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Novas supports an open file format called Fast Signal Database (FSDB) that has
the following advantages over the standard VCD file format:
•An FSDB file is more compact than a standard VCD file. Typically, an FSDB file is about 5 to 50 times smaller than a VCD file.
•Using FSDB files, Novas displays waveform and back-annotated signal values faster.
Novas provides a set of object and support files that you can link with popular
simulators to extend the simulator command set to support dumping FSDB files
directly during simulation instead of VCD files. For existing VCD files, Novas
provides the conversion utility vfast, which is used to convert VCD files into
FSDB files. In addition, VCD files are converted to FSDB files automatically
when you open a VCD file using the nTrace File->Load Simulation Result
command or the nWave File->Open command. Novas also provides another
conversion utility, fsdb2vcd, which converts FSDB files back to VCD format. |
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