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 @Override 45 public int getRegisterCount() { 46 return 2; 47 } 48 49 /** {@inheritDoc} */ 50 @Override 51 public int getA() { 52 return a; 53 } 54 55 /** {@inheritDoc} */ 56 @Override 57 public int getB() { 58 return b; 59 } 60 61 /** {@inheritDoc} */ 62 @Override 63 public DecodedInstruction withIndex(int newIndex) { 64 return new TwoRegisterDecodedInstruction( 65 getFormat(), getOpcode(), newIndex, getIndexType(), 66 getTarget(), getLiteral(), a, b); 67 } 68} 69