Reduce spasing aroung binary op

Separate gates into separate files
Implement layer builder

verilog2logicworld/gates.v

@@ -3,5 +3,5 @@ module gates(
     output wire [3:0] out, out2
 );
     assign out = a & b | c;
-    assign out2 = a & b ^ d;
+    assign out2 = ~(a & b ^ d);
 endmodule

verilog2logicworld/src/cells/binary_op.rs

@@ -0,0 +1,185 @@
+use std::cmp::max;
+
+use logicworld_subassembly::{lw, COMPONENT_MAP};
+use vecmath::{vec3_add, Vector3};
+
+use crate::cells::builder;
+use crate::router::{Connection, ConnectionMap, SQUARE};
+use crate::verilog::Cell;
+
+pub fn binary_op(
+    cell: &Cell,
+    text_id: &str,
+    parent_address: u32,
+    next_address: &mut u32,
+    next_position: &mut Vector3<i32>,
+    wires: &mut Vec<lw::Wire>,
+    connection_map: &mut ConnectionMap,
+) -> Vec<lw::Component> {
+    // All binary RTL cells have two input ports \A and \B and one output port \Y. They also have the following parameters:
+
+    // Set to a non-zero value if the input \A is signed and therefore should be sign-extended when needed.
+    let a_signed = cell.parameters["A_SIGNED"] > 0;
+
+    // The width of the input port \A.
+    let a_width = cell.parameters["A_WIDTH"];
+
+    // Set to a non-zero value if the input \B is signed and therefore should be sign-extended when needed.
+    let b_signed = cell.parameters["B_SIGNED"] > 0;
+
+    // The width of the input port \B.
+    let b_width = cell.parameters["B_WIDTH"];
+
+    // The width of the output port \Y.
+    let y_width = cell.parameters["Y_WIDTH"];
+
+    assert!(a_width == b_width, "Different widths not yet supported");
+    assert!(!a_signed && !b_signed, "Signed not yet supported");
+    assert!(
+        a_width == y_width,
+        "Different widths of input and output not yet supported"
+    );
+
+    let mut components = vec![];
+
+    let height = max(max(a_width, b_width), y_width);
+
+    builder(
+        height,
+        parent_address,
+        next_address,
+        next_position,
+        &mut components,
+        wires,
+        connection_map,
+        |i_bit, next_address, parent, next_position_within, components, wires, connection_map| {
+            let input_a = lw::Input::new(cell.inputs["A"][i_bit] as i32);
+            let input_b = lw::Input::new(cell.inputs["B"][i_bit] as i32);
+            let output_state_id = cell.outputs["Y"][i_bit] as lw::Int;
+            let output = lw::Output::new(output_state_id);
+            if text_id == "Custom.OrGate" {
+                let input_a = lw::Input::new(cell.inputs["A"][0] as lw::Int);
+                let input_b = lw::Input::new(cell.inputs["B"][0] as lw::Int);
+                let output_a = lw::Output::new(output_state_id);
+                let output_b = lw::Output::new(output_state_id);
+                let peg = lw::Input::new(output_state_id);
+                let buffer_a = lw::Component {
+                    address: *next_address,
+                    parent,
+                    numeric_id: COMPONENT_MAP["MHG.Buffer_WithOutput"],
+                    position: *next_position_within,
+                    rotation: quaternion::id(),
+                    inputs: vec![input_a],
+                    outputs: vec![output_a],
+                    custom_data: vec![],
+                };
+                let buffer_b = lw::Component {
+                    address: *next_address + 1,
+                    parent,
+                    numeric_id: COMPONENT_MAP["MHG.Buffer_WithOutput"],
+                    position: vec3_add(*next_position_within, [SQUARE, 0, 0]),
+                    rotation: quaternion::id(),
+                    inputs: vec![input_b],
+                    outputs: vec![output_b],
+                    custom_data: vec![],
+                };
+                let peg = lw::Component {
+                    address: *next_address + 2,
+                    parent,
+                    numeric_id: COMPONENT_MAP["MHG.Peg"],
+                    position: vec3_add(*next_position_within, [0, 0, 2 * SQUARE]),
+                    rotation: quaternion::id(),
+                    inputs: vec![peg],
+                    outputs: vec![],
+                    custom_data: vec![],
+                };
+
+                *next_address += 3;
+
+                connection_map.insert(
+                    Connection {
+                        cell_index: cell.index,
+                        port_name: "A",
+                        bit_index: i_bit,
+                    },
+                    lw::PegAddress::input(buffer_a.address, 0),
+                );
+                connection_map.insert(
+                    Connection {
+                        cell_index: cell.index,
+                        port_name: "B",
+                        bit_index: i_bit,
+                    },
+                    lw::PegAddress::input(buffer_b.address, 0),
+                );
+                connection_map.insert(
+                    Connection {
+                        cell_index: cell.index,
+                        port_name: "Y",
+                        bit_index: i_bit,
+                    },
+                    lw::PegAddress::input(peg.address, 0),
+                );
+
+                wires.push(lw::Wire {
+                    first_point: lw::PegAddress::output(buffer_a.address, 0),
+                    second_point: lw::PegAddress::input(peg.address, 0),
+                    circuit_state_id: output_state_id,
+                    wire_rotation: 0.0,
+                });
+                wires.push(lw::Wire {
+                    first_point: lw::PegAddress::output(buffer_b.address, 0),
+                    second_point: lw::PegAddress::input(peg.address, 0),
+                    circuit_state_id: output_state_id,
+                    wire_rotation: 0.0,
+                });
+
+                components.push(buffer_a);
+                components.push(buffer_b);
+                components.push(peg);
+            } else {
+                let component = lw::Component {
+                    address: *next_address,
+                    parent,
+                    numeric_id: COMPONENT_MAP[text_id],
+                    position: *next_position_within,
+                    rotation: quaternion::id(),
+                    inputs: vec![input_a, input_b],
+                    outputs: vec![output],
+                    custom_data: vec![],
+                };
+                *next_address += 1;
+
+                connection_map.insert(
+                    Connection {
+                        cell_index: cell.index,
+                        port_name: "A",
+                        bit_index: i_bit,
+                    },
+                    lw::PegAddress::input(component.address, 0),
+                );
+                connection_map.insert(
+                    Connection {
+                        cell_index: cell.index,
+                        port_name: "B",
+                        bit_index: i_bit,
+                    },
+                    lw::PegAddress::input(component.address, 1),
+                );
+                connection_map.insert(
+                    Connection {
+                        cell_index: cell.index,
+                        port_name: "Y",
+                        bit_index: i_bit,
+                    },
+                    lw::PegAddress::output(component.address, 0),
+                );
+                components.push(component);
+            }
+        },
+    );
+
+    next_position[2] += 4 * SQUARE;
+
+    return components;
+}

