基于madl语言时钟精确级仿真器生成

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1、基于MADL语言的时钟精确级仿真器生成摘要随着处理器设计复杂度的增加，设计前期在系统级别进行规划对芯片各方面性能的影响日趋增加。由于系统级设计中需要时钟精确级仿真器(CAS)进行设计空间探索(DSE)，获得芯片各方面性能，从而帮助确定设计方案，因此快速生成CAS成为芯片设计成败的关键。该文提出了利用MADL语言构建设计空间探索平台的方法，具体探讨了CAS生成的方法，并设计和实现了基于ARM7处理器的CAS。实践证明，利用MADL生成CAS，代码生成效率大大提高，且性能更加优良，能精确的模拟出指令在每个时钟周

2、期里在流水线上流动的情况，完全适合在芯片设计初期的DSE工作。关键词：体系结构描述语言，设计空间探索，系统级设计，时钟精确级仿真器MADLBASEDCYCLEACCURATEDSIMULATORGENERATIONABSTRACTAsthecomplexityofCPUdesignincreases,system-leveldesigninearlydevelopmentstageisimposingmoreandmoreinfluenceuponthechipperformance.Therefore,ge

3、neratingacycle-accurate-simulator(CAS)playsakeyroleinthechipdesign.Itcanhelpthedesignerexplorethedesignspaceandevaluatetheperformanceofthedesign.Amethodofbuildingthedesign-space-explorationplatformandgeneratingCASusingMADLisproposedinthispaper,andanimplemen

4、tationofCASbasedonARM7isalsogiven.ItcanbeprovedthatusingMADLwecangenerateCASmucheasierandtheperformanceoftheCAScanbemuchbetterforitcanaccuratelysimulatetheactionofinstructionflowinthepipelineeachclockcycle..KEYWORDS:Architecture-Description-Language(ADL)，

5、Design-Space-Exploration(DSE),Cycle-Accurate-Simulator(CAS)systemleverdesign，图片目录图1各种ADL及其功能························································································6图2MADL系统级设计流程·····························································

6、······················8图3OSM模型整体结构··························································································9图4OSM示意图····································································································10图5内存仿真模块示意图···········

7、··········································································20图6OSM流水线建模示意图················································································24图7ARM7流水线建模图··········································································

8、···········26图8乘法的OSM建模··························································································35图9SWI二进制指令格式··········································································