Home | History | Annotate | Download | only in instructions 
      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 
     17 package com.android.dx.io.instructions;
     18 
     19 import com.android.dx.io.IndexType;
     20 
     21 /**
     22  * A decoded Dalvik instruction which has three register arguments.
     23  */
     24 public final class ThreeRegisterDecodedInstruction extends DecodedInstruction {
     25     /** register argument "A" */
     26     private final int a;
     27 
     28     /** register argument "B" */
     29     private final int b;
     30 
     31     /** register argument "C" */
     32     private final int c;
     33 
     34     /**
     35      * Constructs an instance.
     36      */
     37     public ThreeRegisterDecodedInstruction(InstructionCodec format, int opcode,
     38             int index, IndexType indexType, int target, long literal,
     39             int a, int b, int c) {
     40         super(format, opcode, index, indexType, target, literal);
     41 
     42         this.a = a;
     43         this.b = b;
     44         this.c = c;
     45     }
     46 
     47     /** {@inheritDoc} */
     48     @Override
     49     public int getRegisterCount() {
     50         return 3;
     51     }
     52 
     53     /** {@inheritDoc} */
     54     @Override
     55     public int getA() {
     56         return a;
     57     }
     58 
     59     /** {@inheritDoc} */
     60     @Override
     61     public int getB() {
     62         return b;
     63     }
     64 
     65     /** {@inheritDoc} */
     66     @Override
     67     public int getC() {
     68         return c;
     69     }
     70 
     71     /** {@inheritDoc} */
     72     @Override
     73     public DecodedInstruction withIndex(int newIndex) {
     74         return new ThreeRegisterDecodedInstruction(
     75                 getFormat(), getOpcode(), newIndex, getIndexType(),
     76                 getTarget(), getLiteral(), a, b, c);
     77     }
     78 }
     79