1. A decoder comprising: a syndrome memory; a state memory; and decoding circuitry communicatively coupled to the syndrome memory and the state memory, wherein the decoding circuitry is configured to: retrieve data related to a symbol from the syndrome memory; retrieve data related to the symbol from the state memory; and process the data retrieved from the syndrome memory and the data retrieved from the state memory to determine whether to toggle a value of the symbol based at least in part on whether the symbol was previously toggled from an original state.