Reducing power consumption for processing of common values in microprocessor registers and execution units

Reducing power consumption in microprocessors for the processing of common values. Common values provided in at least one received operation are encoded into encoded common values having a lower number of bits than the common values prior to encoding. In one aspect, a separate encoding bus is used to provide the encoded common values in various processing of additional received operations in the microprocessor instead of a full-bit bus of the microprocessor, the encoding bus having less bits than the full-bit bus. In another aspect, a result of the operation is predicted based on at least one encoded common value and execution of the operation is bypassed.