15867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com/* 25867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * [The "BSD licence"] 300fc68adf2e39aeb9fed35293f2576bbe729ec4bJesusFreke@JesusFreke.com * Copyright (c) 2010 Ben Gruver (JesusFreke) 45867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * All rights reserved. 55867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * 65867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * Redistribution and use in source and binary forms, with or without 75867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * modification, are permitted provided that the following conditions 85867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * are met: 95867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * 1. Redistributions of source code must retain the above copyright 105867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * notice, this list of conditions and the following disclaimer. 115867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * 2. Redistributions in binary form must reproduce the above copyright 125867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * notice, this list of conditions and the following disclaimer in the 135867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * documentation and/or other materials provided with the distribution. 145867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * 3. The name of the author may not be used to endorse or promote products 155867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * derived from this software without specific prior written permission. 165867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * 175867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 185867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 195867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 205867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 215867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 225867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 235867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 245867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 255867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 265867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 275867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com */ 285867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 295867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.compackage org.jf.dexlib.Code.Format; 305867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 31b3abca4c90929e31e6a8c52bc0178c44e3e53c6bJesusFreke@JesusFreke.comimport org.jf.dexlib.Code.Instruction; 32b3abca4c90929e31e6a8c52bc0178c44e3e53c6bJesusFreke@JesusFreke.comimport org.jf.dexlib.Code.OffsetInstruction; 33b3abca4c90929e31e6a8c52bc0178c44e3e53c6bJesusFreke@JesusFreke.comimport org.jf.dexlib.Code.Opcode; 34b3abca4c90929e31e6a8c52bc0178c44e3e53c6bJesusFreke@JesusFreke.comimport org.jf.dexlib.Code.SingleRegisterInstruction; 355867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.comimport org.jf.dexlib.DexFile; 36fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.comimport org.jf.dexlib.Util.AnnotatedOutput; 37b3abca4c90929e31e6a8c52bc0178c44e3e53c6bJesusFreke@JesusFreke.comimport org.jf.dexlib.Util.NumberUtils; 385867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 3960bb8c675cf4431b78373598b2d7e8527766b58fBen Gruverpublic class Instruction21t extends OffsetInstruction implements SingleRegisterInstruction { 405867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com public static final Instruction.InstructionFactory Factory = new Factory(); 41fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com private byte regA; 4216a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com private short targetAddressOffset; 43fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com 44fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com public Instruction21t(Opcode opcode, short regA, short offB) { 45fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com super(opcode); 465867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 475867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com if (regA >= 1 << 8) { 485867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com throw new RuntimeException("The register number must be less than v256"); 495867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 505867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 515867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com if (offB == 0) { 5216a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com throw new RuntimeException("The address offset cannot be 0."); 535867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 545867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 55fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com this.regA = (byte)regA; 5616a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com this.targetAddressOffset = offB; 575867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 585867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 595867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com private Instruction21t(Opcode opcode, byte[] buffer, int bufferIndex) { 60fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com super(opcode); 615867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 62fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com assert buffer[bufferIndex] == opcode.value; 63fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com 64fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com regA = buffer[bufferIndex + 1]; 6516a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com targetAddressOffset = NumberUtils.decodeShort(buffer, bufferIndex + 2); 6616a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com assert targetAddressOffset != 0; 67fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com } 68fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com 6916a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com protected void writeInstruction(AnnotatedOutput out, int currentCodeAddress) { 70fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com out.writeByte(opcode.value); 71fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com out.writeByte(regA); 7216a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com out.writeShort(targetAddressOffset); 73fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com } 74fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com 7516a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com public void updateTargetAddressOffset(int targetAddressOffset) { 7616a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com if (targetAddressOffset < Short.MIN_VALUE || targetAddressOffset > Short.MAX_VALUE) { 7716a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com throw new RuntimeException("The address offset " + targetAddressOffset + 7816a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com " is out of range. It must be in [-32768, 32767]"); 797570fe03829e1896bdc4c6c75a24de93990245daJesusFreke@JesusFreke.com } 8016a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com if (targetAddressOffset == 0) { 8116a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com throw new RuntimeException("The address offset cannot be 0"); 827570fe03829e1896bdc4c6c75a24de93990245daJesusFreke@JesusFreke.com } 8316a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com this.targetAddressOffset = (short) targetAddressOffset; 845867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 855867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 865867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com public Format getFormat() { 875867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com return Format.Format21t; 885867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 895867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 904238ac2dd12461e285472dedfc0e53669b5aec35JesusFreke@JesusFreke.com public int getRegisterA() { 91fda2e631ac0b1ca092973b7fff4b2f38d2c23437JesusFreke@JesusFreke.com return regA & 0xFF; 925867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 935867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 9416a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com public int getTargetAddressOffset() { 9516a911620ccf7b530b873fb71cf13e8dcb88ad28JesusFreke@JesusFreke.com return targetAddressOffset; 965867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 975867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 985867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com private static class Factory implements Instruction.InstructionFactory { 995867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com public Instruction makeInstruction(DexFile dexFile, Opcode opcode, byte[] buffer, int bufferIndex) { 1005867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com return new Instruction21t(opcode, buffer, bufferIndex); 1015867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 1025867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 1035867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com} 104