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# firrtl
#### Flexible Internal Representation for RTL
This repository contains the compiler for .fir files.
It is currently being developed in stanza, with the end-goal to translate into scala for ease of other people to use.
This decision was made for multiple reasons:
1. Previous development had already been done in stanza
2. Most of the passes are relatively language independent
3. Stanza is easier to develop in than scala bc less-strict type system
4. As a favor, its useful to develop in stanza to give Patrick some language tips :)
The hardest part to port will likely be the parser, but we hope to use an existing scala-based general-purpose parser for the port.
#### Installation Instructions
*Disclaimer*: This project is going through development stages so there is no guarantee anything works.
##### For Linux:
1. Clone the repository:
`git clone https://github.com/ucb-bar/firrtl`
1. Install Stanza:
`make install-linux`
1. Install lit (you need to have pip installed first):
`pip install lit`
1. Build firrtl:
`make build`
1. Add `firrtl/utils/bin` to your `PATH`, so that the compiled firrtl will be
available anywhere. This also makes FileCheck available for the tests.
1. Rename `FileCheck_linux` in `firrtl/utils/bin` to `FileCheck`. The original
`FileCheck` is a compiled Mac version and will not run on Linux.
*Note: This compiled binary may not run on all platforms. You may need to build
Clang/LLVM from source to extract the compiled FileCheck utility.*
1. Run tests:
`make check`
1. Build and test:
`make`
##### For Mac:
1. Clone the repository:
`git clone https://github.com/ucb-bar/firrtl`
1. Install Stanza:
`make install-mac`
1. Install lit (you need to have pip installed first):
`pip install lit`
1. Build firrtl:
`make build`
1. Run tests:
`make check`
1. Build and test:
`make`
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