TwoRegisterDecodedInstruction.java revision 579d7739c53a2707ad711a2d2cae46d7d782f061 
1/*
2 * Copyright (C) 2011 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 com.android.dx.io.instructions;
18
19import com.android.dx.io.IndexType;
20
21/**
22 * A decoded Dalvik instruction which has two register arguments.
23 */
24public final class TwoRegisterDecodedInstruction extends DecodedInstruction {
25    /** register argument "A" */
26    private final int a;
27
28    /** register argument "B" */
29    private final int b;
30
31    /**
32     * Constructs an instance.
33     */
34    public TwoRegisterDecodedInstruction(InstructionCodec format, int opcode,
35            int index, IndexType indexType, int target, long literal,
36            int a, int b) {
37        super(format, opcode, index, indexType, target, literal);
38
39        this.a = a;
40        this.b = b;
41    }
42
43    /** @inheritDoc */
44    public int getRegisterCount() {
45        return 2;
46    }
47
48    /** @inheritDoc */
49    public int getA() {
50        return a;
51    }
52
53    /** @inheritDoc */
54    public int getB() {
55        return b;
56    }
57
58    /** @inheritDoc */
59    public DecodedInstruction withIndex(int newIndex) {
60        return new TwoRegisterDecodedInstruction(
61                getFormat(), getOpcode(), newIndex, getIndexType(),
62                getTarget(), getLiteral(), a, b);
63    }
64}
65