verilog2logicworld/src/cells/builder.rs

@@ -0,0 +1,90 @@
+use logicworld_subassembly::{lw, COMPONENT_MAP};
+use vecmath::Vector3;
+
+use crate::router::{ConnectionMap, SQUARE};
+
+pub fn builder(
+    height: usize,
+    parent_address: u32,
+    next_address: &mut u32,
+    position: &Vector3<i32>,
+    components: &mut Vec<lw::Component>,
+    wires: &mut Vec<lw::Wire>,
+    connection_map: &mut ConnectionMap,
+    layer_builder: impl Fn(
+        usize,
+        &mut u32,
+        u32,
+        &mut Vector3<i32>,
+        &mut Vec<lw::Component>,
+        &mut Vec<lw::Wire>,
+        &mut ConnectionMap,
+    ),
+) {
+    let mount = lw::Component {
+        address: *next_address,
+        parent: parent_address,
+        numeric_id: COMPONENT_MAP["MHG.Mount"],
+        position: *position,
+        rotation: quaternion::id(),
+        inputs: vec![],
+        outputs: vec![],
+        custom_data: lw::Mount::new(8).custom_data(),
+    };
+    let next_board = lw::Component {
+        address: *next_address + 1,
+        parent: mount.address,
+        numeric_id: COMPONENT_MAP["MHG.CircuitBoard"],
+        position: [-SQUARE / 2, 3 * SQUARE - SQUARE / 3, -SQUARE / 2],
+        rotation: quaternion::id(),
+        inputs: vec![],
+        outputs: vec![],
+        custom_data: lw::CircuitBoard::default().with_size(3, 2).custom_data(),
+    };
+
+    *next_address += 2;
+
+    let mut next_parent = next_board.address;
+    components.push(mount);
+    components.push(next_board);
+
+    for i_bit in 0..height {
+        let mut next_position_within = [SQUARE / 2, SQUARE / 2, SQUARE / 2];
+        let mount = lw::Component {
+            address: *next_address,
+            parent: next_parent,
+            numeric_id: COMPONENT_MAP["MHG.Mount"],
+            position: next_position_within,
+            rotation: quaternion::id(),
+            inputs: vec![],
+            outputs: vec![],
+            custom_data: lw::Mount::new(8).custom_data(),
+        };
+        let next_board = lw::Component {
+            address: *next_address + 1,
+            parent: mount.address,
+            numeric_id: COMPONENT_MAP["MHG.CircuitBoard"],
+            position: [-SQUARE / 2, 3 * SQUARE - SQUARE / 3, -SQUARE / 2],
+            rotation: quaternion::id(),
+            inputs: vec![],
+            outputs: vec![],
+            custom_data: lw::CircuitBoard::default().with_size(3, 2).custom_data(),
+        };
+        *next_address += 2;
+        next_position_within[0] += SQUARE;
+
+        layer_builder(
+            i_bit,
+            next_address,
+            next_parent,
+            &mut next_position_within,
+            components,
+            wires,
+            connection_map,
+        );
+
+        next_parent = next_board.address;
+        components.push(mount);
+        components.push(next_board);
+    }
+}

