1/* 2 * Copyright (C) 2007 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.dex.code.form; 18 19import com.android.dx.dex.code.CstInsn; 20import com.android.dx.dex.code.DalvInsn; 21import com.android.dx.dex.code.InsnFormat; 22import com.android.dx.rop.code.RegisterSpecList; 23import com.android.dx.rop.cst.Constant; 24import com.android.dx.rop.cst.CstLiteral64; 25import com.android.dx.rop.cst.CstLiteralBits; 26import com.android.dx.util.AnnotatedOutput; 27 28import java.util.BitSet; 29 30/** 31 * Instruction format {@code 51l}. See the instruction format spec 32 * for details. 33 */ 34public final class Form51l extends InsnFormat { 35 /** {@code non-null;} unique instance of this class */ 36 public static final InsnFormat THE_ONE = new Form51l(); 37 38 /** 39 * Constructs an instance. This class is not publicly 40 * instantiable. Use {@link #THE_ONE}. 41 */ 42 private Form51l() { 43 // This space intentionally left blank. 44 } 45 46 /** {@inheritDoc} */ 47 @Override 48 public String insnArgString(DalvInsn insn) { 49 RegisterSpecList regs = insn.getRegisters(); 50 CstLiteralBits value = (CstLiteralBits) ((CstInsn) insn).getConstant(); 51 52 return regs.get(0).regString() + ", " + literalBitsString(value); 53 } 54 55 /** {@inheritDoc} */ 56 @Override 57 public String insnCommentString(DalvInsn insn, boolean noteIndices) { 58 CstLiteralBits value = (CstLiteralBits) ((CstInsn) insn).getConstant(); 59 return literalBitsComment(value, 64); 60 } 61 62 /** {@inheritDoc} */ 63 @Override 64 public int codeSize() { 65 return 5; 66 } 67 68 /** {@inheritDoc} */ 69 @Override 70 public boolean isCompatible(DalvInsn insn) { 71 RegisterSpecList regs = insn.getRegisters(); 72 if (!((insn instanceof CstInsn) && 73 (regs.size() == 1) && 74 unsignedFitsInByte(regs.get(0).getReg()))) { 75 return false; 76 } 77 78 CstInsn ci = (CstInsn) insn; 79 Constant cst = ci.getConstant(); 80 81 return (cst instanceof CstLiteral64); 82 } 83 84 /** {@inheritDoc} */ 85 @Override 86 public BitSet compatibleRegs(DalvInsn insn) { 87 RegisterSpecList regs = insn.getRegisters(); 88 BitSet bits = new BitSet(1); 89 90 bits.set(0, unsignedFitsInByte(regs.get(0).getReg())); 91 return bits; 92 } 93 94 /** {@inheritDoc} */ 95 @Override 96 public void writeTo(AnnotatedOutput out, DalvInsn insn) { 97 RegisterSpecList regs = insn.getRegisters(); 98 long value = 99 ((CstLiteral64) ((CstInsn) insn).getConstant()).getLongBits(); 100 101 write(out, opcodeUnit(insn, regs.get(0).getReg()), value); 102 } 103} 104