silky / verilog2factorio

This project will compile verilog (a hardware description language) into factorio blueprints.

Factorio verilog compiler

This project will compile verilog (a hardware description language) into factorio blueprints.
Using this it should also be possible to compile vhdl. (not tested)

Web Demo

You can check out the web demo here.

Install

Manually compile yosys (since the last release is quite old) and add it to your PATH.

Run npm install to install all dependencies.

Usage

Usage: v2f [options] <files..>

Options:
  -s, --seed <seed>         Specify a seed for the layout generation.
  -o, --output <file>       File to output the compiled blueprint to.
  -m, --modules <names...>  Verilog modules to output blueprint for. (defaults to all).
  -f, --files <files...>    List of Verilog files to compile. (only has to be explicitly specified after -m).
  -r, --retry               Retry until there are no longer layout errors.
  -h, --help                Display this information.

Quick Start

Run ./v2f with verilog files as parameters. Example: ./v2f ./samples/counter.v

The compiled blueprint will be output on the command line unless otherwise specified with -f.

The circuit will have inputs and outputs at the top in the order in which they were written in the code. Clock pulses are required to be exactly one tick high. (since adding edge detectors would produce a lot of overhead)

Examples

samples/counter.v

module counter(input clk, input rst, input inc, output reg [3:0] cnt);
  always @(posedge clk) begin
    if (rst)
      cnt <= 0;
    else if (inc)
      cnt <= cnt + 1'b1;
  end
endmodule

At the top in order clk, rst, inc and cnt.

6502 CPU from https://github.com/Arlet/verilog-6502/

(Currently not entirely working)