verilog2logicworld/src/cells/input_port.rs

@@ -0,0 +1,73 @@
+use std::f32::consts::PI;
+
+use logicworld_subassembly::{lw, COMPONENT_MAP};
+use vecmath::{vec3_add, Vector3};
+
+use crate::cells::builder;
+use crate::router::{Connection, ConnectionMap, SQUARE};
+
+pub fn input_port(
+    bits: &Vec<usize>,
+    port_name: &str,
+    parent_address: u32,
+    next_address: &mut u32,
+    next_position: &mut Vector3<lw::Int>,
+    connection_map: &mut ConnectionMap,
+) -> Vec<lw::Component> {
+    let mut components = vec![];
+    let mut wires = vec![]; // discard
+    builder(
+        bits.len(),
+        parent_address,
+        next_address,
+        next_position,
+        &mut components,
+        &mut wires,
+        connection_map,
+        |i_bit, next_address, parent, next_position_within, components, _wires, connection_map| {
+            let bit_id = bits[i_bit];
+            let label = lw::Component {
+                address: *next_address,
+                parent,
+                numeric_id: COMPONENT_MAP["MHG.PanelLabel"],
+                position: *next_position_within,
+                rotation: quaternion::euler_angles(0.0, -PI / 2.0, 0.0),
+                inputs: vec![],
+                outputs: vec![],
+                custom_data: lw::Label::new(&format!("{}[{}]", port_name, i_bit))
+                    .with_size(2.0)
+                    .custom_data(),
+            };
+
+            *next_address += 1;
+
+            let peg = lw::Component {
+                address: *next_address,
+                parent,
+                numeric_id: COMPONENT_MAP["MHG.Peg"],
+                position: vec3_add(*next_position_within, [0, 0, SQUARE]),
+                rotation: quaternion::id(),
+                inputs: vec![lw::Input::new(bit_id as lw::Int)],
+                outputs: vec![],
+                custom_data: vec![],
+            };
+            connection_map.insert(
+                Connection {
+                    cell_index: bit_id,
+                    port_name: "input",
+                    bit_index: 0,
+                },
+                lw::PegAddress::input(peg.address, 0),
+            );
+
+            components.push(label);
+            components.push(peg);
+
+            *next_address += 1;
+        },
+    );
+
+    next_position[0] += SQUARE / 3; // third of a square
+
+    return components;
+}

verilog2logicworld/src/cells/mod.rs

@@ -0,0 +1,12 @@
+mod builder;
+use builder::builder;
+
+pub mod unary_op;
+pub mod binary_op;
+pub mod input_port;
+pub mod output_port;
+
+pub use unary_op::unary_op;
+pub use binary_op::binary_op;
+pub use output_port::output_port;
+pub use input_port::input_port;

