Package com.pnfsoftware.jeb.core.units.code

Class InstructionUtil

java.lang.Object

com.pnfsoftware.jeb.core.units.code.InstructionUtil

public class InstructionUtil
extends Object

Utility methods for IInstruction objects.

Method Summary

Modifier and Type	Method	Description
static IInstructionOperand	getOperand(IInstruction insn, int index)	Safely retrieve an operand.
static <T extends IInstructionOperand> T	getOperand(IInstruction insn, int index, Class<T> c)	Safely retrieve an operand of the expected type.
static int	getSizeOf(List<? extends IInstruction> insns)	Compute the size of all the instruction list.
static int	getSizeUntil(List<? extends IInstruction> insns, int limit)	Compute the size of the instruction list until nth index.

Methods inherited from class java.lang.Object

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

Method Details

getOperand

public static IInstructionOperand getOperand(IInstruction insn,
 int index)

Safely retrieve an operand.

Parameters:

insn - instruction

index - operand index

Returns:

null on error

getOperand

public static <T extends IInstructionOperand> T getOperand(IInstruction insn,
 int index,
 Class<T> c)

Safely retrieve an operand of the expected type.

Type Parameters:

T - operand type

Parameters:

insn - instruction

index - operand index

c - expected operand type

Returns:

null on error

getSizeOf

public static int getSizeOf(List<? extends IInstruction> insns)

Compute the size of all the instruction list.

Parameters:

insns - instruction list

Returns:

the size, in bytes

getSizeUntil

public static int getSizeUntil(List<? extends IInstruction> insns,
 int limit)

Compute the size of the instruction list until nth index.

Parameters:

insns - instruction list

limit - nth index.

Returns:

the size, in bytes