jdk.internal.jvmci.code

Class UnsignedMath

java.lang.Object

jdk.internal.jvmci.code.UnsignedMath

public class UnsignedMath
extends Object

Utilities for unsigned comparisons. All methods have correct, but slow, standard Java implementations so that they can be used with compilers not supporting the intrinsics.

Field Summary

Fields

Modifier and Type	Field and Description
private static long	MASK

Constructor Summary

Constructors

Constructor and Description
UnsignedMath()

Method Summary

Modifier and Type	Method and Description
static boolean	aboveOrEqual(int a, int b) Unsigned comparison aboveOrEqual for two numbers.
static boolean	aboveOrEqual(long a, long b) Unsigned comparison aboveOrEqual for two numbers.
static boolean	aboveThan(int a, int b) Unsigned comparison aboveThan for two numbers.
static boolean	aboveThan(long a, long b) Unsigned comparison aboveThan for two numbers.
static boolean	belowOrEqual(int a, int b) Unsigned comparison belowOrEqual for two numbers.
static boolean	belowOrEqual(long a, long b) Unsigned comparison belowOrEqual for two numbers.
static boolean	belowThan(int a, int b) Unsigned comparison belowThan for two numbers.
static boolean	belowThan(long a, long b) Unsigned comparison belowThan for two numbers.
private static BigInteger	bi(long unsigned)
static int	divide(int a, int b) Unsigned division for two numbers.
static long	divide(long a, long b) Unsigned division for two numbers.
static int	remainder(int a, int b) Unsigned remainder for two numbers.
static long	remainder(long a, long b) Unsigned remainder for two numbers.

Methods inherited from class java.lang.Object

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

Field Detail

MASK

private static final long MASK

See Also:

Constant Field Values

Constructor Detail

UnsignedMath

public UnsignedMath()

Method Detail

aboveThan

public static boolean aboveThan(int a,
                                int b)

Unsigned comparison aboveThan for two numbers.

aboveOrEqual

public static boolean aboveOrEqual(int a,
                                   int b)

Unsigned comparison aboveOrEqual for two numbers.

belowThan

public static boolean belowThan(int a,
                                int b)

Unsigned comparison belowThan for two numbers.

belowOrEqual

public static boolean belowOrEqual(int a,
                                   int b)

Unsigned comparison belowOrEqual for two numbers.

aboveThan

public static boolean aboveThan(long a,
                                long b)

Unsigned comparison aboveThan for two numbers.

aboveOrEqual

public static boolean aboveOrEqual(long a,
                                   long b)

Unsigned comparison aboveOrEqual for two numbers.

belowThan

public static boolean belowThan(long a,
                                long b)

Unsigned comparison belowThan for two numbers.

belowOrEqual

public static boolean belowOrEqual(long a,
                                   long b)

Unsigned comparison belowOrEqual for two numbers.

divide

public static int divide(int a,
                         int b)

Unsigned division for two numbers.

remainder

public static int remainder(int a,
                            int b)

Unsigned remainder for two numbers.

divide

public static long divide(long a,
                          long b)

Unsigned division for two numbers.

remainder

public static long remainder(long a,
                             long b)

Unsigned remainder for two numbers.

bi

private static BigInteger bi(long unsigned)