org.vishia.util

Class Num

java.lang.Object

org.vishia.util.Num

public class Num
extends java.lang.Object

Contains some numeric operations able to use in JzTxtCmd

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	version Version, history and license.

Constructor Summary

Constructors

Constructor and Description
Num()

Method Summary

Modifier and Type	Method and Description
static short	shBits16From(short src, int bitPos, int nrofBits)
static short	shBits16To(short src, int bitPos, int nrofBits)
static int	shBits32From(int src, int bitPos, int nrofBits)
static int	shBits32To(int src, int bitPos, int nrofBits)
static long	shBits64From(long src, int bitPos, int nrofBits)
static long	shBits64To(long src, int bitPos, int nrofBits)
static short	shMask16From(short src, int bitPos, int mask)
static short	shMask16To(short src, int bitPos, int mask)
static int	shMask32From(int src, int bitPos, int mask) Shift the src from bitPos and mask after them.
static int	shMask32To(int src, int bitPos, int mask) Shift the src to bitPos and mask after them.
static long	shMask64From(long src, int bitPos, int mask)
static long	shMask64To(long src, int bitPos, int mask)

Methods inherited from class java.lang.Object

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

Field Detail

version

public static final java.lang.String version

Version, history and license.

• 2018-08-29 Hartmut new:

Copyright/Copyleft: For this source the LGPL Lesser General Public License, published by the Free Software Foundation is valid. It means:

1. You can use this source without any restriction for any desired purpose.
2. You can redistribute copies of this source to everybody.
3. Every user of this source, also the user of redistribute copies with or without payment, must accept this license for further using.
4. But the LPGL is not appropriate for a whole software product, if this source is only a part of them. It means, the user must publish this part of source, but don't need to publish the whole source of the own product.
5. You can study and modify (improve) this source for own using or for redistribution, but you have to license the modified sources likewise under this LGPL Lesser General Public License. You mustn't delete this Copyright/Copyleft inscription in this source file.

If you are intent to use this sources without publishing its usage, you can get a second license subscribing a special contract with the author.

See Also:

Constant Field Values

Constructor Detail

Num

public Num()

Method Detail

shBits32To

public static int shBits32To(int src,
                             int bitPos,
                             int nrofBits)

shBits32From

public static int shBits32From(int src,
                               int bitPos,
                               int nrofBits)

shBits64To

public static long shBits64To(long src,
                              int bitPos,
                              int nrofBits)

shBits64From

public static long shBits64From(long src,
                                int bitPos,
                                int nrofBits)

shBits16To

public static short shBits16To(short src,
                               int bitPos,
                               int nrofBits)

shBits16From

public static short shBits16From(short src,
                                 int bitPos,
                                 int nrofBits)

shMask32To

public static int shMask32To(int src,
                             int bitPos,
                             int mask)

Shift the src to bitPos and mask after them.

Parameters:

src - any number usual 0...n

bitPos - positive: shift left.

mask - regarded to the return value bitPos

Returns:

for example shMask32To(0xeeee5, 4, 0x00f0) results in 0x50

shMask32From

public static int shMask32From(int src,
                               int bitPos,
                               int mask)

Shift the src from bitPos and mask after them.

Parameters:

src - any bit combination

bitPos - positive: shift right.

mask - regarded to the return value bitPos

Returns:

for example shMask32To(0xeee5e, 4, 0x000f) results in 0x5

shMask64To

public static long shMask64To(long src,
                              int bitPos,
                              int mask)

shMask64From

public static long shMask64From(long src,
                                int bitPos,
                                int mask)

shMask16To

public static short shMask16To(short src,
                               int bitPos,
                               int mask)

shMask16From

public static short shMask16From(short src,
                                 int bitPos,
                                 int mask)