FastWaveBackend/README.md
2022-08-01 16:52:42 -04:00

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Copyright - Yehowshua Immanuel
# A High performance, VCD Parser written in Rust
## Current Features
- pretty fast, parses 3.04 GB VCD file in ~67s on M1 Macbook Air with
respect to 50s with GTKWave on the same device. FastWave currently
offers highly robust error handling which GTKWave doesn't have.
# Current Limitations
Unable to handle VCD files that have signals with more than
2^32 - 1 = 4,294,967,295 deltas/changes.
## Running
This repository comes with several smaller VCD files emitted from
various EDA tools. If you want a larger VCD file, grab one from
[here](https://drive.google.com/file/d/1pfm2qo2l8fGTHHJ8TLrg1vSGaV_TUbp2/view?usp=sharing).
The first build of the program may take some time.
``cargo run --release test-vcd-files/aldec/SPI_Write.vcd``
You can run all the tests with ``cargo test``
# TODO
## Features
- [ ] move parse_orphaned_vars to scopes.rs
- [ ] Print out git commit or release number.
- [ ] Should be able to load waveform whilst viewing it live.
- could be quite challenging to implement for various reasons
- [ ] Take a look at GTKWave parser to compare efficiency.
- [ ] re-order all signal timelines as binary balanced trees with respect to timestamps
- support multithreaded re-ordering
## Repairs
- [ ] make a custom date parser for possibly up to 18 different versions(that is, for each possible tool).
- [ ] Consolidate error messages and add cursors throughout.
- [ ] Fix warnings especially usage and restriction warnings once I'm
able to successfully parse all sample VCDs.
## Code Consistency
- [ ] Change error messages to line and filenames. Go through all calls to ``format!`` whilst also keeping performance in mind.
## Marketing
- [ ] Send survey to community channel.