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.ArrayIndexOutOfBoundsExecutiveException;
21 import gov.nasa.jpf.vm.BooleanArrayFields;
22 import gov.nasa.jpf.vm.ByteArrayFields;
23 import gov.nasa.jpf.vm.ElementInfo;
24 import gov.nasa.jpf.vm.Fields;
25 import gov.nasa.jpf.vm.StackFrame;
29 * Load byte or boolean from array
30 * ..., arrayref, index => ..., value
32 public class BALOAD extends ArrayLoadInstruction {
35 protected void push (StackFrame frame, ElementInfo ei, int index) throws ArrayIndexOutOfBoundsExecutiveException {
36 ei.checkArrayBounds(index);
39 Fields f = ei.getFields();
40 if (f instanceof ByteArrayFields){
41 value = ei.getByteElement(index);
42 } else if (f instanceof BooleanArrayFields){
43 value = ei.getBooleanElement(index) ? 1 : 0;
51 public int getByteCode () {
56 public void accept(JVMInstructionVisitor insVisitor) {
57 insVisitor.visit(this);