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{{title|Microarchitecture (µarch)}} | {{title|Microarchitecture (µarch)}} | ||
− | '''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 (e.g. [[CPU]], [[GPU]], [[FPU]], [[DSP]], [[Coprocessor]], [[ASCI]], etc..). Multiple microarchitectures may and often do get designed for any one [[ISA]] - sometimes by different [[ | + | '''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 (e.g. [[CPU]], [[GPU]], [[FPU]], [[DSP]], [[Coprocessor]], [[ASCI]], etc..). 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). The exact design of the microarchitecture ultimately determines its capabilities with respect to those design goals. |
== Overview == | == Overview == | ||
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Modern microarchitectures are described using [[synthesizable]] [[hardware description language|HDLs]] such as [[Verilog]] or [[VHDL]]. The description of the circuit is known as [[RTL design]]. [[Register Transfer Level]] (RTL) can be efficiently described using HDL. Final RTL designs are then passed over for verification and then [[synthesis]] - converting the RTL into optimized gate level [[netlist]]. Those optimized netlists are then either [[place & route|mapped]] onto [[programmable devices]] such as [[FPGA]]s or get converted into geometric representations in what's known as the physical design stage. | Modern microarchitectures are described using [[synthesizable]] [[hardware description language|HDLs]] such as [[Verilog]] or [[VHDL]]. The description of the circuit is known as [[RTL design]]. [[Register Transfer Level]] (RTL) can be efficiently described using HDL. Final RTL designs are then passed over for verification and then [[synthesis]] - converting the RTL into optimized gate level [[netlist]]. Those optimized netlists are then either [[place & route|mapped]] onto [[programmable devices]] such as [[FPGA]]s or get converted into geometric representations in what's known as the physical design stage. | ||
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