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  "Description": "Provides the 'vcd2df' function, which loads a IEEE\n1364-1995/2001 VCD (.vcd) file, specified as a parameter of\ntype string containing exactly a file path, and returns an R\ndataframe containing values over time. A VCD file captures the\nregister values at discrete timepoints from a simulated trace\nof execution of a hardware design in Verilog or VHDL. The\nreturned dataframe contains a row for each register, by name,\nand a column for each time point, specified VCD-style using\noctothorpe-prefixed multiples of the timescale as strings. The\nonly non-trivial implementation details are that (1) VCD 'x'\nand 'z' non-numerical values are encoded as negative value -1\n(as otherwise all bit values are positive) and (2) registers\nwith repeated names in distinct modules are ignored, rather\nthan duplicated, as we anticipate these registers to have the\nsame values. Read more in arXiv preprint: 'vcd2df' --\nLeveraging Data Science Insights for Hardware Security Research\n<doi:10.48550/arXiv.2505.06470>.",
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