Mixed-precision compression with random access

A data compressor, comprising:

• a zero-value remover that receives 2N bit streams of values in which N is an integer greater than 1, and that outputs 2N non-zero-value bit streams having zero values removed from each respective bit stream based on a selected granularity of compression for values contained in the bit streams, the selected granularity of compression comprising a nibble of a bit stream, a byte of a bit stream, or a plurality of bytes of a bit stream;
• and
• a non-zero values packer that receives the 2N non-zero-value bit streams and forms a first group of packed non-zero values, the non-zero values packer comprising a plurality of first multiplexers arranged in 2N rows and N columns, each first multiplexer comprising a two-input multiplexer, each input of a first multiplexer in a first column of the plurality of first multiplexers receiving a respective bit stream of the 2N bit streams of non-zero values, each respective non-zero-value bit stream comprising a bit-stream length based on data in the non-zero-value bit stream, and the first multiplexers in a last column of the first multiplexers outputting 2N bit streams of values as the first group of packed non-zero values, each output bit stream having a same bit-stream length.

A data decompressor, comprising:

• a plurality of first multiplexers arranged in 2N rows and N columns in which N is greater than 1, each first multiplexer comprising a two-input multiplexer, each input of a first multiplexer in a first column of the plurality of first multiplexers respectively receiving a bit stream of 2N bit-streams of first packed non-zero values, each respective bit stream of first packed non-zero values having zero values removed from the bit stream based on a selected granularity of compression for values contained in the 2N bit streams, each respective bit stream of first packed non-zero values comprising a same bit-stream length, and the first multiplexers in a last column of the first plurality of multiplexers outputting 2N bits streams each comprising a bit stream length corresponding to unpacked data of the bit stream.