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Skylark - Microarchitectures - AppliedMicro
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Skylark µarch
General Info
Arch TypeCPU
DesignerAppliedMicro, Ampere Computing
ManufacturerTSMC
Introduction2018
Process16 nm
Core Configs32
Pipeline
TypeSuperscalar
OoOEYes
SpeculativeYes
Reg RenamingYes
Instructions
ISAARMv8
Succession

Skylark is AppliedMicro's successor to Shadowcat, a 16 nm ARM microarchitecture for servers. This microarcitecture was eventually acquired by Ampere Computing which has brought it to market.

Release Date[edit]

apm roadmap x-gene 1-3.png

Skylark was first announced at Hot Chips 26 in 2014 with the goal of samples starting around the end of 2015. In November of 2016, AppliedMicro was acquired by MACOM. Samples for Skylark-based processors were finally announced in March 2017. Later the year the architecture designs, team, and other assets were acquired by Ampere Computing which has finally brought the product to market in early 2018 with mass production planned for mid-2018.

Technology[edit]

Skylark is manufactured on TSMC's 16FF+ process.

Architecture[edit]

Key changes from Shadowcat[edit]

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Memory Hierarchy[edit]

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Core[edit]

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codenameSkylark +
core count32 +
designerAppliedMicro + and Ampere Computing +
first launched2018 +
full page nameapm/microarchitectures/skylark +
instance ofmicroarchitecture +
instruction set architectureARMv8 +
manufacturerTSMC +
microarchitecture typeCPU +
nameSkylark +
process16 nm (0.016 μm, 1.6e-5 mm) +