Mercurial > hg > Members > kono > jpf-core

comparison src/main/gov/nasa/jpf/jvm/bytecode/FSTORE.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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-1:000000000000 0:61d41facf527
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.bytecode.StoreInstruction;
21 import gov.nasa.jpf.vm.Instruction;
22 import gov.nasa.jpf.vm.StackFrame;
23 import gov.nasa.jpf.vm.ThreadInfo;
24
25
26 /**
27 * Store float into local variable
28 * ..., value => ...
29 */
30 public class FSTORE extends JVMLocalVariableInstruction implements StoreInstruction {
31
32 public FSTORE(int localVarIndex) {
33 super(localVarIndex);
34 }
35
36 @Override
37 public Instruction execute (ThreadInfo ti) {
38 StackFrame frame = ti.getModifiableTopFrame();
39
40 frame.storeOperand(index);
41
42 return getNext(ti);
43 }
44
45 @Override
46 public int getLength() {
47 if (index > 3){
48 return 2; // opcode, index
49 } else {
50 return 1;
51 }
52 }
53
54 @Override
55 public int getByteCode () {
56 switch (index) {
57 case 0: return 0x43;
58 case 1: return 0x44;
59 case 2: return 0x45;
60 case 3: return 0x46;
61 }
62
63 return 0x38; // ?? wide
64 }
65
66 @Override
67 public String getBaseMnemonic() {
68 return "fstore";
69 }
70
71 @Override
72 public void accept(JVMInstructionVisitor insVisitor) {
73 insVisitor.visit(this);
74 }
75 }