1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package dexfuzz.rawdex.formats;
18 
19 import dexfuzz.rawdex.DexRandomAccessFile;
20 import dexfuzz.rawdex.Instruction;
21 import dexfuzz.rawdex.Opcode;
22 import dexfuzz.rawdex.OpcodeInfo;
23 
24 import java.io.IOException;
25 
26 public class Format35c extends Format3 implements ContainsPoolIndex {
27   @Override
writeToFile(DexRandomAccessFile file, Instruction insn)28   public void writeToFile(DexRandomAccessFile file, Instruction insn) throws IOException {
29     file.writeByte((byte) insn.info.value);
30     file.writeByte((byte) (insn.invokeFormatInfo.vregG | (insn.vregA << 4)));
31     file.writeUShort((short) insn.vregB);
32     file.writeByte((byte) ((insn.invokeFormatInfo.vregD << 4) | insn.vregC));
33     file.writeByte((byte) ((insn.invokeFormatInfo.vregF << 4)
34         | insn.invokeFormatInfo.vregE));
35     return;
36   }
37 
38   @Override
getA(byte[] raw)39   public long getA(byte[] raw) throws IOException {
40     return RawInsnHelper.getUnsignedHighNibbleFromByte(raw, 1);
41   }
42 
43   @Override
getB(byte[] raw)44   public long getB(byte[] raw) throws IOException {
45     return RawInsnHelper.getUnsignedShortFromTwoBytes(raw, 2);
46   }
47 
48   @Override
getC(byte[] raw)49   public long getC(byte[] raw) throws IOException {
50     return RawInsnHelper.getUnsignedLowNibbleFromByte(raw, 4);
51   }
52 
53   @Override
needsInvokeFormatInfo()54   public boolean needsInvokeFormatInfo() {
55     return true;
56   }
57 
58   @Override
getPoolIndex(Instruction insn)59   public int getPoolIndex(Instruction insn) {
60     return (int) insn.vregB;
61   }
62 
63   @Override
setPoolIndex(Instruction insn, int poolIndex)64   public void setPoolIndex(Instruction insn, int poolIndex) {
65     insn.vregB = poolIndex;
66   }
67 
68   @Override
getPoolIndexKind(OpcodeInfo info)69   public PoolIndexKind getPoolIndexKind(OpcodeInfo info) {
70     if (info.opcode == Opcode.FILLED_NEW_ARRAY) {
71       return PoolIndexKind.Type;
72     }
73     return PoolIndexKind.Method;
74   }
75 }
76