Structure window

Note: In ModelSim versions 5.5 and later the information contained in the Structure window is shown in the structure tabs of the Main window Workspace. The Structure window will not display by default. You can display the Structure window at any time by selecting View > Structure (Main window). The discussion below applies to both the Structure window and the structure tabs in the Workspace.

The Structure window provides a hierarchical view of the structure of your design. An entry is created by each HDL item within the design. (Your design structure can remain hidden if you wish, see "Source code security and -nodebug" .)

HDL items you can view

The following HDL items for VHDL and Verilog are represented by hierarchy within Structure window.

VHDL items

(indicated by a dark blue square icon)
component instantiation, generate statements, block statements, and packages

Verilog items

(indicated by a lighter blue circle icon)
module instantiations, named forks, named begins, tasks, and functions

Virtual items

(indicated by an orange diamond icon)
virtual regions; see "Virtual Objects (User-defined buses, and more)" for more information.

You can expand and contract the display to view the hierarchical structure by clicking on the boxes that contain "+" or "-". Clicking "+" expands the hierarchy so the sub-elements of that item can be seen. Clicking "-" contracts the hierarchy.

The first line of the Structure window indicates the top-level design unit being simulated. By default, this is the only level of the hierarchy that is expanded upon opening the Structure window.

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