verilog2logicworld/src/cells/output_port.rs

@@ -0,0 +1,73 @@
+use std::f32::consts::PI;
+
+use logicworld_subassembly::{lw, COMPONENT_MAP};
+use vecmath::{vec3_add, Vector3};
+
+use crate::cells::builder;
+use crate::router::{Connection, ConnectionMap, SQUARE};
+
+pub fn output_port(
+    bits: &Vec<usize>,
+    port_name: &str,
+    parent_address: u32,
+    next_address: &mut u32,
+    next_position: &mut Vector3<lw::Int>,
+    connection_map: &mut ConnectionMap,
+) -> Vec<lw::Component> {
+    let mut components = vec![];
+    let mut wires = vec![]; // discard
+    builder(
+        bits.len(),
+        parent_address,
+        next_address,
+        next_position,
+        &mut components,
+        &mut wires,
+        connection_map,
+        |i_bit, next_address, parent, next_position_within, components, _wires, connection_map| {
+            let bit_id = bits[i_bit];
+            let label = lw::Component {
+                address: *next_address,
+                parent,
+                numeric_id: COMPONENT_MAP["MHG.PanelLabel"],
+                position: vec3_add(*next_position_within, [0, 0, SQUARE]),
+                rotation: quaternion::euler_angles(0.0, -PI / 2.0, 0.0),
+                inputs: vec![],
+                outputs: vec![],
+                custom_data: lw::Label::new(&format!("{}[{}]", port_name, i_bit))
+                    .with_size(2.0)
+                    .custom_data(),
+            };
+
+            *next_address += 1;
+
+            let peg = lw::Component {
+                address: *next_address,
+                parent,
+                numeric_id: COMPONENT_MAP["MHG.Peg"],
+                position: *next_position_within,
+                rotation: quaternion::id(),
+                inputs: vec![lw::Input::new(bit_id as lw::Int)],
+                outputs: vec![],
+                custom_data: vec![],
+            };
+
+            connection_map.insert(
+                Connection {
+                    cell_index: bit_id,
+                    port_name: "output",
+                    bit_index: 0,
+                },
+                lw::PegAddress::input(peg.address, 0),
+            );
+
+            components.push(label);
+            components.push(peg);
+
+            *next_address += 1;
+        },
+    );
+    next_position[0] += SQUARE / 3; // third of a square
+
+    return components;
+}

verilog2logicworld/src/cells/unary_op.rs

@@ -0,0 +1,86 @@
+use std::cmp::max;
+
+use logicworld_subassembly::{lw, COMPONENT_MAP};
+use vecmath::Vector3;
+
+use crate::cells::builder;
+use crate::router::{Connection, ConnectionMap, SQUARE};
+use crate::verilog::Cell;
+
+pub fn unary_op(
+    cell: &Cell,
+    text_id: &str,
+    parent_address: u32,
+    next_address: &mut u32,
+    next_position: &mut Vector3<i32>,
+    wires: &mut Vec<lw::Wire>,
+    connection_map: &mut ConnectionMap,
+) -> Vec<lw::Component> {
+    // All unary RTL cells have one input port \A and one output port \Y. They also have the following parameters:
+
+    // Set to a non-zero value if the input \A is signed and therefore should be sign-extended when needed.
+    let a_signed = cell.parameters["A_SIGNED"] > 0;
+
+    // The width of the input port \A.
+    let a_width = cell.parameters["A_WIDTH"];
+
+    // The width of the output port \Y.
+    let y_width = cell.parameters["Y_WIDTH"];
+
+    assert!(!a_signed, "Signed not yet supported");
+    assert!(
+        a_width == y_width,
+        "Different widths of input and output not yet supported"
+    );
+
+    let mut components = vec![];
+
+    let height = max(a_width, y_width);
+
+    builder(
+        height,
+        parent_address,
+        next_address,
+        next_position,
+        &mut components,
+        wires,
+        connection_map,
+        |i_bit, next_address, parent, next_position_within, components, _wires, connection_map| {
+            let input = lw::Input::new(cell.inputs["A"][i_bit] as i32);
+            let output = lw::Output::new(cell.outputs["Y"][i_bit] as i32);
+            let component = lw::Component {
+                address: *next_address,
+                parent,
+                numeric_id: COMPONENT_MAP[text_id],
+                position: *next_position_within,
+                rotation: quaternion::id(),
+                inputs: vec![input],
+                outputs: vec![output],
+                custom_data: vec![],
+            };
+
+            connection_map.insert(
+                Connection {
+                    cell_index: cell.index,
+                    port_name: "A",
+                    bit_index: i_bit,
+                },
+                lw::PegAddress::input(component.address, 0),
+            );
+            connection_map.insert(
+                Connection {
+                    cell_index: cell.index,
+                    port_name: "Y",
+                    bit_index: i_bit,
+                },
+                lw::PegAddress::output(component.address, 0),
+            );
+
+            components.push(component);
+            *next_address += 1;
+        },
+    );
+    next_position[2] += 3 * SQUARE;
+
+    return components;
+}

