# llhd-sim
**Moved:** llhd-sim is now part of the [llhd] repository and crate. This repository will no longer be updated.
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This is the reference simulator for [llhd], striving to be complete but as minimal as possible. Its goal is to serve as a starting point for developing more sophisticated simulators for hardware written in llhd. As a secondary goal it acts as an application example of llhd.
## Usage
### Installation
You need a working [Rust installation](https://rustup.rs/). Use cargo to install llhd-sim:
cargo install llhd-sim
### Example
Given the following input file:
// foo.llhd
proc @foo () (i32$ %out) {
%entry:
drv %out 0 1ns
drv %out 42 2ns
%0 = add i32 9000 1
drv %out %0 3ns
halt
}
Use llhd-sim to simulate the described hardware and produce a VCD file:
llhd-sim foo.llhd
gtkwave /tmp/output.vcd
[llhd]: https://github.com/fabianschuiki/llhd