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 
22 import java.io.IOException;
23 
24 public class Format22t extends Format2 implements ContainsTarget, ContainsVRegs {
25   @Override
writeToFile(DexRandomAccessFile file, Instruction insn)26   public void writeToFile(DexRandomAccessFile file, Instruction insn) throws IOException {
27     file.writeByte((byte) insn.info.value);
28     file.writeByte((byte) (insn.vregA | (insn.vregB << 4)));
29     file.writeUShort((short) insn.vregC);
30     return;
31   }
32 
33   @Override
getA(byte[] raw)34   public long getA(byte[] raw) throws IOException {
35     return RawInsnHelper.getUnsignedLowNibbleFromByte(raw, 1);
36   }
37 
38   @Override
getB(byte[] raw)39   public long getB(byte[] raw) throws IOException {
40     return RawInsnHelper.getUnsignedHighNibbleFromByte(raw, 1);
41   }
42 
43   @Override
getC(byte[] raw)44   public long getC(byte[] raw) throws IOException {
45     return RawInsnHelper.getSignedShortFromTwoBytes(raw, 2);
46   }
47 
48   @Override
getTarget(Instruction insn)49   public long getTarget(Instruction insn) {
50     return insn.vregC;
51   }
52 
53   @Override
setTarget(Instruction insn, long target)54   public void setTarget(Instruction insn, long target) {
55     insn.vregC = target;
56   }
57 
58   @Override
getVRegCount()59   public int getVRegCount() {
60     return 2;
61   }
62 }
63