        (* x y))))

When you compile this function in elisp with Edebug and press N (for next form), all results are shown and the cursor moves to the correct subform.

In sbcl we have nothing comparable.

Ranting talk by Andrea Corallo at els24.