Media Instruction Design for RISC3200

By using the media kernel algorithms to evaluate the performance of MDS-I, the first generation media extension set of RISC3200, we have found that MDS-I set has powerful media data processing ability but awkward media data providing ability. Then, focusing on this problem, we have proposed new media instructions, called as MDS-II, for high efficiency media data provision. The experiment results show MDS set of RISC3200, including MDS-I and MDS-II, can achieve about 2~5 speedups for media kernel algorithms compared with its MDF set. Therefore, we can conclude that the instructions for media data processing and for media data provision have the same position during designing the new media extension instruction set.