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; 26dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhaoimport java.util.BitSet; 27dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhao 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 2999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * Instruction format {@code 21h}. See the instruction format spec 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for details. 31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpublic final class Form21h extends InsnFormat { 3399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /** {@code non-null;} unique instance of this class */ 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public static final InsnFormat THE_ONE = new Form21h(); 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Constructs an instance. This class is not publicly 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * instantiable. Use {@link #THE_ONE}. 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private Form21h() { 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // This space intentionally left blank. 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public String insnArgString(DalvInsn insn) { 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpecList regs = insn.getRegisters(); 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CstLiteralBits value = (CstLiteralBits) ((CstInsn) insn).getConstant(); 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return regs.get(0).regString() + ", " + literalBitsString(value); 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public String insnCommentString(DalvInsn insn, boolean noteIndices) { 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpecList regs = insn.getRegisters(); 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CstLiteralBits value = (CstLiteralBits) ((CstInsn) insn).getConstant(); 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project literalBitsComment(value, 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (regs.get(0).getCategory() == 1) ? 32 : 64); 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public int codeSize() { 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 2; 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public boolean isCompatible(DalvInsn insn) { 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpecList regs = insn.getRegisters(); 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!((insn instanceof CstInsn) && 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (regs.size() == 1) && 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project unsignedFitsInByte(regs.get(0).getReg()))) { 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CstInsn ci = (CstInsn) insn; 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Constant cst = ci.getConstant(); 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!(cst instanceof CstLiteralBits)) { 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CstLiteralBits cb = (CstLiteralBits) cst; 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Where the high bits are depends on the category of the target. 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (regs.get(0).getCategory() == 1) { 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int bits = cb.getIntBits(); 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return ((bits & 0xffff) == 0); 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project long bits = cb.getLongBits(); 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return ((bits & 0xffffffffffffL) == 0); 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 99f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 101dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhao public BitSet compatibleRegs(DalvInsn insn) { 102dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhao RegisterSpecList regs = insn.getRegisters(); 103dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhao BitSet bits = new BitSet(1); 104dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhao 105dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhao bits.set(0, unsignedFitsInByte(regs.get(0).getReg())); 106dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhao return bits; 107dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhao } 108dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhao 109dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhao /** {@inheritDoc} */ 110dd79e4e11fa20d6677b70ce6618a8653a1f3520djeffhao @Override 111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public void writeTo(AnnotatedOutput out, DalvInsn insn) { 112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpecList regs = insn.getRegisters(); 113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CstLiteralBits cb = (CstLiteralBits) ((CstInsn) insn).getConstant(); 114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project short bits; 115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Where the high bits are depends on the category of the target. 117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (regs.get(0).getCategory() == 1) { 118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bits = (short) (cb.getIntBits() >>> 16); 119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bits = (short) (cb.getLongBits() >>> 48); 121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project write(out, opcodeUnit(insn, regs.get(0).getReg()), bits); 124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 126