The Main Window

The main window has four areas:

• the toolbar at the top,
• the netlist editor in the center,
• the charts panel (shown after a simulation or when opening a simulation output file — .raw, .prn, .csv, .csd or .dat), and
• the status bar at the bottom.

The window title shows the netlist or schematic file name. When the netlist has unsaved edits, a * prefix appears in the title.

Toolbar

From left to right:

Tool	Action
Open	Open a Xyce file (.cir netlist, or a simulation output: .raw, .prn, .csv, .csd, .dat). Standalone mode only.
Save	Save the netlist. Enabled only when the editor has unsaved changes.
Netlist	Show the netlist editor.
Charts	Show the charts panel.
Sim Output	Show or hide the simulation output panel.
Run Simulation	Run the simulation. While a simulation is running, this becomes a red Stop Simulation button that cancels the run.
Configure	Open the simulation parameters dialog.
Options	Open the Xyce options dialog to view and edit the .OPTIONS package values.
Plugin Settings	Open the plugin configuration dialog (Xyce executable path).
Exit	Close the application.

When launched from KiCad, Open and Save are disabled — the netlist belongs to the schematic and is re-extracted on every launch.

Netlist editor

The editor shows the Xyce netlist with line numbers and syntax coloring: component references and values, node names, and directives (.TRAN, .PRINT, .FFT, ...) are color-coded so netlist structure is easy to scan. It is a standard text editor — click to place the caret, drag to select, and use the usual clipboard shortcuts.

After editing, the title is marked dirty (a * prefix appears) and the toolbar Save tool becomes available. Saved edits persist to the .cir file.

Simulation output panel

The Sim Output toolbar tool toggles the simulation output panel: a monospaced log of the Xyce run, including the simulator banner, warnings, and measurement results. It is useful for diagnosing convergence problems and for reading .MEASURE results.

• Click a line to select it; shift-click or drag to select a range.
• Cmd/Ctrl+C copies the selection, or the whole log when nothing is selected; Cmd/Ctrl+A selects everything.
• The Copy button does the same as the keyboard shortcut.
• The panel keeps its content after being closed and reopened.
• Lines Xyce reported as a warning are amber and lines it reported as an error are red, so the reported problems stand out from the ordinary progress output.
• The header carries the N warnings and N errors counts whenever the run reported any. Clicking a count scrolls the log to the first occurrence and selects it.

Status bar

The status bar reports the current state: Simulation finished successfully, Simulation failed (exit code N), Simulation canceled, and specific errors such as Configured Xyce executable path is invalid. While you hover the mouse over a chart, the status bar temporarily shows a readout of the values under the cursor (see Viewing Results).

While a simulation is running, a progress indicator appears on the right of the status bar and the message area on the left is left empty:

• a progress bar with the completion percentage and Xyce's own estimate of the remaining time, for example 62% · ETA 14 sec.. Xyce reports progress for a transient analysis only, so a DC sweep, an AC, a harmonic balance or an operating point run shows an indeterminate bar and the elapsed time instead (9s elapsed).
• the warning and error counts Xyce reported so far, colour-coded like the log lines they refer to.
• the whole status bar is a shortcut: clicking it opens the simulation output panel so you can watch the live log without leaving the view you are working in.

The percentage comes from the ***** Percent complete: markers Xyce writes to its console log; the estimated time is Xyce's own estimate and moves as the run learns how long a time step takes.