资源描述：
《A Novel Approach to Design BCD Adder and Carr》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、21stInternationalConferenceonVLSIDesignANovelApproachtoDesignBCDAdderandCarrySkipBCDAdderAshisKumerBiswas,Md.MahmudulHasan,MoshaddekHasan,AhsanRajaChowdhuryandHafizMd.HasanBabuDepartmentofComputerScienceandEngineering,UniversityofDhaka,Dhaka-1000,Bangladesh.E
2、-mails:ashis.csedu@gmail.com,nayeem81@gmail.com,moshaddekhasan@yahoo.comfarhan717@yahoo.com,hafizbabu@hotmail.comAbstractincorporatedinmorecomplexcircuitslikefuturemathematicalprocessors.ReversiblelogichasbecomeoneofthemostpromisingReversiblelogicimplementati
3、onsforBCDadderresearchareasinthepastfewdecadesandhasfoundusing4-bitparalleladderispresentedin[9],wheretheitsapplicationsinseveraltechnologies;suchaslowreversibleFull-adderimplementationof[10]isused.InpowerCMOS,nanocomputingandopticalcomputing.[11],bothBCDadde
4、randCarrySkipBCDadderareThispaperpresentsimprovedandefficientreversibleimplementedinreversiblemode.logicimplementationsforBinaryCodedDecimalInthispaper,improveddesigntechniquesof(BCD)adderaswellasCarrySkipBCDadder.IthasreversiblelogicimplementationforBCDadder
5、andbeenshownthatthemodifieddesignsoutperformtheCarrySkipBCDadderarepresented.Wehaveexistingonesintermsofnumberofgates,numberofcomparedtheproposeddesignswiththeexistingonesgarbageoutputanddelay.andfoundthatmodifieddesignsarebetterthantheexistingonesintermsofnu
6、mberofgates,garbageoutput(outputthatisneededtomaintainreversibility)1.Introductionanddelay.Theadvancementinhigher-levelintegrationand2.BasicDefinitionsandLiteratureReviewfabricationprocesshasemergedinbetterlogiccircuitsandenergylosshasalsobeendramaticallyredu
7、cedInthissection,basicdefinitionsandideasrelatedtooverthelastdecades.Thistrendofreductionofheatinreversiblelogicarepresented.computationalsohasitsphysicallimitaccordingtoDefinition2.1.ReversibleGatesarecircuitsinwhichLandauer[1,2]whoprovedthatinlogiccomputati
8、onnumberofoutputsisequaltothenumberofinputsandeverybitofinformationlossgenerateskTln2joulesofthereisaonetoonecorrespondencebetweentheheatenergy,wherekisBoltzmann’sconstantof1.38xvectorofi
