Package freenet.support.CPUInformation

Class CPUIDCPUInfo

java.lang.Object

freenet.support.CPUInformation.CPUIDCPUInfo

All Implemented Interfaces:

CPUInfo

Direct Known Subclasses:

AMDInfoImpl, IntelInfoImpl, VIAInfoImpl

class CPUIDCPUInfo
extends Object
implements CPUInfo

Moved out of CPUID.java Ref: http://en.wikipedia.org/wiki/CPUID

Since:

0.8.7

Constructor Summary

Constructors

Constructor	Description
CPUIDCPUInfo()

Method Summary

Modifier and Type	Method	Description
String	getCPUModelString()
String	getVendor()
boolean	hasABM()	Also known as LZCNT
boolean	hasADX()	Intel Multi-Precision Add-Carry Instruction Extensions Available in Broadwell.
boolean	hasAES()
boolean	hasAVX()
boolean	hasAVX2()
boolean	hasAVX512()	Does the CPU supports the AVX-512 Foundation instruction set? Quote wikipedia: AVX-512 consists of multiple extensions not all meant to be supported by all processors implementing them.
boolean	hasBMI1()
boolean	hasBMI2()
boolean	hasFMA3()
boolean	hasMMX()
boolean	hasMOVBE()
boolean	hasSSE()
boolean	hasSSE2()
boolean	hasSSE3()
boolean	hasSSE41()
boolean	hasSSE42()
boolean	hasSSE4A()	AMD K10 only.
boolean	hasTBM()	Trailing Bit Manipulation (AMD feature)
boolean	hasX64()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CPUIDCPUInfo

CPUIDCPUInfo()

Method Detail

getVendor

public String getVendor()

Specified by:

getVendor in interface CPUInfo

Returns:

A string indicating the vendor of the CPU.

hasMMX

public boolean hasMMX()

Specified by:

hasMMX in interface CPUInfo

Returns:

true iff the CPU supports the MMX instruction set.

hasSSE

public boolean hasSSE()

Specified by:

hasSSE in interface CPUInfo

Returns:

true iff the CPU supports the SSE instruction set.

hasSSE2

public boolean hasSSE2()

Specified by:

hasSSE2 in interface CPUInfo

Returns:

true iff the CPU supports the SSE2 instruction set.

hasSSE3

public boolean hasSSE3()

Specified by:

hasSSE3 in interface CPUInfo

Returns:

true iff the CPU supports the SSE3 instruction set.

hasSSE41

public boolean hasSSE41()

Specified by:

hasSSE41 in interface CPUInfo

Returns:

true iff the CPU supports the SSE4.1 instruction set.

hasSSE42

public boolean hasSSE42()

Specified by:

hasSSE42 in interface CPUInfo

Returns:

true iff the CPU supports the SSE4.2 instruction set.

hasSSE4A

public boolean hasSSE4A()

Description copied from interface: CPUInfo

AMD K10 only. Not supported on Intel. ref: https://en.wikipedia.org/wiki/SSE4.2#SSE4a

Specified by:

hasSSE4A in interface CPUInfo

Returns:

true iff the CPU supports the SSE4A instruction set.

hasAVX

public boolean hasAVX()

Specified by:

hasAVX in interface CPUInfo

Returns:

true iff the CPU supports the AVX instruction set.

Since:

0.9.26

hasAVX2

public boolean hasAVX2()

Specified by:

hasAVX2 in interface CPUInfo

Returns:

true iff the CPU supports the AVX2 instruction set.

Since:

0.9.26

hasAVX512

public boolean hasAVX512()

Does the CPU supports the AVX-512 Foundation instruction set? Quote wikipedia: AVX-512 consists of multiple extensions not all meant to be supported by all processors implementing them. Only the core extension AVX-512F (AVX-512 Foundation) is required by all implementations. ref: https://en.wikipedia.org/wiki/AVX-512

Specified by:

hasAVX512 in interface CPUInfo

Returns:

true iff the CPU supports the AVX-512 Foundation instruction set.

Since:

0.9.26

hasADX

public boolean hasADX()

Intel Multi-Precision Add-Carry Instruction Extensions Available in Broadwell. Unused until GMP 6.1.

Specified by:

hasADX in interface CPUInfo

Returns:

true iff the CPU supports the ADX instruction set.

Since:

0.9.26

hasTBM

public boolean hasTBM()

Trailing Bit Manipulation (AMD feature)

Specified by:

hasTBM in interface CPUInfo

Returns:

true iff the CPU supports TBM.

Since:

0.9.26, broken before 0.9.35, fixed in 0.9.35

hasAES

public boolean hasAES()

Specified by:

hasAES in interface CPUInfo

Returns:

true iff the CPU supports the AES-NI instruction set.

Since:

0.9.14

hasX64

public boolean hasX64()

Specified by:

hasX64 in interface CPUInfo

Returns:

true iff the CPU supports the 64-bit support

Since:

0.9.26

hasBMI1

public boolean hasBMI1()

Specified by:

hasBMI1 in interface CPUInfo

Returns:

true iff the CPU supports the BMI1 instruction set.

Since:

0.9.26

hasBMI2

public boolean hasBMI2()

Specified by:

hasBMI2 in interface CPUInfo

Returns:

true iff the CPU supports the BMI2 instruction set.

Since:

0.9.26

hasFMA3

public boolean hasFMA3()

Specified by:

hasFMA3 in interface CPUInfo

Returns:

true iff the CPU supports the FMA3 instruction set.

Since:

0.9.26

hasMOVBE

public boolean hasMOVBE()

Specified by:

hasMOVBE in interface CPUInfo

Returns:

true iff the CPU supports the MOVBE instruction set.

Since:

0.9.26

hasABM

public boolean hasABM()

Also known as LZCNT

Specified by:

hasABM in interface CPUInfo

Returns:

true iff the CPU supports the ABM instruction set.

Since:

0.9.26

getCPUModelString

public String getCPUModelString()
                         throws UnknownCPUException

Specified by:

getCPUModelString in interface CPUInfo

Returns:

A string detailing what type of CPU that is present in the machine. I.e. 'Pentium IV' etc.

Throws:

UnknownCPUException - If for any reason the retrieval of the requested information failed. The message encapsulated in the execption indicates the cause of the failure.