(n52-to-i52 x) → *
Function: n52-to-i52$inline
(defun n52-to-i52$inline (x) (declare (type (unsigned-byte 52) x)) (declare (xargs :guard (n52p x))) (mbe :logic (logext 52 x) :exec (if (< x 2251799813685248) x (- x 4503599627370496))))