The invention relates to the technical field of
simulation waveform comparison, and provides a
simulation waveform file-oriented automatic comparison method, which comprises the following steps of: S1, analyzing and obtaining test result data, and analyzing a log to obtain a potential
error signal; s2, performing concurrent preprocessing on the
signal data in the
proprietary format, and exporting the
signal data in a PWL
plain text data format; s3, concurrent circulation
processing is carried out on each group of result signals and golden signals, scalar pre-judgment is carried out firstly, and if the pre-judgment is not clear, vector core judgment is carried out; s4, in vector core judgment, lossless
resampling is firstly carried out on a result
signal and a golden signal, then time
delay between the two signals is calculated and removed, and then at least one vector error calculation method is adopted to be combined with a threshold value to judge whether the two signals are the same or not; and S5, summarizing comparison results of all signal pairs, and generating a structured report. The problems that waveform comparison in a
semiconductor simulation and regression test seriously depends on manual work, misjudgment is caused by small
delay, precision and efficiency conflict exists, and an automatic tool is lacked are solved.