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.CstMethodRef; 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.cst.CstType; 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.util.AnnotatedOutput; 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 2999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * Instruction format {@code 3rc}. See the instruction format spec 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * for details. 31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpublic final class Form3rc 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 Form3rc(); 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 Form3rc() { 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) { 479f7f6a92ebec8dd12e310901301d857e2ee323daDan Bornstein return regRangeString(insn.getRegisters()) + ", " + 489f7f6a92ebec8dd12e310901301d857e2ee323daDan Bornstein cstString(insn); 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public String insnCommentString(DalvInsn insn, boolean noteIndices) { 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (noteIndices) { 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return cstComment(insn); 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } else { 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return ""; 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public int codeSize() { 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 3; 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public boolean isCompatible(DalvInsn insn) { 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!(insn instanceof CstInsn)) { 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project CstInsn ci = (CstInsn) insn; 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int cpi = ci.getIndex(); 769f7f6a92ebec8dd12e310901301d857e2ee323daDan Bornstein Constant cst = ci.getConstant(); 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (! unsignedFitsInShort(cpi)) { 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!((cst instanceof CstMethodRef) || 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project (cst instanceof CstType))) { 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpecList regs = ci.getRegisters(); 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int sz = regs.size(); 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 909f7f6a92ebec8dd12e310901301d857e2ee323daDan Bornstein return (regs.size() == 0) || 919f7f6a92ebec8dd12e310901301d857e2ee323daDan Bornstein (isRegListSequential(regs) && 929f7f6a92ebec8dd12e310901301d857e2ee323daDan Bornstein unsignedFitsInShort(regs.get(0).getReg()) && 939f7f6a92ebec8dd12e310901301d857e2ee323daDan Bornstein unsignedFitsInByte(regs.getWordCount())); 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public void writeTo(AnnotatedOutput out, DalvInsn insn) { 99f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpecList regs = insn.getRegisters(); 100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int cpi = ((CstInsn) insn).getIndex(); 1019f7f6a92ebec8dd12e310901301d857e2ee323daDan Bornstein int firstReg = (regs.size() == 0) ? 0 : regs.get(0).getReg(); 1029f7f6a92ebec8dd12e310901301d857e2ee323daDan Bornstein int count = regs.getWordCount(); 103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 1049f7f6a92ebec8dd12e310901301d857e2ee323daDan Bornstein write(out, opcodeUnit(insn, count), (short) cpi, (short) firstReg); 105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 107