Fst Writer#671
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Adds FST format support as an alternative output format for WaveDumper: - lib/src/fst/fst_types.dart: FST type definitions (FstVarType, FstVarDirection, FstScopeType, FstFileType, FstSignalHandle, FstWriterConfig) - lib/src/fst/fst_writer.dart: GTKWave-compatible binary FST writer - lib/src/wave_dumper.dart: adds WaveFormat enum (vcd/fst) and FST format support - lib/rohd.dart: exports fst_types.dart and fst_writer.dart - test/fst_writer_test.dart: FST writer tests No DevTools integration on this branch; that is added later.
Uses Directory.createSync / dart:io — fails on JS with _Namespace error.
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Description & Motivation
It would be nice to have a
WaveDumperthat can output the FST format because it is much more dense and can be incrementally accessed.Related Issue(s)
None
Testing
We ran the output through a few tools, notably Wellen and GTKwave.
Backwards-compatibility
No.
Documentation
No. We will need to add. But at the user level, it becomes a choice between VCD and FST>