Mercurial > hg > Members > kono > jpf-core
view src/main/gov/nasa/jpf/jvm/bytecode/LDC2_W.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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/* * Copyright (C) 2014, United States Government, as represented by the * Administrator of the National Aeronautics and Space Administration. * All rights reserved. * * The Java Pathfinder core (jpf-core) platform is licensed under the * Apache License, Version 2.0 (the "License"); you may not use this file except * in compliance with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0. * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package gov.nasa.jpf.jvm.bytecode; import gov.nasa.jpf.vm.Instruction; import gov.nasa.jpf.vm.StackFrame; import gov.nasa.jpf.vm.ThreadInfo; /** * Push long or double from runtime constant pool (wide index) * ... => ..., value */ public class LDC2_W extends Instruction implements JVMInstruction { public enum Type {LONG, DOUBLE}; protected Type type; protected long value; public LDC2_W(long l){ value = l; type = Type.LONG; } public LDC2_W(double d){ value = Double.doubleToLongBits(d); type = Type.DOUBLE; } @Override public Instruction execute (ThreadInfo ti) { StackFrame frame = ti.getModifiableTopFrame(); frame.pushLong(value); return getNext(ti); } @Override public int getLength() { return 3; // opcode, index1, index2 } @Override public int getByteCode () { return 0x14; } public Type getType() { return type; } public double getDoubleValue(){ if(type!=Type.DOUBLE){ throw new IllegalStateException(); } return Double.longBitsToDouble(value); } public long getValue() { return value; } @Override public void accept(JVMInstructionVisitor insVisitor) { insVisitor.visit(this); } }