verilog2logicworld/src/main.rs

@@ -1,5 +1,6 @@
 mod router;
 mod verilog;
+mod cells;
 
 use std::path::Path;
 

verilog2logicworld/src/router.rs

@@ -1,19 +1,20 @@
-use std::{cmp::max, collections::HashMap, f32::consts::PI, fmt::Debug};
+use std::{collections::HashMap, f32::consts::PI, fmt::Debug};
 
 use logicworld_subassembly::{lw, COMPONENT_MAP};
-use vecmath::{vec3_add, Vector3};
+use vecmath::vec3_add;
 
-use crate::verilog::{Cell, Error, Module};
+use crate::verilog::{Error, Module};
+use crate::cells::*;
 
 // https://yosyshq.readthedocs.io/projects/yosys/en/0.39/CHAPTER_CellLib.html
 
-const SQUARE: lw::Int = 300;
+pub const SQUARE: lw::Int = 300;
 
 #[derive(Clone, Copy, PartialEq, Eq, Hash)]
-struct Connection<'a> {
-    cell_index: usize,
-    port_name: &'a str,
-    bit_index: usize,
+pub struct Connection<'a> {
+    pub cell_index: usize,
+    pub port_name: &'a str,
+    pub bit_index: usize,
 }
 impl<'a> Debug for Connection<'a> {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
@@ -34,7 +35,7 @@ struct Net<'a> {
     connected_inputs: Vec<Connection<'a>>,
 }
 
-type ConnectionMap<'a> = HashMap<Connection<'a>, lw::PegAddress>;
+pub type ConnectionMap<'a> = HashMap<Connection<'a>, lw::PegAddress>;
 
 pub fn route(module: Module) -> Result<(Vec<lw::Component>, Vec<lw::Wire>), Error> {
     let mut net_list: HashMap<usize, Net> = HashMap::new();
@@ -106,20 +107,15 @@ pub fn route(module: Module) -> Result<(Vec<lw::Component>, Vec<lw::Wire>), Erro
 
     let mut next_input_position = origin.clone();
     for input in &module.inputs {
-        for bit in &input.bits {
-            input_ports.extend(input_port(
-                *bit,
-                &input.name,
-                board_address,
-                &mut next_address,
-                &mut next_input_position,
-                &mut connection_map,
-            ));
-        }
-        // align back to middle
-        next_input_position[0] += SQUARE / 2;
-        next_input_position[0] -= next_input_position[0] % SQUARE;
-        next_input_position[0] += SQUARE / 2;
+        input_ports.extend(input_port(
+            &input.bits,
+            &input.name,
+            board_address,
+            &mut next_address,
+            &mut next_input_position,
+            &mut connection_map,
+        ));
+        next_input_position[0] += 3 * SQUARE;
     }
 
     let mut next_position = vec3_add(origin, [1 * SQUARE, 0, 3 * SQUARE]);
@@ -170,20 +166,15 @@ pub fn route(module: Module) -> Result<(Vec<lw::Component>, Vec<lw::Wire>), Erro
 
     let mut next_output_position = next_position.clone();
     for output in &module.outputs {
-        for bit in &output.bits {
-            output_ports.extend(output_port(
-                *bit,
-                &output.name,
-                board_address,
-                &mut next_address,
-                &mut next_output_position,
-                &mut connection_map,
-            ));
-        }
-        // align back to middle
-        next_output_position[0] += SQUARE / 2;
-        next_output_position[0] -= next_output_position[0] % SQUARE;
-        next_output_position[0] += SQUARE / 2;
+        output_ports.extend(output_port(
+            &output.bits,
+            &output.name,
+            board_address,
+            &mut next_address,
+            &mut next_output_position,
+            &mut connection_map,
+        ));
+        next_output_position[0] += 3 * SQUARE;
     }
 
