Semiconductor & Computer Engineering
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Difference between revisions of "microarchitecture"
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| − | '''Microarchitecture''' ('''µarch''') is the underlying implementation of an [[instruction set architecture]] (ISA). Multiple microarchitectures may and often do get designed for any one [[ISA]] - sometimes by different [[semicondcutor companies|companies]] with different design goals (e.g. budget, thermal, power, and performance). | + | '''Microarchitecture''' ('''µarch''') is the underlying implementation of an [[instruction set architecture]] (ISA) - I.E. it is the physical hardware organization (on the [[transistor]] level) of an architecture. Multiple microarchitectures may and often do get designed for any one [[ISA]] - sometimes by different [[semicondcutor companies|companies]] with different design goals (e.g. budget, thermal, power, and performance). Where the ISA describes ''what'' a certain operation does respect to correctness of program execution, the microarchitecture describes ''how'' exactly it is done. |
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Revision as of 14:58, 21 January 2017
Microarchitecture (µarch) is the underlying implementation of an instruction set architecture (ISA) - I.E. it is the physical hardware organization (on the transistor level) of an architecture. Multiple microarchitectures may and often do get designed for any one ISA - sometimes by different companies with different design goals (e.g. budget, thermal, power, and performance). Where the ISA describes what a certain operation does respect to correctness of program execution, the microarchitecture describes how exactly it is done.
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