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

Constructor Summary

Constructors

Constructor and Description
CPUIDCPUInfo()

Method Summary

Modifier and Type	Method and Description
String	getCPUModelString() Gets the CPU model description.
String	getVendor() Gets the CPU vendor.
boolean	hasABM() Also known as LZCNT
boolean	hasADX() Intel Multi-Precision Add-Carry Instruction Extensions Available in Broadwell.
boolean	hasAES() Checks if CPU supports the AES-NI instruction set.
boolean	hasAVX() Checks if CPU supports the AVX instruction set.
boolean	hasAVX2() Checks if CPU supports the AVX2 instruction set.
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() Checks if CPU supports the BMI1 instruction set.
boolean	hasBMI2() Checks if CPU supports the BMI2 instruction set.
boolean	hasFMA3() Checks if CPU supports the FMA3 instruction set.
boolean	hasMMX() Checks if CPU supports the MMX instruction set.
boolean	hasMOVBE() Checks if CPU supports the MOVBE instruction set.
boolean	hasSSE() Checks if CPU supports the SSE instruction set.
boolean	hasSSE2() Checks if CPU supports the SSE2 instruction set.
boolean	hasSSE3() Checks if CPU supports the SSE3 instruction set.
boolean	hasSSE41() Checks if CPU supports the SSE4.1 instruction set.
boolean	hasSSE42() Checks if CPU supports the SSE4.2 instruction set.
boolean	hasSSE4A() AMD K10 only.
boolean	hasTBM() Trailing Bit Manipulation (AMD feature)
boolean	hasX64() Checks if CPU supports the 64-bit support.

Methods inherited from class java.lang.Object

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

Constructor Detail

CPUIDCPUInfo

CPUIDCPUInfo()

Method Detail

getCPUModelString

public String getCPUModelString()
                         throws UnknownCPUException

Description copied from interface: CPUInfo

Gets the CPU model description.

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.

getVendor

public String getVendor()

Description copied from interface: CPUInfo

Gets the CPU vendor.

Specified by:

getVendor in interface CPUInfo

Returns:

A string indicating the vendor of the CPU.

hasABM

public boolean hasABM()

Also known as LZCNT

Specified by:

hasABM in interface CPUInfo

Returns:

true iff the CPU supports the ABM instruction set.

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.

hasAES

public boolean hasAES()

Description copied from interface: CPUInfo

Checks if CPU supports the AES-NI instruction set.

Specified by:

hasAES in interface CPUInfo

Returns:

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

hasAVX

public boolean hasAVX()

Description copied from interface: CPUInfo

Checks if CPU supports the AVX instruction set.

Specified by:

hasAVX in interface CPUInfo

Returns:

true iff the CPU supports the AVX instruction set.

hasAVX2

public boolean hasAVX2()

Description copied from interface: CPUInfo

Checks if CPU supports the AVX2 instruction set.

Specified by:

hasAVX2 in interface CPUInfo

Returns:

true iff the CPU supports the AVX2 instruction set.

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.

hasBMI1

public boolean hasBMI1()

Description copied from interface: CPUInfo

Checks if CPU supports the BMI1 instruction set.

Specified by:

hasBMI1 in interface CPUInfo

Returns:

true iff the CPU supports the BMI1 instruction set.

hasBMI2

public boolean hasBMI2()

Description copied from interface: CPUInfo

Checks if CPU supports the BMI2 instruction set.

Specified by:

hasBMI2 in interface CPUInfo

Returns:

true iff the CPU supports the BMI2 instruction set.

hasFMA3

public boolean hasFMA3()

Description copied from interface: CPUInfo

Checks if CPU supports the FMA3 instruction set.

Specified by:

hasFMA3 in interface CPUInfo

Returns:

true iff the CPU supports the FMA3 instruction set.

hasMMX

public boolean hasMMX()

Description copied from interface: CPUInfo

Checks if CPU supports the MMX instruction set.

Specified by:

hasMMX in interface CPUInfo

Returns:

true iff CPU supports the MMX instruction set.

hasMOVBE

public boolean hasMOVBE()

Description copied from interface: CPUInfo

Checks if CPU supports the MOVBE instruction set.

Specified by:

hasMOVBE in interface CPUInfo

Returns:

true iff the CPU supports the MOVBE instruction set.

hasSSE

public boolean hasSSE()

Description copied from interface: CPUInfo

Checks if CPU supports the SSE instruction set.

Specified by:

hasSSE in interface CPUInfo

Returns:

true iff the CPU supports the SSE instruction set.

hasSSE2

public boolean hasSSE2()

Description copied from interface: CPUInfo

Checks if CPU supports the SSE2 instruction set.

Specified by:

hasSSE2 in interface CPUInfo

Returns:

true iff the CPU supports the SSE2 instruction set.

hasSSE3

public boolean hasSSE3()

Description copied from interface: CPUInfo

Checks if CPU supports the SSE3 instruction set.

Specified by:

hasSSE3 in interface CPUInfo

Returns:

true iff the CPU supports the SSE3 instruction set.

hasSSE41

public boolean hasSSE41()

Description copied from interface: CPUInfo

Checks if CPU supports the SSE4.1 instruction set.

Specified by:

hasSSE41 in interface CPUInfo

Returns:

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

hasSSE42

public boolean hasSSE42()

Description copied from interface: CPUInfo

Checks if CPU supports the SSE4.2 instruction set.

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.

hasTBM

public boolean hasTBM()

Trailing Bit Manipulation (AMD feature)

Specified by:

hasTBM in interface CPUInfo

Returns:

true iff the CPU supports TBM.

hasX64

public boolean hasX64()

Description copied from interface: CPUInfo

Checks if CPU supports the 64-bit support.

Specified by:

hasX64 in interface CPUInfo

Returns:

true iff the CPU supports the 64-bit support