/*
* [The "BSD licence"]
* Copyright (c) 2010 Ben Gruver (JesusFreke)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jf.dexlib.Code.Format;
import org.jf.dexlib.Code.FiveRegisterInstruction;
import org.jf.dexlib.Code.Instruction;
import org.jf.dexlib.Code.OdexedInvokeVirtual;
import org.jf.dexlib.Code.Opcode;
import org.jf.dexlib.DexFile;
import org.jf.dexlib.Util.AnnotatedOutput;
import org.jf.dexlib.Util.NumberUtils;
public class Instruction35ms extends Instruction implements FiveRegisterInstruction, OdexedInvokeVirtual {
public static final Instruction.InstructionFactory Factory = new Factory();
private byte regCount;
private byte regA;
private byte regD;
private byte regE;
private byte regF;
private byte regG;
private short vtableIndex;
public Instruction35ms(Opcode opcode, int regCount, byte regD, byte regE, byte regF, byte regG,
byte regA, int vtableIndex) {
super(opcode);
if (regCount > 5) {
throw new RuntimeException("regCount cannot be greater than 5");
}
if (regD >= 1 << 4 ||
regE >= 1 << 4 ||
regF >= 1 << 4 ||
regG >= 1 << 4 ||
regA >= 1 << 4) {
throw new RuntimeException("All register args must fit in 4 bits");
}
if (vtableIndex >= 1 << 16) {
throw new RuntimeException("The method index must be less than 65536");
}
this.regCount = (byte)regCount;
this.regA = regA;
this.regD = regD;
this.regE = regE;
this.regF = regF;
this.regG = regG;
this.vtableIndex = (short)vtableIndex;
}
private Instruction35ms(Opcode opcode, byte[] buffer, int bufferIndex) {
super(opcode);
this.regCount = NumberUtils.decodeHighUnsignedNibble(buffer[bufferIndex + 1]);
this.regA = NumberUtils.decodeLowUnsignedNibble(buffer[bufferIndex + 1]);
this.regD = NumberUtils.decodeLowUnsignedNibble(buffer[bufferIndex + 4]);
this.regE = NumberUtils.decodeHighUnsignedNibble(buffer[bufferIndex + 4]);
this.regF = NumberUtils.decodeLowUnsignedNibble(buffer[bufferIndex + 5]);
this.regG = NumberUtils.decodeHighUnsignedNibble(buffer[bufferIndex + 5]);
this.vtableIndex = (short)NumberUtils.decodeUnsignedShort(buffer, bufferIndex + 2);
}
protected void writeInstruction(AnnotatedOutput out, int currentCodeAddress) {
out.writeByte(opcode.value);
out.writeByte((regCount << 4) | regA);
out.writeShort(vtableIndex);
out.writeByte((regE << 4) | regD);
out.writeByte((regG << 4) | regF);
}
public Format getFormat() {
return Format.Format35ms;
}
public int getRegCount() {
return regCount;
}
public byte getRegisterA() {
return regA;
}
public byte getRegisterD() {
return regD;
}
public byte getRegisterE() {
return regE;
}
public byte getRegisterF() {
return regF;
}
public byte getRegisterG() {
return regG;
}
public int getVtableIndex() {
return vtableIndex & 0xFFFF;
}
private static class Factory implements Instruction.InstructionFactory {
public Instruction makeInstruction(DexFile dexFile, Opcode opcode, byte[] buffer, int bufferIndex) {
return new Instruction35ms(opcode, buffer, bufferIndex);
}
}
}