13c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein/* 23c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Copyright (C) 2011 The Android Open Source Project 33c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * 43c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Licensed under the Apache License, Version 2.0 (the "License"); 53c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * you may not use this file except in compliance with the License. 63c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * You may obtain a copy of the License at 73c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * 83c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * http://www.apache.org/licenses/LICENSE-2.0 93c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * 103c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Unless required by applicable law or agreed to in writing, software 113c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * distributed under the License is distributed on an "AS IS" BASIS, 123c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 133c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * See the License for the specific language governing permissions and 143c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * limitations under the License. 153c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 163c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 17537939ca06a47668f719ee06159303bcd3175c69Dan Bornsteinpackage com.android.dx.io.instructions; 183c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 19537939ca06a47668f719ee06159303bcd3175c69Dan Bornsteinimport com.android.dx.io.IndexType; 20537939ca06a47668f719ee06159303bcd3175c69Dan Bornsteinimport com.android.dx.io.OpcodeInfo; 21537939ca06a47668f719ee06159303bcd3175c69Dan Bornsteinimport com.android.dx.io.Opcodes; 227baa3b69f87348aa2f4f16375a66be59965e8dd4Dan Bornsteinimport com.android.dx.util.DexException; 23740fce415cf1a982e9b035604f432eed378fbd05Dan Bornsteinimport com.android.dx.util.Hex; 24740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein 2519cefdcde26ea31d06cef031032b2ef78013d976Dan Bornsteinimport java.io.EOFException; 2619cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein 273c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein/** 283c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Representation of an instruction format, which knows how to decode into 293c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * and encode from instances of {@link DecodedInstruction}. 303c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 313c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornsteinpublic enum InstructionCodec { 323c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_00X() { 333c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 3419cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 35740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new ZeroRegisterDecodedInstruction( 36740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcodeUnit, 0, null, 37d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L); 383c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 393c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 403c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 413c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write(insn.getOpcodeUnit()); 423c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 433c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 443c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 453c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_10X() { 463c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 4719cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 483c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 493c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int literal = byte1(opcodeUnit); // should be zero 50740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new ZeroRegisterDecodedInstruction( 51740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 52d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, literal); 533c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 543c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 553c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 563c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write(insn.getOpcodeUnit()); 573c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 583c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 593c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 603c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_12X() { 613c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 6219cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 633c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 643c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = nibble2(opcodeUnit); 653c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int b = nibble3(opcodeUnit); 66740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new TwoRegisterDecodedInstruction( 67740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 68d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 69740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b); 703c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 713c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 723c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 733c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 743c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcodeUnit(), 753c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein makeByte(insn.getA(), insn.getB()))); 763c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 773c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 783c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 793c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_11N() { 803c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 8119cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 823c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 833c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = nibble2(opcodeUnit); 843c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int literal = (nibble3(opcodeUnit) << 28) >> 28; // sign-extend 85740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new OneRegisterDecodedInstruction( 86740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 87d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, literal, 88740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a); 893c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 903c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 913c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 923c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 933c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcodeUnit(), 943c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein makeByte(insn.getA(), insn.getLiteralNibble()))); 953c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 963c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 973c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 983c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_11X() { 993c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 10019cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 1013c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 1023c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 103740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new OneRegisterDecodedInstruction( 104740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 105d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 106740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a); 1073c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 1083c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 1093c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 1103c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write(codeUnit(insn.getOpcode(), insn.getA())); 1113c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 1123c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 1133c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 1143c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_10T() { 1153c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 11619cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 117d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int baseAddress = in.cursor() - 1; 1183c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 11932dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein int target = (byte) byte1(opcodeUnit); // sign-extend 120740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new ZeroRegisterDecodedInstruction( 121740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 122d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein baseAddress + target, 0L); 1233c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 1243c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 1253c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 126d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int relativeTarget = insn.getTargetByte(out.cursor()); 127d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.write(codeUnit(insn.getOpcode(), relativeTarget)); 1283c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 1293c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 1303c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 1313c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_20T() { 1323c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 13319cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 134d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int baseAddress = in.cursor() - 1; 1353c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 1363c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int literal = byte1(opcodeUnit); // should be zero 1373c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int target = (short) in.read(); // sign-extend 138740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new ZeroRegisterDecodedInstruction( 139740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 140d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein baseAddress + target, literal); 1413c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 1423c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 1433c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 144d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein short relativeTarget = insn.getTargetUnit(out.cursor()); 145d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.write(insn.getOpcodeUnit(), relativeTarget); 1463c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 1473c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 1483c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 1493c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_20BC() { 1503c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 15119cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 1523c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein // Note: We use the literal field to hold the decoded AA value. 