openqasm/README.md

# OPENQASM
Specs, examples and tools for the OPENQASM intermediate representation.

## Current version

The latest version is: __2.0__

## About this project
On this repository you'll find all the documentation related to the OPENQASM in PDF, including the sources to generate it. Also some useful OPENQASM examples.

### Language specs

The language documentation is available under the [spec folder](https://github.com/IBM/qiskit-openqasm/tree/master/spec).

### Examples

The examples can be found under the [examples folder](https://github.com/IBM/qiskit-openqasm/tree/master/examples).

They are QASM files, i.e.:
```
// Repetition code syndrome measurement
OPENQASM 2.0;
include "qelib1.inc";
qreg q[3];
qreg a[2];
creg c[3];
creg syn[2];
gate syndrome d1,d2,d3,a1,a2 
{ 
  cx d1,a1; cx d2,a1; 
  cx d2,a2; cx d3,a2; 
}
x q[0]; // error
barrier q;
syndrome q[0],q[1],q[2],a[0],a[1];
measure a -> syn;
if(syn==1) x q[0];
if(syn==2) x q[2];
if(syn==3) x q[1];
measure q -> c;
```

## Authors
* **Andrew W. Cross** 
* **Lev S. Bishop**
* **John A. Smolin**
* **Jay M. Gambetta**

## License

This project is licensed under the Apache License 2.0 - see the [LICENSE](LICENSE) file for details

## Acknowledgments

* Thanks to the awesome [Quantum Experience Community](https://quantumexperience.ng.bluemix.net) who posted their thoughts and inputs to the OPENQASM