二维寻址与数据置换嵌入的多媒体存储体系  

Multimedia memory architecture with 2-D addressing and data permutation embedding.

作　　者：秦兴[1] 刘纯悦[2] 

机构地区：[1]杭州电子科技大学微电子CAD所,杭州310012 [2]浙江大学超大规模集成电路设计研究所,杭州310027

出　　处：《计算机工程与应用》2008年第7期31-36,共6页Computer Engineering and Applications

基　　金：国家高技术研究发展计划(863)(the National High-Tech Research and Development Plan of China under Grant No.2005AA1Z1271)

摘　　要：针对多媒体处理算法存储访问的特点,提出了一种新的多媒体扩展存储体系。该体系采用二维字节寻址,支持行访问和列访问;将数据置换操作与存储器访问操作相融合,通过数据置换来实现复杂的地址变换。基于此体系设计了指令系统和硬件原型。通过H.264算法测试表明,所述体系可以减少平均约32.0%的存储器访问率以及25.4%的时钟周期数。To satisfy rigid performance specifications of accessing to memory of multimedia processing,a novel multimedia memory architecture is proposed in this paper.The architecture is based on 2 dimensional addressing and support access modes such as row and column.Data permutation is merged with load/store operations to realize complex addresses transforming.The instruction set and hardware prototype are designed for the architecture.H.264 algorithm is used for benchmarking.Experiment results show that the 32.0% memory access times and 25.4% clock cycles can be reduced on the average.

关 键 词：二维寻址 数据置换 并行存储 多媒体处理 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]