Linear block code decoding

Apparatus and method relates generally to data processing kernel. In such an apparatus, a datapath pipeline is configured to process datasets interlaced with respect to one another for multiple passes through a loop with conditional or data dependent decision points. A queue manager is configured with control circuitry sets to provide an instruction interface to the datapath pipeline. Each of the control circuitry sets includes: a first buffer and a second buffer each configured to buffer tokens for correspondence with the datasets. Each of the control circuitry sets further includes: an arbiter configured to decouple the conditional or data dependent decision points from the datapath pipeline to selectively provide access of the first buffer or the second buffer to the datapath functions. Memory is configured to provide access to and storage of the datasets to the datapath pipeline.