Analog Floorplan Generator

Place blocks in a core, keep matched pairs mirrored about the symmetry axis, and check spacing, utilization and wirelength.

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Blocks

Two blocks with the same Sym tag are a mirrored pair. A tag used by only one block centres that block on the axis.

Placement

Style

Core size

Target aspect ratio (W ÷ H)

Core width (µm)

Core height (µm)

Spacing (µm)

Margin (µm)

Snap grid (µm)

Nets

One net per line: NAME: block block …

Nets draw flylines on the floorplan and give the half-perimeter wirelength (HPWL), so you can see which placement keeps wires short.

x y

Tap a block to select it.

Drag a block to move it; it snaps to the grid. With “Keep pairs mirrored” on, the partner moves to the mirror position and axis blocks stay centred. Keys: arrows nudge, Shift + arrows nudge ×10, R rotates, Esc deselects, Ctrl+Z undoes.