Abstract: The principle of two dimensional Discrete Cosine Transform(DCT) is introduced in this paper. The algorithm of Loeffler’s DCT is analyzed. The algorithm of DCT is performed in assembly according to the structure and characteristics of BF533. The codes mentioned above are run on ADSP-BF533 platform successfully. Experiment results show that optimized codes are more efficiency than before in whatever code store space and code execution time.
Keywords: DCT; DSP;Code optimization