Package ghidra.pcode.utils

Class Utils

java.lang.Object

ghidra.pcode.utils.Utils

public class Utils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final String	endl

Constructor Summary

Constructors

Constructor	Description
Utils()

Method Summary

Modifier and Type	Method	Description
static byte[]	bigIntegerToBytes(BigInteger val, int size, boolean bigEndian)
static long	byte_swap(long val, int size)	Swap the least-significant bytes of the given value
static BigInteger	bytesToBigInteger(byte[] byteBuf, int size, boolean bigEndian, boolean signed)
static long	bytesToLong(byte[] byteBuf, int size, boolean bigEndian)
static BigInteger	calc_bigmask(int size)
static long	calc_mask(int size)
static BigInteger	convertToSignedValue(BigInteger val, int byteSize)
static BigInteger	convertToUnsignedValue(BigInteger val, int byteSize)
static byte[]	longToBytes(long val, int size, boolean bigEndian)
static long	sign_extend(long in, int sizein, int sizeout)
static boolean	signbit_negative(long val, int size)	Returns true if signbit is set (negative).
static long	uintb_negate(long in, int size)
static long	zzz_sign_extend(long val, int bit)
static long	zzz_zero_extend(long val, int bit)

Methods inherited from class java.lang.Object

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

Field Details

endl

public static final String endl

Constructor Details

Utils

public Utils()

Method Details

convertToSignedValue

public static BigInteger convertToSignedValue(BigInteger val,
 int byteSize)

convertToUnsignedValue

public static BigInteger convertToUnsignedValue(BigInteger val,
 int byteSize)

calc_mask

public static long calc_mask(int size)

calc_bigmask

public static BigInteger calc_bigmask(int size)

signbit_negative

public static boolean signbit_negative(long val,
 int size)

Returns true if signbit is set (negative).

Parameters:

val - the raw value as a long

size - the actual size (in bytes) of the value

Returns:

true if signbit is set (negative)

uintb_negate

public static long uintb_negate(long in,
 int size)

sign_extend

public static long sign_extend(long in,
 int sizein,
 int sizeout)

zzz_sign_extend

public static long zzz_sign_extend(long val,
 int bit)

zzz_zero_extend

public static long zzz_zero_extend(long val,
 int bit)

byte_swap

public static long byte_swap(long val,
 int size)

Swap the least-significant bytes of the given value

The size must be less than 8, as that is the largest possible size of the given value. If size is larger than 8, there may be undefined behavior, e.g., bytes getting truncated.

Parameters:

val - the value whose bytes to swap

size - the number of least-signifcant bytes to swap

Returns:

the value with the swapped bytes

bytesToLong

public static long bytesToLong(byte[] byteBuf,
 int size,
 boolean bigEndian)

longToBytes

public static byte[] longToBytes(long val,
 int size,
 boolean bigEndian)

bytesToBigInteger

public static BigInteger bytesToBigInteger(byte[] byteBuf,
 int size,
 boolean bigEndian,
 boolean signed)

bigIntegerToBytes

public static byte[] bigIntegerToBytes(BigInteger val,
 int size,
 boolean bigEndian)