Look-up table compression method and look-up table reading method for computation equipment and its host and device

Abstract

The disclosure provides a look-up table (LUT) compression method and a LUT reading method for computation equipment and its host and device. In a LUT compression phase, the host retrieves an original data from an original LUT by using an original table address, checks the original data according to a reconstruction condition to obtain a check result (bitmap), converts the original data into a reconstructed data according to the check result, writes the reconstructed data to a compressed LUT by using a compressed table address, writes a relationship among the original table address, the compressed table address, and the check result (bitmap) to a mapping table, and stores the compressed LUT to the device. In a LUT reading phase, the host retrieves a compressed table address and the bitmap from the mapping table by using an original table address, and the device retrieves a reconstructed data from the compressed LUT by using the compressed table address, and converts the reconstructed data into an original data according to the bitmap and a reconstruction condition.