A Fast Method of Bit Extraction and Insertion in DSP

A fast method of bit extraction and insertion is introduced in this text.Logic circuits is used in this method to replace the relatively slow mux to decrease the time delay required by these instructions. Multiplexing is also used to decrease the area used.Simulation and synthesis indicate that this method can greatly improve the speed and area of DSP,which will benefit the improvement of the accumulating speed and power dissipation in DSP design.