//
// Copyright (C) 2006 United States Government as represented by the
// Administrator of the National Aeronautics and Space Administration
// (NASA). All Rights Reserved.
//
// This software is distributed under the NASA Open Source Agreement
// (NOSA), version 1.3. The NOSA has been approved by the Open Source
// Initiative. See the file NOSA-1.3-JPF at the top of the distribution
// directory tree for the complete NOSA document.
//
// THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
// KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
// LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
// SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
// A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
// THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
// DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
//
package gov.nasa.jpf.jvm.bytecode;
import cmu.conditional.Conditional;
import de.fosd.typechef.featureexpr.FeatureExpr;
import gov.nasa.jpf.vm.Instruction;
import gov.nasa.jpf.vm.StackFrame;
import gov.nasa.jpf.vm.ThreadInfo;
/**
* Increment local variable by constant No change
*/
public class IINC extends LocalVariableInstruction {
protected int increment;
public IINC(int localVarIndex, int increment) {
super(localVarIndex);
this.increment = increment;
}
@Override
public Conditional<Instruction> execute(final FeatureExpr ctx, ThreadInfo ti) {
StackFrame frame = ti.getModifiableTopFrame();
frame.IINC(ctx, index, increment);
return getNext(ctx, ti);
}
public int getLength() {
return 3; // opcode, index, const
}
@Override
public int getByteCode() {
return 0x84; // ?? wide
}
@Override
public void accept(InstructionVisitor insVisitor) {
insVisitor.visit(this);
}
public int getIndex() {
return index;
}
public int getIncrement() {
return increment;
}
@Override
public String getBaseMnemonic() {
return "iinc";
}
}