nz.net.juju.jaune
Class CodeInput

java.lang.Object
  |
  +--nz.net.juju.jaune.CodeInput

public class CodeInput

extends java.lang.Object

Provides a simple wrapper around the actual code bytes of a method including access methods for words and dwords, and a way of tracking the value of the program counter.

Constructor Summary

CodeInput(java.io.InputStream in)

Method Summary

int	getPC() Returns the current offset in the code.
int	readByte() Returns an unsigned 8 bit value
int	readSignedByte() Returns a signed 8 bit value
int	readSignedDWord() Returns a signed 32 bit value
int	readSignedWord() Returns a signed 16 bit value
void	readToBoundary(int mod) Reads from the input until the PC is at a multiple of mod.
int	readWord() Returns a unsigned 16 bit value

Methods inherited from class java.lang.Object

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

Constructor Detail

CodeInput

public CodeInput(java.io.InputStream in)

Method Detail

getPC

public int getPC()

Returns the current offset in the code. Is updated by every read* method.

readWord

public int readWord()
             throws java.io.IOException

Returns a unsigned 16 bit value

readSignedWord

public int readSignedWord()
                   throws java.io.IOException

Returns a signed 16 bit value

readSignedDWord

public int readSignedDWord()
                    throws java.io.IOException

Returns a signed 32 bit value

readByte

public int readByte()
             throws java.io.IOException

Returns an unsigned 8 bit value

readSignedByte

public int readSignedByte()
                   throws java.io.IOException

Returns a signed 8 bit value

readToBoundary

public void readToBoundary(int mod)
                    throws java.io.IOException

Reads from the input until the PC is at a multiple of mod.