1f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/*
2f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project
3f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *
4f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License");
5f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * you may not use this file except in compliance with the License.
6f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * You may obtain a copy of the License at
7f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *
8f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *      http://www.apache.org/licenses/LICENSE-2.0
9f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project *
10f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unless required by applicable law or agreed to in writing, software
11f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS,
12f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See the License for the specific language governing permissions and
14f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * limitations under the License.
15f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */
16f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
17f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpackage com.android.dx.dex.code.form;
18f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
19f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.dex.code.CstInsn;
20f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.dex.code.DalvInsn;
21f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.dex.code.InsnFormat;
22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.code.RegisterSpecList;
23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.cst.Constant;
24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.cst.CstLiteralBits;
25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.util.AnnotatedOutput;
26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/**
2899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * Instruction format {@code 31i}. See the instruction format spec
29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for details.
30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */
31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpublic final class Form31i extends InsnFormat {
3299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project    /** {@code non-null;} unique instance of this class */
33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    public static final InsnFormat THE_ONE = new Form31i();
34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    /**
36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project     * Constructs an instance. This class is not publicly
37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project     * instantiable. Use {@link #THE_ONE}.
38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project     */
39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    private Form31i() {
40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        // This space intentionally left blank.
41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    }
42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    /** {@inheritDoc} */
44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    @Override
45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    public String insnArgString(DalvInsn insn) {
46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        RegisterSpecList regs = insn.getRegisters();
47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        CstLiteralBits value = (CstLiteralBits) ((CstInsn) insn).getConstant();
48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        return regs.get(0).regString() + ", " + literalBitsString(value);
50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    }
51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    /** {@inheritDoc} */
53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    @Override
54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    public String insnCommentString(DalvInsn insn, boolean noteIndices) {
55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        CstLiteralBits value = (CstLiteralBits) ((CstInsn) insn).getConstant();
56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        return literalBitsComment(value, 32);
57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    }
58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    /** {@inheritDoc} */
60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    @Override
61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    public int codeSize() {
62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        return 3;
63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    }
64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    /** {@inheritDoc} */
66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    @Override
67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    public boolean isCompatible(DalvInsn insn) {
68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        RegisterSpecList regs = insn.getRegisters();
69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        if (!((insn instanceof CstInsn) &&
70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project              (regs.size() == 1) &&
71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project              unsignedFitsInByte(regs.get(0).getReg()))) {
72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project            return false;
73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        }
74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        CstInsn ci = (CstInsn) insn;
76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        Constant cst = ci.getConstant();
77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        if (!(cst instanceof CstLiteralBits)) {
79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project            return false;
80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        }
81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        return ((CstLiteralBits) cst).fitsInInt();
83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    }
84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    /** {@inheritDoc} */
86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    @Override
87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    public InsnFormat nextUp() {
88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        return Form51l.THE_ONE;
89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    }
90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    /** {@inheritDoc} */
92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    @Override
93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    public void writeTo(AnnotatedOutput out, DalvInsn insn) {
94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        RegisterSpecList regs = insn.getRegisters();
95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        int value =
96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project            ((CstLiteralBits) ((CstInsn) insn).getConstant()).getIntBits();
97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project
98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project        write(out,
99f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project              opcodeUnit(insn, regs.get(0).getReg()),
100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project              (short) value,
101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project              (short) (value >> 16));
102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project    }
103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project}
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