Add --waves argument to generate waveforms for GHDL and NVC #1101
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This was referenced Mar 5, 2025
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Closes #1099
Closes #1042
The approach here is to pass
--wavesif a waveform file should be generated. That is clearer than the "passing--gtkwave-fmt"-approach earlier used.There is a deprecation warning when passing only
--viewer-fmt/--gtkwave-fmtfor GHDL, but it still generates the file.I also added a new alias
--waves-fmtfor consistency.(I guess that one can also support other simulators generating waveform files. At least for ModelSim/Questa it is possible to generate VCD-files with a few .do-file commands and I guess the same holds for many other simulators.)