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   '-Up-------'  '-window-'   

window

The window to be scrolled. Select it by a Window Specification or by placing the cursor in the window. If omitted and the cursor is not in a scrollable window, then all scrollable windows are scrolled.

This command has an alternative meaning after the HISTORY command is executed. See HISTORY for further information.

Whenever you use the NEXT command, IDF records information about the windows that are displayed on the screen in a page buffer. This page buffer holds information for about forty windows. When you use the PREVIOUS command, IDF attempts to determine the proper starting address for the previous display page by examining the page buffer. If you page forward, then page back, the starting location on the first page should be the same as on its previous display. If you page forward beyond the limits of the page buffer, information about the oldest pages is lost. If you open or close windows, the information in the page buffer may no longer be correct and scrolling may be erratic.

If IDF is unable to obtain information from the page buffer, the number of bytes that are displayed in the window is subtracted from the address of the first byte displayed. Unless the display shown is an unformatted dump, this is an imprecise amount. Paging backward and then paging forward does not necessarily display the original location.

Return codes

0

Operation successful

6

Command issued when it has no meaning