When one of these statements or a procedure appears in a frame script, the frame that contains the statement is referred to as the calling frame, and the frame to which control is passed is the called frame.

All these statements transfer control from the current frame to a second frame while executing the second frame. The control frame structure uses either the callframe or openframe statement. The sequential frame structure uses the gotoframe statement to force the user to step through the application. You can achieve a similar result by using the dynamic features of OpenROAD for a sequential frame application. This is significantly faster than using gotoframe.

For more information about how to use these dynamic features, see the Programming Guide.