Package freenet.support.CPUInformation

Class CPUID

java.lang.Object

freenet.support.CPUInformation.CPUID

public class CPUID
extends Object

A class for retrieveing details about the CPU using the CPUID assembly instruction. Ref: http://en.wikipedia.org/wiki/Cpuid

Author:

Iakin

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	CPUID.CPUIDResult	A class that can (amongst other things I assume) represent the state of the different CPU registers after a call to the CPUID assembly method

Constructor Summary

Constructors

Constructor	Description
CPUID()

Method Summary

Modifier and Type	Method	Description
(package private) static int	getCPUExtendedFamily()	Only valid if family == 15.
(package private) static int	getCPUExtendedModel()	Only valid if family == 15, or, for Intel only, family == 6.
(package private) static int	getCPUFamily()
(package private) static int	getCPUModel()
(package private) static String	getCPUModelName()	The model name string, up to 48 characters, as reported by the processor itself.
(package private) static int	getCPUStepping()
(package private) static int	getCPUType()
(package private) static String	getCPUVendorID()
(package private) static int	getECXCPUFlags()
(package private) static int	getEDXCPUFlags()
(package private) static int	getExtendedEBXFeatureFlags()
(package private) static int	getExtendedECXCPUFlags()
(package private) static int	getExtendedECXFeatureFlags()	There's almost nothing in here.
(package private) static int	getExtendedEDXCPUFlags()
static CPUInfo	getInfo()	Returns a CPUInfo item for the current type of CPU If I could I would declare this method in a interface named CPUInfoProvider and implement that interface in this class.
static int	getJcpuidVersion()	Return the jcpuid version
static void	main(String[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

CPUID

public CPUID()

Method Detail

getJcpuidVersion

public static int getJcpuidVersion()

Return the jcpuid version

Returns:

0 if no jcpuid available, 2 if version not supported

Since:

0.9.26

getCPUVendorID

static String getCPUVendorID()

getCPUFamily

static int getCPUFamily()

Returns:

0-15

getCPUModel

static int getCPUModel()

Returns:

0-15

getCPUExtendedModel

static int getCPUExtendedModel()

Only valid if family == 15, or, for Intel only, family == 6. Left shift by 4 and then add model to get full model.

Returns:

0-15

getCPUType

static int getCPUType()

Returns:

0-15

getCPUExtendedFamily

static int getCPUExtendedFamily()

Only valid if family == 15. Add family to get full family.

Returns:

0-255

getCPUStepping

static int getCPUStepping()

Returns:

0-15

getEDXCPUFlags

static int getEDXCPUFlags()

getECXCPUFlags

static int getECXCPUFlags()

getExtendedECXCPUFlags

static int getExtendedECXCPUFlags()

getExtendedEDXCPUFlags

static int getExtendedEDXCPUFlags()

Since:

0.8.7

getExtendedEBXFeatureFlags

static int getExtendedEBXFeatureFlags()

Since:

0.9.26

getExtendedECXFeatureFlags

static int getExtendedECXFeatureFlags()

There's almost nothing in here.

Since:

0.9.26

getCPUModelName

static String getCPUModelName()

The model name string, up to 48 characters, as reported by the processor itself.

Returns:

trimmed string, null if unsupported

Since:

0.9.16

getInfo

public static CPUInfo getInfo()
                       throws UnknownCPUException

Returns a CPUInfo item for the current type of CPU If I could I would declare this method in a interface named CPUInfoProvider and implement that interface in this class. This would make it easier for other people to understand that there is nothing preventing them from coding up new providers, probably using other detection methods than the x86-only CPUID instruction

Throws:

UnknownCPUException

main

public static void main(String[] args)