Chooses the master pane in a split source window.
select file_extension
Use the select command to choose the "master pane" when the source window is split into more than one pane. The master pane will contain the code with the file extension you specify as the argument to select.
Prism interprets unqualified line numbers in commands in terms of the source code in the master pane. It also uses the master pane to determine the source code and language to use in displaying messages, events, the call stack, and so on.
Scrolling through the master pane causes the slave pane to scroll to the corresponding location. You can scroll the slave pane independently, but this does not cause the master pane to scroll.
In commands-only Prism, select determines the programming language that Prism uses in displaying messages, events, and so on.
select .s
makes the pane containing the loaded program's assembly code the master pane.
select .f
selects the pane containing the Fortran 77 source code to be the master pane.