A Media Processor for Multimediasignal Processing

{ A multimedia system requires processing capabilities that include controlling functions as well as high throughput. For the consumer market, this processor must also satisfy low cost constraints. An eecient solution is the use of a dual{issue RISC architecture with key enhancements to target the high computation needs of multimedia applications. The RISC design methodology ensures its ease of programming and ef-cient controlling functions while its dual{issue approach lead to a high resource utilization. Key enhancements to this architecture include ex-ibility in the issuing control of the dual instructions; special instructions to implement SIMD parallelism; and full exibility of half{word precision and double{word precision arithmetic instructions.