     let board = lw::Component {
@@ -211,11 +202,10 @@ pub fn route(module: Module) -> Result<(Vec<lw::Component>, Vec<lw::Wire>), Erro
     for (id, net) in &net_list {
         println!();
         println!("{}: {:#?}", id, net);
-        println!("map; {:#?}", connection_map.keys());
         let output_address = &connection_map[&net.connected_output.unwrap_or(Connection {
             cell_index: *id,
             port_name: "input",
-            bit_index: 0, // TODO: figure out
+            bit_index: 0,
         })];
         for input in &net.connected_inputs {
             println!("input: {:?}", input);
@@ -232,7 +222,7 @@ pub fn route(module: Module) -> Result<(Vec<lw::Component>, Vec<lw::Wire>), Erro
             let input_address = &connection_map[&Connection {
                 cell_index: *id,
                 port_name: "output",
-                bit_index: 0, // TODO: figure out
+                bit_index: 0,
             }];
             wires.push(lw::Wire {
                 first_point: output_address.clone(),
@@ -245,364 +235,3 @@ pub fn route(module: Module) -> Result<(Vec<lw::Component>, Vec<lw::Wire>), Erro
 
     return Ok((components, wires));
 }
-
-fn input_port(
-    bit_id: usize,
-    port_name: &str,
-    parent_address: u32,
-    next_address: &mut u32,
-    next_position: &mut Vector3<lw::Int>,
-    connection_map: &mut ConnectionMap,
-) -> Vec<lw::Component> {
-    let label = lw::Component {
-        address: *next_address,
-        parent: parent_address,
-        numeric_id: COMPONENT_MAP["MHG.PanelLabel"],
-        position: *next_position,
-        rotation: quaternion::euler_angles(0.0, -PI / 2.0, 0.0),
-        inputs: vec![],
-        outputs: vec![],
-        custom_data: lw::Label::new(port_name).with_size(2.0).custom_data(),
-    };
-
-    *next_address += 1;
-
-    let peg = lw::Component {
-        address: *next_address,
-        parent: parent_address,
-        numeric_id: COMPONENT_MAP["MHG.Peg"],
-        position: vec3_add(*next_position, [0, 0, SQUARE]),
-        rotation: quaternion::id(),
-        inputs: vec![lw::Input::new(bit_id as lw::Int)],
-        outputs: vec![],
-        custom_data: vec![],
-    };
-    connection_map.insert(
-        Connection {
-            cell_index: bit_id,
-            port_name: "input",
-            bit_index: 0,
-        },
-        lw::PegAddress::input(peg.address, 0),
-    );
-
-    *next_address += 1;
-    next_position[0] += SQUARE / 3; // third of a square
-
-    return vec![peg, label];
-}
-
-fn output_port(
-    bit_id: usize,
-    port_name: &str,
-    parent_address: u32,
-    next_address: &mut u32,
-    next_position: &mut Vector3<lw::Int>,
-    connection_map: &mut ConnectionMap,
-) -> Vec<lw::Component> {
-    let label = lw::Component {
-        address: *next_address,
-        parent: parent_address,
-        numeric_id: COMPONENT_MAP["MHG.PanelLabel"],
-        position: vec3_add(*next_position, [0, 0, SQUARE]),
-        rotation: quaternion::euler_angles(0.0, -PI / 2.0, 0.0),
-        inputs: vec![],
-        outputs: vec![],
-        custom_data: lw::Label::new(port_name).with_size(2.0).custom_data(),
-    };
-
-    *next_address += 1;
-
-    let peg = lw::Component {
-        address: *next_address,
-        parent: parent_address,
-        numeric_id: COMPONENT_MAP["MHG.Peg"],
-        position: *next_position,
-        rotation: quaternion::id(),
-        inputs: vec![lw::Input::new(bit_id as lw::Int)],
-        outputs: vec![],
-        custom_data: vec![],
-    };
-    connection_map.insert(
-        Connection {
-            cell_index: bit_id,
-            port_name: "output",
-            bit_index: 0,
-        },
-        lw::PegAddress::input(peg.address, 0),
-    );
-
-    *next_address += 1;
-    next_position[0] += SQUARE / 3; // third of a square
-
-    return vec![peg, label];
-}
-
-fn binary_op(
-    cell: &Cell,
-    text_id: &str,
-    parent_address: u32,
-    next_address: &mut u32,
-    next_position: &mut Vector3<i32>,
-    wires: &mut Vec<lw::Wire>,
-    connection_map: &mut ConnectionMap,
-) -> Vec<lw::Component> {
-    // All binary RTL cells have two input ports \A and \B and one output port \Y. They also have the following parameters:
-
-    // Set to a non-zero value if the input \A is signed and therefore should be sign-extended when needed.
-    let a_signed = cell.parameters["A_SIGNED"] > 0;
-
-    // The width of the input port \A.
