1. A processor comprising: a hardware string matcher to string match various substrings of an input stream and to generate an intermediate token format of respective substring matches; a processor core to execute first instructions as an entropy code generator to generate entropy codes from frequencies of tokens corresponding to respective substring matches; and a decompression engine to generate at least two outputs indicative of error checks of the input stream as the input stream is being compressed, wherein the processor core is to execute second instructions to generate one of the at least two outputs.