moore

Moore is a compiler for hardware description languages that outputs llhd assembly, with a focus on usability, clear error reporting, and completeness. Its goal is to act as a frontend for hardware design tools such as synthesizers, linters, or logical equivalence checkers.

Usage

Installation

You need a working Rust installation. Use cargo to install moore:

cargo install moore

Example

Assume the following input file:

// foo.sv
module hello_world;
endmodule

To compile foo.sv and emit the corresponding LLHD assembly to standard output call moore with the file name and the module to elaborate (-e option):

moore foo.sv -e hello_world

You can use llhd-sim to simulate the compiled module:

moore foo.sv -e hello_world > foo.llhd
llhd-sim foo.llhd

Development

Moore is developed in this repository, but is separated into the following crates:

• moore: Top-level umbrella crate tying everything together
• moore-common: Common infrastructure used by SystemVerilog and VHDL
• moore-derive: Procedural macros
• moore-svlog: SystemVerilog implementation
• moore-svlog-syntax: SystemVerilog parser and AST implementation
• moore-vhdl: VHDL implementation
• moore-vhdl-syntax: VHDL parser and AST implementation

Some useful commands when working on moore:

git submodule init
git submodule update
cargo check
cargo test --all
cargo run -- foo.sv -e foo
scripts/test.py --debug -v
scripts/test.py --debug -v <path-to-test-case>

Making a new Release

To create a new release, the individual sub-crates of the project have to be released in the reverse order outlined above. Follow this checklist:

1. Use scripts/release_status.sh to see an overview of moore/llhd crate versions used throughout the project
2. Update the version in all Cargo.toml files
3. Use scripts/release_check.sh to ensure that all crates have the same version as the root
4. Ensure cargo is happy: cargo check
5. Update the CHANGELOG.md file
6. Commit: git commit -am "Bump version to X.Y.Z
7. Tag: git tag vX.Y.Z
8. Publish all crates using cargo publish in reverse order