-    let a_width = cell.parameters["A_WIDTH"];
-
-    // Set to a non-zero value if the input \B is signed and therefore should be sign-extended when needed.
-    let b_signed = cell.parameters["B_SIGNED"] > 0;
-
-    // The width of the input port \B.
-    let b_width = cell.parameters["B_WIDTH"];
-
-    // The width of the output port \Y.
-    let y_width = cell.parameters["Y_WIDTH"];
-
-    assert!(a_width == b_width, "Different widths not yet supported");
-    assert!(!a_signed && !b_signed, "Signed not yet supported");
-    assert!(
-        a_width == y_width,
-        "Different widths of input and output not yet supported"
-    );
-
-    let mut next_parent = parent_address;
-
-    let mut components = vec![];
-
-    let height = max(max(a_width, b_width), y_width);
-
-    let mount = lw::Component {
-        address: *next_address,
-        parent: next_parent,
-        numeric_id: COMPONENT_MAP["MHG.Mount"],
-        position: *next_position,
-        rotation: quaternion::id(),
-        inputs: vec![],
-        outputs: vec![],
-        custom_data: lw::Mount::new(8).custom_data(),
-    };
-    let next_board = lw::Component {
-        address: *next_address + 1,
-        parent: mount.address,
-        numeric_id: COMPONENT_MAP["MHG.CircuitBoard"],
-        position: [-SQUARE / 2, 3 * SQUARE - SQUARE / 3, -SQUARE / 2],
-        rotation: quaternion::id(),
-        inputs: vec![],
-        outputs: vec![],
-        custom_data: lw::CircuitBoard::default().with_size(3, 2).custom_data(),
-    };
-
-    *next_address += 2;
-
-    next_parent = next_board.address;
-    components.push(mount);
-    components.push(next_board);
-
-    for i_bit in 0..height {
-        let mut next_position_within = [SQUARE / 2, SQUARE / 2, SQUARE / 2];
-        let mount = lw::Component {
-            address: *next_address,
-            parent: next_parent,
-            numeric_id: COMPONENT_MAP["MHG.Mount"],
-            position: next_position_within,
-            rotation: quaternion::id(),
-            inputs: vec![],
-            outputs: vec![],
-            custom_data: lw::Mount::new(8).custom_data(),
-        };
-        let next_board = lw::Component {
-            address: *next_address + 1,
-            parent: mount.address,
-            numeric_id: COMPONENT_MAP["MHG.CircuitBoard"],
-            position: [-SQUARE / 2, 3 * SQUARE - SQUARE / 3, -SQUARE / 2],
-            rotation: quaternion::id(),
-            inputs: vec![],
-            outputs: vec![],
-            custom_data: lw::CircuitBoard::default().with_size(3, 2).custom_data(),
-        };
-        *next_address += 2;
-        next_position_within[0] += SQUARE;
-
-        let input_a = lw::Input::new(cell.inputs["A"][i_bit] as i32);
-        let input_b = lw::Input::new(cell.inputs["B"][i_bit] as i32);
-        let output_state_id = cell.outputs["Y"][i_bit] as lw::Int;
-        let output = lw::Output::new(output_state_id);
-        if text_id == "Custom.OrGate" {
-            let input_a = lw::Input::new(cell.inputs["A"][0] as lw::Int);
-            let input_b = lw::Input::new(cell.inputs["B"][0] as lw::Int);
-            let output_a = lw::Output::new(output_state_id);
-            let output_b = lw::Output::new(output_state_id);
-            let peg = lw::Input::new(output_state_id);
-            let buffer_a = lw::Component {
-                address: *next_address,
-                parent: next_parent,
-                numeric_id: COMPONENT_MAP["MHG.Buffer_WithOutput"],
-                position: next_position_within,
-                rotation: quaternion::id(),
-                inputs: vec![input_a],
-                outputs: vec![output_a],
-                custom_data: vec![],
-            };
-            let buffer_b = lw::Component {
-                address: *next_address + 1,
-                parent: next_parent,
-                numeric_id: COMPONENT_MAP["MHG.Buffer_WithOutput"],
-                position: vec3_add(next_position_within, [SQUARE, 0, 0]),
-                rotation: quaternion::id(),
-                inputs: vec![input_b],
-                outputs: vec![output_b],
-                custom_data: vec![],
-            };
-            let peg = lw::Component {
-                address: *next_address + 2,
-                parent: next_parent,
-                numeric_id: COMPONENT_MAP["MHG.Peg"],
-                position: vec3_add(next_position_within, [0, 0, 2 * SQUARE]),
-                rotation: quaternion::id(),
