Mercurial > hg > Members > kono > jpf-core
comparison src/main/gov/nasa/jpf/jvm/bytecode/DADD.java @ 0:61d41facf527
initial v8 import (history reset)
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
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date | Fri, 23 Jan 2015 10:14:01 -0800 |
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-1:000000000000 | 0:61d41facf527 |
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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 * Add double | |
27 * ..., value1, value2 => ..., result | |
28 */ | |
29 public class DADD extends Instruction implements JVMInstruction { | |
30 | |
31 @Override | |
32 public Instruction execute (ThreadInfo ti) { | |
33 StackFrame frame = ti.getModifiableTopFrame(); | |
34 | |
35 double v1 = frame.popDouble(); | |
36 double v2 = frame.popDouble(); | |
37 | |
38 double r = v1 + v2; | |
39 | |
40 frame.pushDouble(r); | |
41 | |
42 return getNext(ti); | |
43 } | |
44 | |
45 @Override | |
46 public int getByteCode () { | |
47 return 0x63; | |
48 } | |
49 | |
50 @Override | |
51 public void accept(JVMInstructionVisitor insVisitor) { | |
52 insVisitor.visit(this); | |
53 } | |
54 } |