com.monkeycoder.monkeynes.base
Class MathHelper

java.lang.Object
  |
  +--com.monkeycoder.monkeynes.base.MathHelper

public class MathHelper

extends Object

This class provdes several math related convenience constructs.

Originally part of the MonkeyNes project.

Author:

David Stephens

Field Summary

static int[]	bitMask This array allows access to individual bits.
static int[]	byteMask This array allows access to individual bytes.
static int[]	nibbleMask This array allows access to individual nibbles.

Method Summary

static String	getBinaryString8(int inInt) Builds a 0 padded 8-bit binary string from an integer.
static String	getHexString(int inInt) Builds a 0 padded 32-bit hexidecimal string from an integer.
static String	getHexString16(int inInt) Builds a 0 padded 16-bit hexidecimal string from an integer.
static String	getHexString8(int inInt) Builds a 0 padded 8-bit hexidecimal string from an integer.
static int	getWrappedAddress(int addr) Forces an address to stay within the 64k range by wrapping it.
static int	getWrappedByte(int addr) Forces a byte to stay within the 0-255 range by wrapping it.

Methods inherited from class java.lang.Object

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

Field Detail

bitMask

public static final int[] bitMask

This array allows access to individual bits.

nibbleMask

public static final int[] nibbleMask

This array allows access to individual nibbles.

byteMask

public static final int[] byteMask

This array allows access to individual bytes.

Method Detail

getWrappedAddress

public static int getWrappedAddress(int addr)

Forces an address to stay within the 64k range by wrapping it.

Parameters:

addr - The address to access.

Returns:

The wrapped address.

getWrappedByte

public static int getWrappedByte(int addr)

Forces a byte to stay within the 0-255 range by wrapping it.

Parameters:

addr - The address to access.

Returns:

The wrapped address.

getHexString

public static String getHexString(int inInt)

Builds a 0 padded 32-bit hexidecimal string from an integer.

Parameters:

inInt - The number to convert into a hexidecimal string.

Returns:

The converted string.

getHexString8

public static String getHexString8(int inInt)

Builds a 0 padded 8-bit hexidecimal string from an integer.

Parameters:

inInt - The number to convert into a hexidecimal string.

Returns:

The converted string.

getHexString16

public static String getHexString16(int inInt)

Builds a 0 padded 16-bit hexidecimal string from an integer.

Parameters:

inInt - The number to convert into a hexidecimal string.

Returns:

The converted string.

getBinaryString8

public static String getBinaryString8(int inInt)

Builds a 0 padded 8-bit binary string from an integer.

Parameters:

inInt - The number to convert into a binary string.

Returns:

The converted string.