Mercurial > hg > Members > kono > jpf-core
annotate src/main/gov/nasa/jpf/jvm/bytecode/LCONST.java @ 0:61d41facf527
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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 /* |
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2 * Copyright (C) 2014, United States Government, as represented by the |
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3 * Administrator of the National Aeronautics and Space Administration. |
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4 * All rights reserved. |
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5 * |
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6 * The Java Pathfinder core (jpf-core) platform is licensed under the |
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7 * Apache License, Version 2.0 (the "License"); you may not use this file except |
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8 * in compliance with the License. You may obtain a copy of the License at |
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9 * |
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10 * http://www.apache.org/licenses/LICENSE-2.0. |
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11 * |
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12 * Unless required by applicable law or agreed to in writing, software |
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13 * distributed under the License is distributed on an "AS IS" BASIS, |
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14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 * See the License for the specific language governing permissions and |
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16 * limitations under the License. |
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17 */ |
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18 package gov.nasa.jpf.jvm.bytecode; |
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19 |
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20 import gov.nasa.jpf.vm.Instruction; |
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21 import gov.nasa.jpf.vm.StackFrame; |
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22 import gov.nasa.jpf.vm.ThreadInfo; |
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23 |
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24 |
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25 /** |
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26 * Push long constant |
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27 * ... => ..., <l> |
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28 */ |
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29 public class LCONST extends Instruction implements JVMInstruction { |
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30 protected long value; |
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31 |
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32 |
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33 public LCONST(long value){ |
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34 this.value = value; |
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35 } |
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36 |
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37 @Override |
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38 public Instruction execute (ThreadInfo ti) { |
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39 StackFrame frame = ti.getModifiableTopFrame(); |
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40 |
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41 frame.pushLong(value); |
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42 |
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43 return getNext(ti); |
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44 } |
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45 |
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46 @Override |
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47 public int getByteCode () { |
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48 if (value == 0) { |
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49 return 0x09; |
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50 } else { |
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51 return 0x0a; |
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52 } |
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53 } |
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54 |
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55 @Override |
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56 public String getMnemonic () { |
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57 if (value == 0) { |
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58 return "lconst_0"; |
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59 } else { |
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60 return "lconst_1"; |
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61 } |
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62 } |
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63 |
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64 @Override |
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65 public void accept(JVMInstructionVisitor insVisitor) { |
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66 insVisitor.visit(this); |
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67 } |
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68 |
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69 public long getValue() { |
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70 return value; |
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71 } |
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72 |
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73 } |