Mercurial > hg > Members > kono > jpf-core

comparison src/main/gov/nasa/jpf/jvm/bytecode/BIPUSH.java @ 0:61d41facf527

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initial v8 import (history reset)
author Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
date Fri, 23 Jan 2015 10:14:01 -0800
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1 /*
2 * Copyright (C) 2014, United States Government, as represented by the
3 * Administrator of the National Aeronautics and Space Administration.
4 * All rights reserved.
5 *
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
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0.
11 *
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.
17 */
18 package gov.nasa.jpf.jvm.bytecode;
19
20 import gov.nasa.jpf.vm.Instruction;
21 import gov.nasa.jpf.vm.StackFrame;
22 import gov.nasa.jpf.vm.ThreadInfo;
23
24
25 /**
26 * Push byte
27 * ... => ..., value
28 */
29 public class BIPUSH extends Instruction implements JVMInstruction {
30 private int value;
31
32 public BIPUSH() {} // this is going away
33
34 public BIPUSH(int value){
35 this.value = value;
36 }
37
38 @Override
39 public Instruction execute (ThreadInfo ti) {
40 StackFrame frame = ti.getModifiableTopFrame();
41
42 frame.push(value);
43
44 return getNext(ti);
45 }
46
47 public int getValue(){
48 return value;
49 }
50
51 @Override
52 public int getLength() {
53 return 2; // opcode, byte
54 }
55
56 @Override
57 public int getByteCode () {
58 return 0x10;
59 }
60
61 @Override
62 public void accept(JVMInstructionVisitor insVisitor) {
63 insVisitor.visit(this);
64 }
65 }