1. A system for accelerating audio processing, the system comprising: a source control unit that fetches operands for at least one of a plurality of multiply-accumulate (MAC) units from one or more registers shared with a core processor, wherein the MAC units are executable to perform operations for accelerating processing of audio data; and a destination control unit that stores values derived by at least one of the MAC units in the one or more registers, and wherein the derived values may be used to reconfigure an audio processing operation of a core processor.