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多媒体任务的处理能力是可穿戴计算机的重要性能指标,为了使配备国产CPU的可穿戴计算机具有较强的多媒体任务处理能力,采用了可伸缩的系统结构模型。设计了15条面向多媒体任务的新指令,实现了执行新指令的多媒体任务协处理部件的逻辑结构设计,并利用工具软件对协处理部件进行了功能和性能的仿真,实验结果表明:利用可伸缩系统结构模型提高可穿戴计算机的多媒体任务处理能力是可行的。
The processing power of multimedia tasks is an important performance index of wearable computers. In order to make the wearable computers equipped with domestic CPUs have strong multimedia task processing capabilities, a scalable system structure model is adopted. 15 new instructions for multimedia tasks are designed, the logical structure design of multimedia task co-processor components for executing new instructions is implemented, and the function and performance of co-processor components are simulated by using the software tools. The experimental results show that the use of scalable System structure model to improve the wearable computer multimedia task processing power is feasible.