-                inputs: vec![peg],
-                outputs: vec![],
-                custom_data: vec![],
-            };
-
-            connection_map.insert(
-                Connection {
-                    cell_index: cell.index,
-                    port_name: "A",
-                    bit_index: i_bit,
-                },
-                lw::PegAddress::input(buffer_a.address, 0),
-            );
-            connection_map.insert(
-                Connection {
-                    cell_index: cell.index,
-                    port_name: "B",
-                    bit_index: i_bit,
-                },
-                lw::PegAddress::input(buffer_b.address, 0),
-            );
-            connection_map.insert(
-                Connection {
-                    cell_index: cell.index,
-                    port_name: "Y",
-                    bit_index: i_bit,
-                },
-                lw::PegAddress::input(peg.address, 0),
-            );
-
-            wires.push(lw::Wire {
-                first_point: lw::PegAddress::output(buffer_a.address, 0),
-                second_point: lw::PegAddress::input(peg.address, 0),
-                circuit_state_id: output_state_id,
-                wire_rotation: 0.0,
-            });
-            wires.push(lw::Wire {
-                first_point: lw::PegAddress::output(buffer_b.address, 0),
-                second_point: lw::PegAddress::input(peg.address, 0),
-                circuit_state_id: output_state_id,
-                wire_rotation: 0.0,
-            });
-
-            components.push(buffer_a);
-            components.push(buffer_b);
-            components.push(peg);
-
-            *next_address += 3;
-        } else {
-            let component = lw::Component {
-                address: *next_address,
-                parent: next_parent,
-                numeric_id: COMPONENT_MAP[text_id],
-                position: next_position_within,
-                rotation: quaternion::id(),
-                inputs: vec![input_a, input_b],
-                outputs: vec![output],
-                custom_data: vec![],
-            };
-            *next_address += 1;
-
-            connection_map.insert(
-                Connection {
-                    cell_index: cell.index,
-                    port_name: "A",
-                    bit_index: i_bit,
-                },
-                lw::PegAddress::input(component.address, 0),
-            );
-            connection_map.insert(
-                Connection {
-                    cell_index: cell.index,
-                    port_name: "B",
-                    bit_index: i_bit,
-                },
-                lw::PegAddress::input(component.address, 1),
-            );
-            connection_map.insert(
-                Connection {
-                    cell_index: cell.index,
-                    port_name: "Y",
-                    bit_index: i_bit,
-                },
-                lw::PegAddress::output(component.address, 0),
-            );
-            components.push(component);
-        }
-        next_parent = next_board.address;
-        components.push(mount);
-        components.push(next_board);
-    }
-
-    next_position[2] += 5 * SQUARE;
-
-    return components;
-}
-
-fn unary_op(
-    cell: &Cell,
-    text_id: &str,
-    parent_address: u32,
-    next_address: &mut u32,
-    next_position: &mut Vector3<i32>,
-    wires: &mut Vec<lw::Wire>,
-    connection_map: &mut ConnectionMap,
-) -> Vec<lw::Component> {
-    let input = lw::Input::new(cell.inputs["A"][0] as i32);
-    let output = lw::Output::new(cell.outputs["Y"][0] as i32);
-    let component = lw::Component {
-        address: *next_address,
-        parent: parent_address,
-        numeric_id: COMPONENT_MAP[text_id],
-        position: *next_position,
-        rotation: quaternion::id(),
-        inputs: vec![input],
-        outputs: vec![output],
-        custom_data: vec![],
-    };
-
-    connection_map.insert(
-        Connection {
-            cell_index: cell.index,
-            port_name: "A",
-            bit_index: 0,
-        },
-        lw::PegAddress::input(component.address, 0),
-    );
-    connection_map.insert(
-        Connection {
-            cell_index: cell.index,
-            port_name: "Y",
-            bit_index: 0,
-        },
-        lw::PegAddress::output(component.address, 0),
-    );
-
-    *next_address += 1;
-    next_position[2] += 3 * SQUARE;
-
-    return vec![component];
-}