yodl

Yet anOther (hardware) Description Language

Quick links

• Documentation
• Playground

Installation

npm

The JS build of Yodl can be installed from npm:

$ npm install --global yodl

wasm

A WASI Preview 1 build of yodl is included in this repository:

wasmtime --dir examples res/yodl-wasi.wasm examples/RISCV.yodl "write_firrtl"

To compile FIRRTL outputs to SystemVerilog, install firtool

Usage

$ yodl examples/Hello.yodl "write_firrtl Hello.fir"
$ firtool --format=fir --verilog Hello.fir -o Hello.sv

Development

Install Moonbit:

$ curl -fsSL https://cli.moonbitlang.com/install/unix.sh | bash -s '0.9.3+08f337e2c'

Checklist

• FIRRTL export
• Generic multi-port memories
• Imports (TODO: unqualified imports)
• Verilator + SDL graphics simulation example
• Multi-dimensional vectors ([4][8]u16)
• Optional module parameters (and register initial value)
• Arbitrary port types
• Type parameters
• External modules
• Source Maps
• Test Benches
• FIRRTL to RTLIL backend to bypass SystemVerilog generation
• Language Server Protocol (LSP) support
• KiCad schematics export
• Web tour/playground