FSM State Machine Visualizer

SiliFlow automatically parses finite state machines directly from your Verilog and SystemVerilog code—rendering interactive state diagrams and transition tables without manually maintaining Graphviz scripts.

1. Opening the FSM Visualizer

• Click FSM in the top-right Action Island (or Alt+Click FSM to dock it side-by-side in a split pane next to your source code).
• Or select Run → Open FSM Visualizer.

2. Automatic HDL State & Transition Extraction

FsmViewer extracts state machines written using:

• SystemVerilog typedef enum logic [...] { IDLE, START, SHIFT, DONE } state_t;
• Traditional Verilog parameter / localparam state encodings
• Combinational or sequential case / if next-state transition logic

3. Graph Controls, Multi-FSM Selector & Mermaid Export

• Circular State Graph: Renders states cleanly with reset/initial state highlighting and labeled guard conditions along directed arcs.
• Interactive State Selection: Click any state node to highlight its incoming and outgoing transitions while inspecting the transition table.
• Multi-FSM Switcher: Switch cleanly between multiple finite state machines detected across a multi-module project.
• Zoom & Pan: Smooth zoom controls for larger control paths.
• One-Click Copy Mermaid (stateDiagram-v2): Copy valid Mermaid stateDiagram-v2 syntax straight to your clipboard for lab reports, GitHub READMEs, and architecture specs.