edu.gvsu.dlunit

Class Utilities

java.lang.Object

edu.gvsu.dlunit.Utilities

public class Utilities
extends java.lang.Object

Miscellaneous helper methods

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Utilities.InvalidCircuitException Exception thrown if a circuit file cannot be parsed as a circuit.
static class	Utilities.UnreadableFileException Exception thrown if a file is not accessible or readable.

Constructor Summary

Constructors

Constructor and Description
Utilities()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	intToHex(int theInt, int bitLength)
static int	unsignedToSigned(int value, int width)
static long	unsignedToSigned(long value, int width)
static void	validateMemoryAddress(long address, int capacity, int num_words)
static void	validateValueWidth(long value, int width, boolean signed)
static void	verifyFileIsReadable(java.io.File file) Create File object and throw an exception if the file (1) does not exist, (2) is not readable, or (3) is a directory.

Methods inherited from class java.lang.Object

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

Constructor Detail

Utilities

public Utilities()

Method Detail

verifyFileIsReadable

public static void verifyFileIsReadable(java.io.File file)
                                 throws Utilities.UnreadableFileException

Create File object and throw an exception if the file (1) does not exist, (2) is not readable, or (3) is a directory.

Parameters:

file - the file

Throws:

Utilities.UnreadableFileException - if the file either does not exist, or is otherwise not readable

intToHex

public static java.lang.String intToHex(int theInt,
                                        int bitLength)
                                 throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

validateValueWidth

public static void validateValueWidth(long value,
                                      int width,
                                      boolean signed)
                               throws InvalidWidthException

Throws:

InvalidWidthException

validateMemoryAddress

public static void validateMemoryAddress(long address,
                                         int capacity,
                                         int num_words)
                                  throws IllegalValueException,
                                         InvalidWidthException

Throws:

IllegalValueException

InvalidWidthException

unsignedToSigned

public static int unsignedToSigned(int value,
                                   int width)

unsignedToSigned

public static long unsignedToSigned(long value,
                                    int width)