2 * Copyright (C) 2014, United States Government, as represented by the
3 * Administrator of the National Aeronautics and Space Administration.
6 * The Java Pathfinder core (jpf-core) platform is licensed under the
7 * Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0.
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 package gov.nasa.jpf.jvm.bytecode;
20 import gov.nasa.jpf.vm.Instruction;
21 import gov.nasa.jpf.vm.StackFrame;
22 import gov.nasa.jpf.vm.ThreadInfo;
26 * Increment local variable by constant
29 public class IINC extends Instruction implements JVMInstruction {
32 protected int increment;
34 public IINC(int localVarIndex, int increment) {
35 this.index = localVarIndex;
36 this.increment = increment;
40 public Instruction execute(ThreadInfo ti) {
41 StackFrame frame = ti.getModifiableTopFrame();
43 int v = frame.getLocalVariable(index);
46 frame.setLocalVariable(index, v, false);
52 public int getLength() {
53 return 3; // opcode, index, const
57 public int getByteCode() {
58 return 0x84; // ?? wide
62 public void accept(JVMInstructionVisitor insVisitor) {
63 insVisitor.visit(this);
66 public int getIndex() {
70 public int getIncrement() {
75 public String toPostExecString() {
76 return "iinc " + index + ' ' + increment;