FABulous.geometry_generator.bel_geometry#

Class for generating and managing the geometry of BELs.

Classes#

class BelGeometry[source]#

A data structure representing the geometry of a bel.

name[source]#

Name of the bel

Type:

str

src[source]#

File path of the bel HDL source file

Type:

str

width[source]#

Width of the bel

Type:

int

height[source]#

Height of the bel

Type:

int

relX[source]#

X coordinate of the bel, relative within the tile

Type:

int

relY[source]#

Y coordinate of the bel, relative within the tile

Type:

int

internalInputs[source]#

Internal input port names of the bel

Type:

List[str]

internalOutputs[source]#

Internal output port names of the bel

Type:

List[str]

externalInputs[source]#

External input port names of the bel

Type:

List[str]

externalOutputs[source]#

External output port names of the bel

Type:

List[str]

internalPortGeoms[source]#

List of geometries of the internal ports of the bel

Type:

List[PortGeometry]

externalPortGeoms[source]#

List of geometries of the external ports of the bel

Type:

List[PortGeometry]

Initialize a BelGeometry instance.
Sets all attributes to default values
Type:

None for names/sources,

zero for dimensions and coordinates, and empty lists for
port names and geometries.

Methods:

adjustPos(relX, relY)[source]#

Adjust the position of the BEL within its containing tile.

Updates the relative X and Y coordinates of the BEL to position it correctly within the tile layout.

Parameters:

  • relX (int) – New relative X coordinate within the tile

  • relY (int) – New relative Y coordinate within the tile

Return type:

None

generateGeometry(bel, padding)[source]#

Generate the geometry for a BEL (Basic Element).

Creates the geometric representation of a BEL including its dimensions and port layout. The height is determined by the maximum number of ports on either side plus padding, while width is currently fixed.

Parameters:

  • bel (Bel) – The BEL object to generate the geometry for

  • padding (int) – The padding space to add around the BEL

Return type:

None

generatePortsGeometry(bel, padding)[source]#

Generate the geometry for all ports of the BEL.

Creates PortGeometry objects for all internal and external input/output ports of the BEL. Internal ports are positioned on the left side (X=0), while external ports are positioned on the right side (X=width).

Parameters:

  • bel (Bel) – The BEL object containing port information

  • padding (int) – The padding space to add around ports

Return type:

None

saveToCSV(writer)[source]#

Save BEL geometry data to CSV format.

Writes the BEL geometry information including name, source file, position, dimensions, and all port geometries to a CSV file using the provided writer.

Parameters:

writer (object) – The CSV writer object to use for output

Return type:

None