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Alpha 21064 - Microarchitectures - DEC
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Alpha 21064 µarch
General Info
Arch TypeCPU
DesignerDEC
ManufacturerDEC
IntroductionNovember 20 1992
Process0.75 µm, 0.675 µm
Core Configs1
Pipeline
TypeSuperscalar
OoOENo
SpeculativeYes
Reg RenamingNo
Stages7-12
Decode2-way
Instructions
ISAAlpha
Cache
L1I Cache8 KiB/core
direct-mapped
L1D Cache8 KiB/core
direct-mapped
L2 Cache0.125-16 MiB/motherboard
Succession

Alpha 21064 was the first Alpha microarchitecture designed by DEC and introduced in 1992.

Release Dates

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Process Technology

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Compatibility

Vendor OS Version Notes
Microsoft Windows Windows NT Support
DEC OpenVMS OpenVMS AXP V1.0 Initial OpenVMS support
DEC OSF/1 AXP 1.0
Novell Netware 3.2

References

  • McLellan, Edward. "The Alpha AXP architecture and 21064 processor." IEEE Micro 13.3 (1993): 36-47.
codenameAlpha 21064 +
core count1 +
designerDEC +
first launchedNovember 20, 1992 +
full page namedec/microarchitectures/alpha 21064 +
instance ofmicroarchitecture +
instruction set architectureAlpha +
manufacturerDEC +
microarchitecture typeCPU +
nameAlpha 21064 +
pipeline stages (max)12 +
pipeline stages (min)7 +
process750 nm (0.75 μm, 7.5e-4 mm) + and 675 nm (0.675 μm, 6.75e-4 mm) +