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
17package dexfuzz.rawdex.formats;
18
19import dexfuzz.rawdex.DexRandomAccessFile;
20import dexfuzz.rawdex.Instruction;
21
22import java.io.IOException;
23
24public class Format11n extends Format1 implements ContainsConst, ContainsVRegs {
25  @Override
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    return;
30  }
31
32  @Override
33  public long getA(byte[] raw) throws IOException {
34    return RawInsnHelper.getUnsignedLowNibbleFromByte(raw, 1);
35  }
36
37  @Override
38  public long getB(byte[] raw) throws IOException {
39    return RawInsnHelper.getUnsignedHighNibbleFromByte(raw, 1);
40  }
41
42  @Override
43  public long getC(byte[] raw) throws IOException {
44    return (long) 0;
45  }
46
47  @Override
48  public long getConst(Instruction insn) {
49    return insn.vregB;
50  }
51
52  @Override
53  public void setConst(Instruction insn, long constant) {
54    insn.vregB = constant;
55  }
56
57  @Override
58  public long getConstRange() {
59    return (1 << 4);
60  }
61
62  @Override
63  public int getVRegCount() {
64    return 1;
65  }
66}
67