What did the supreme court decide in the ford vs wainwright case?

In plain English it says that if you are psycholigically diagnosed to be insane you cannot be executed for the offense of murder.

Ford v. Wainwright, 477 U.S. 399(1986), was the case in which the U.S. Supreme Court upheld the common law rule that the insane cannot be executed; therefore the petitioner is entitled to a competency evaluation and to an evidentiary hearing in court on the question of his competency to be executed.