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sun.jvm.hotspot.debugger

public abstract Class MachineDescriptionTwosComplement

Class Inheritance

extends Object

java.lang.Object
sun.jvm.hotspot.debugger.MachineDescriptionTwosComplement

Known Direct Subclasses

sun.jvm.hotspot.debugger.MachineDescriptionAArch64, sun.jvm.hotspot.debugger.MachineDescriptionAMD64, sun.jvm.hotspot.debugger.MachineDescriptionPPC64, sun.jvm.hotspot.debugger.MachineDescriptionRISCV64

Base class for all twos-complement machine descriptions, which handles the cIntegerType{Min,Max}Value methods.

Field Summary

Modifier and Type	Field and Description
private static final long[]	signedMaxValues Handles 1, 2, 4, and 8-byte signed integers
private static final long[]	signedMinValues Handles 1, 2, 4, and 8-byte signed integers
private static final long[]	unsignedMaxValues Handles 1, 2, and 4-byte unsigned integers properly, with a bug in the 8-byte unsigned integer's constant

Constructor Summary

Access	Constructor and Description
public	MachineDescriptionTwosComplement()

Method Summary

Modifier and Type	Method and Description
public long	cIntegerTypeMaxValue(long sizeInBytes, boolean isUnsigned)
public long	cIntegerTypeMinValue(long sizeInBytes, boolean isUnsigned)
public boolean	isLP64()
private long	tableLookup(long sizeInBytes, long[] table)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

signedMaxValues	back to summary
private static final long[] signedMaxValues Handles 1, 2, 4, and 8-byte signed integers

signedMinValues	back to summary
private static final long[] signedMinValues Handles 1, 2, 4, and 8-byte signed integers

unsignedMaxValues	back to summary
private static final long[] unsignedMaxValues Handles 1, 2, and 4-byte unsigned integers properly, with a bug in the 8-byte unsigned integer's constant

Constructor Detail

MachineDescriptionTwosComplement	back to summary
public MachineDescriptionTwosComplement()

Method Detail

cIntegerTypeMaxValue	back to summary
public long cIntegerTypeMaxValue(long sizeInBytes, boolean isUnsigned)

cIntegerTypeMinValue	back to summary
public long cIntegerTypeMinValue(long sizeInBytes, boolean isUnsigned)

isLP64	back to summary
public boolean isLP64()

tableLookup	back to summary
private long tableLookup(long sizeInBytes, long[] table)