【作者】 陈霞；

【导师】 陈吉华；

【作者基本信息】 国防科学技术大学 ， 软件工程， 2006， 硕士

【摘要】 基于MMX技术的多媒体部件已被广泛地应用到各种新型的微处理器中,而多媒体移位器是多媒体部件的重要组成部件,因此研究和设计高性能多媒体移位器是设计高性能多媒体部件的重要课题。本课题主要对多媒体移位器的设计进行研究,采用全定制的方法,设计实现了一款64位高性能多媒体移位器,并将该多媒体移位器作为X微处理器多媒体部件的一部分进行了系统级模拟验证。本课题研究的主要内容和成果包括以下几个方面:1.对移位器的设计原理、方法及MMX技术进行了深入的分析和研究,提出了一款高性能的多媒体移位器的总体结构。它不仅实现了X微处理器指令集中的多媒体移位指令,还实现了多媒体转换指令;2.采用全定制的设计方法,对多媒体移位器各模块进行了详细的设计、分析和模拟,完成了版图的设计与验证。所设计的多媒体移位器关键路径延时1.606ns,版图面积0.59292 mm~2,达到了较小的延时和面积;3.将所设计的多媒体移位器放到X微处理器中进行系统级验证,并对整个X微处理器多媒体部件进行系统级验证。结果表明,该多媒体部件,包括多媒体移位器完全满足X微处理器的需要。X处理器已经投片,完全满足了设计指标要求。也证明了作为其一部分的多媒体移位器及多媒体部件的正确性。更多还原

【Abstract】 Multimedia unit based on MMX technology has been used in many new style microprocessors, and multimedia shifter is an important part of multimedia unit. So, it is crucial meaning for hign performance multimedia unit.This paper studies the design of high performance multimedia shifter, the proposed 64 bits high performance multimedia shifter is realized by full custom method, and multimedia unit including multimedia shifter is verified in system level. The main content and production of this paper are showed as follows:1. This paper studies the theory and design method of shifter, at the same time, MMX technology is studied. Consequently, a kind of high performance multimedia shifter’s configuration is proposed. This shifter not only realizes MMX shift instructions, but also realizes MMX conversion instructions.2. By full custom design method, each module of multimedia shifter is designed, analyzed and simulated. At last, the full custom layout of multimedia shifter is finished and verified. In this shifter, the delay of critical path is 1.606ns, and layout area is 0.59292 mm~2. The design achieves the goal of higher speed and smaller area.3. The multimedia unit including multimedia shifter in X microprocessor is verified in system level. The result indicates that the multimedia unit including multimedia shifter can meet X microprocessor’s need.X microprocessor has been taped out, and it can completely satisfy the request of design. Finally, the result proves that the multimedia unit and multimedia shifter are correct.更多还原