Application-SpecificMicroarchitecturalCustomizations…：应用程序特定的结构设置…

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1、CustomizableEmbeddedSystemArchitecturesPeterPetrovandAlexOrailogluUniversityofCalifornia,SanDiegoEmbeddedProcessorsMarketEmbeddedprocessorsoccupymorethan90%oftheentireprocessormarketAlargenumberofelectronicproductsrequirehigh-end32/64-bitsembeddedprocessorsEmbeddedProcesso

2、rsMarketEmbeddedprocessorsoccupymorethan90%oftheentireprocessormarketAlargenumberofelectronicproductsrequirehigh-end32/64-bitsembeddedprocessorsCellphonesDSPcomputationSpeechcodecsWirelessprotocolsAutomotiveEnginecontrolAutomatictransmissionABS,GPSMultimediaDVD/MP3/CDVideo

3、gamesDigitalcamerasApplicationRequirementsDesigncostTime-to-marketFlexibilityGeneralembeddedprocessorarchitecturesintroducedtosatisfytheseconstraints!ApplicationRequirementsDesigncostTime-to-marketFlexibilityGeneralembeddedprocessorarchitecturesintroducedtosatisfythesecons

4、traints!DeterministicPerformancePowerconsumptionPerformanceProcessorarchitectureNewArchitecturalParadigmFPGAASICPDesigncostTime-to-marketFlexibilityDeterminismPowerPerformanceDesigncostTime-to-marketFlexibilityDeterminismPowerPerformanceDesigncostTime-to-marketFl

5、exibilityDeterminismPowerPerformanceNewArchitecturalParadigmFPGAASICPDeterminismPowerPerformanceDesigncostTime-to-marketFlexibilityASCPApplication-SpecificCustomizableEmbeddedProcessorHelpspreservethebenefitsofgeneralityAlleviatesthedrawbacksofgeneral-purposeproces

6、sorsStaticvs.DynamicOptimizationsinGeneralPurposeProcessorsApplicationApplicationInformationISAMicro-ArchitectureHardwarefordynamicresolutionStrengths:ExecutioninformationavailableOptimizesinstructioninstancesLimitedprocessingpowerRun-time“training”requiresstorageLimiteda

7、pplicationknowledgeWeaknesses:Globalprograminformationavailable“Unlimited”processingpoweravailableStrengths:ISAusedforinformationtransferNorun-timeinformationWeaknesses:CompilerOptimizationsArchitecturalOptimizationsDynamicallyCustomizableEmbeddedProcessorsCompilersfors

8、taticextractionArchitecturalRuntimeincorporationASCL“shapes”theprocessorbymatchingcompile