Latency oriented processor architecture: Difference between revisions

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==Flynn's taxonomy==
{{Main|Flynn's taxonomy}}
Typically, latency oriented processor architectures execute a single task operating on a single data stream, and so they are [[Single instruction, single data|SISD]] under Flynn's taxonomy. Latency oriented processor architectures might also include [[Single instruction, multiple data|SIMD]] instruction set extensions such as Intel [[MMX (instruction set)|MMX]] and [[Streaming SIMD Extensions|SSE]]; even though these extensions operate on large data sets, their primary goal is to reduce overall latency.<ref name=YanSohilin2016/>.
 
==Implementation techniques==
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===Instruction set architecture (ISA)===
{{Main|Instruction set}}
Most architectures today use shorter and simpler instructions, like the [[load/store architecture]], which help in optimizing the instruction pipeline for faster execution. Instructions are usually all of the same size which also helps in optimizing the instruction fetch logic. Such an ISA is called a [[Reduced instruction set computing|RISC]] architecture.<ref>{{cite conference|last1=Bhandarkar|first1=Dileep|last2=Clark|first2=Douglas W. |title=PerformanceProceedings fromof Architecture:the Comparingfourth ainternational RISCconference andon aArchitectural CISCsupport withfor programming languages and operating systems Similar- HardwareASPLOS-IV Organization|journalchapter=ProceedingsPerformance offrom thearchitecture: FourthComparing Internationala ConferenceRISC onand Architecturala SupportCISC forwith Programmingsimilar Languages andhardware Operatingorganization Systems|date=1 January 1991|pages=310–319|doi=10.1145/106972.107003|url=http://dl.acm.org/citation.cfm?id=107003&CFID=860927590&CFTOKEN=39315780|publisher=ACM|isbn=0897913809 |doi-access=free}}</ref>
 
===Instruction pipelining===