01: //
02: // Copyright (C) 2005 United States Government as represented by the
03: // Administrator of the National Aeronautics and Space Administration
04: // (NASA). All Rights Reserved.
05: //
06: // This software is distributed under the NASA Open Source Agreement
07: // (NOSA), version 1.3. The NOSA has been approved by the Open Source
08: // Initiative. See the file NOSA-1.3-JPF at the top of the distribution
09: // directory tree for the complete NOSA document.
10: //
11: // THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
12: // KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
13: // LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
14: // SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
15: // A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
16: // THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
17: // DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
18: //
19: package gov.nasa.jpf.jvm.bytecode;
20:
21: import gov.nasa.jpf.jvm.ClassInfo;
22: import gov.nasa.jpf.jvm.KernelState;
23: import gov.nasa.jpf.jvm.SystemState;
24: import gov.nasa.jpf.jvm.ThreadInfo;
25: import gov.nasa.jpf.jvm.Types;
26:
27: import org.apache.bcel.classfile.ConstantDouble;
28: import org.apache.bcel.classfile.ConstantLong;
29: import org.apache.bcel.classfile.ConstantPool;
30: import org.apache.bcel.generic.ConstantPoolGen;
31: import org.apache.bcel.generic.Type;
32:
33: /**
34: * Push long or double from runtime constant pool (wide index)
35: * ... => ..., value
36: */
37: public class LDC2_W extends Instruction {
38: private long value;
39:
40: public void setPeer(org.apache.bcel.generic.Instruction i,
41: ConstantPool cp) {
42: ConstantPoolGen cpg = ClassInfo.getConstantPoolGen(cp);
43: Type type = ((org.apache.bcel.generic.LDC2_W) i).getType(cpg);
44:
45: if (type == Type.LONG) {
46: value = ((ConstantLong) cp
47: .getConstant(((org.apache.bcel.generic.LDC2_W) i)
48: .getIndex())).getBytes();
49: } else {
50: value = Types.doubleToLong(((ConstantDouble) cp
51: .getConstant(((org.apache.bcel.generic.LDC2_W) i)
52: .getIndex())).getBytes());
53: }
54: }
55:
56: public Instruction execute(SystemState ss, KernelState ks,
57: ThreadInfo th) {
58: th.longPush(value);
59:
60: return getNext(th);
61: }
62:
63: public int getByteCode() {
64: return 0x14;
65: }
66: }
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