+@deffn {Debugger Command} restart-frame
+Restarts execution of the current stack frame. This command is
+available when the @code{debug} optimization quality is greater than
+both @code{speed} and @code{space} and when the frame is for is a global
+function. If the function is redefined in the debugger before the frame
+is restarted, the new function will be used.
+@end deffn