However, for a helper utility—where the GUI complexity is high and the dump size is < 500MB—Java is acceptable if the developer understands hardware constraints.
If your HDL Dump Helper GUI freezes or crashes, don't blame the simulator. Look at the Java heap. You are probably holding the entire universe of signals in a Vector of Objects . Stop doing that. Stream, don't load. hdl dump helper gui java problem
For engineers working with FPGAs and ASICs, debugging hardware is hard enough without fighting your toolchain. The "HDL Dump Helper" is a common internal tool—a GUI that sits between the engineer and the raw VCD/FSDB dump files, promising to filter signals, manage triggers, and visualize waveforms. However, for a helper utility—where the GUI complexity