1533c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 1543c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int literal = byte1(opcodeUnit); 1553c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int index = in.read(); 156740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new ZeroRegisterDecodedInstruction( 157740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, index, IndexType.VARIES, 158d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, literal); 1593c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 1603c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 1613c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 1623c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 1633c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), insn.getLiteralByte()), 1643c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein insn.getIndexUnit()); 1653c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 1663c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 1673c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 1683c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_22X() { 1693c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 17019cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 1713c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 1723c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 1733c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int b = in.read(); 174740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new TwoRegisterDecodedInstruction( 175740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 176d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 177740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b); 1783c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 1793c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 1803c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 1813c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 1823c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), insn.getA()), 1833c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein insn.getBUnit()); 1843c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 1853c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 1863c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 1873c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_21T() { 1883c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 18919cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 190d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int baseAddress = in.cursor() - 1; 1913c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 1923c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 1933c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int target = (short) in.read(); // sign-extend 194740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new OneRegisterDecodedInstruction( 195740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 196d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein baseAddress + target, 0L, 197740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a); 1983c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 1993c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2003c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 201d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein short relativeTarget = insn.getTargetUnit(out.cursor()); 202d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.write(codeUnit(insn.getOpcode(), insn.getA()), relativeTarget); 2033c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 2043c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 2053c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2063c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_21S() { 2073c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 20819cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 2093c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 2103c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 2113c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int literal = (short) in.read(); // sign-extend 212740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new OneRegisterDecodedInstruction( 213740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 214d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, literal, 215740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a); 2163c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 2173c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2183c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 2193c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 2203c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), insn.getA()), 2213c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein insn.getLiteralUnit()); 2223c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 2233c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 2243c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2253c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_21H() { 2263c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 22719cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 2283c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 2293c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 2300ebdfc22385095c75fbced79edc1d1e75b504213Jesse Wilson long literal = (short) in.read(); // sign-extend 2313c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2323c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein /* 2333c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Format 21h decodes differently depending on the opcode, 2343c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * because the "signed hat" might represent either a 32- 2353c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * or 64- bit value. 2363c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 2377ba91291bb6ce64691398a8751656207e8e3e98dDan Bornstein literal <<= (opcode == Opcodes.CONST_HIGH16) ? 16 : 48; 2383c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 239740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new OneRegisterDecodedInstruction( 240740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 241d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, literal, 242740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a); 2433c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 2443c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2453c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 2463c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein // See above. 2473c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = insn.getOpcode(); 2487ba91291bb6ce64691398a8751656207e8e3e98dDan Bornstein int shift = (opcode == Opcodes.CONST_HIGH16) ? 16 : 48; 2493c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein short literal = (short) (insn.getLiteral() >> shift); 2503c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2513c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write(codeUnit(opcode, insn.getA()), literal); 2523c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 2533c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 2543c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2553c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_21C() { 2563c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 25719cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 2583c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 2593c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 2603c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int index = in.read(); 2613c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein IndexType indexType = OpcodeInfo.getIndexType(opcode); 262740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new OneRegisterDecodedInstruction( 263740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, index, indexType, 264d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 265740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a); 2663c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 2673c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2683c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 2693c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 2703c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), insn.getA()), 2711bbb3378b108329c7ab75713fe9507b7ffc7f885Jesse Wilson insn.getIndexUnit()); 2723c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 2733c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 2743c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2753c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_23X() { 2763c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 27719cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 2783c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 2793c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 2803c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int bc = in.read(); 2813c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int b = byte0(bc); 2823c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int c = byte1(bc); 283740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new ThreeRegisterDecodedInstruction( 284740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 285d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 286740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b, c); 2873c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 2883c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2893c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 2903c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 2913c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), insn.getA()), 2923c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getB(), insn.getC())); 2933c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 2943c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 2953c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 2963c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_22B() { 2973c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 29819cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 2993c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 3003c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 3013c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int bc = in.read(); 3023c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int b = byte0(bc); 3033c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int literal = (byte) byte1(bc); // sign-extend 304740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new TwoRegisterDecodedInstruction( 305740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 306d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, literal, 307740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b); 3083c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 3093c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 3103c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 3113c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 3123c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), insn.getA()), 3133c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getB(), 3143c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein insn.getLiteralByte())); 3153c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 3163c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 3173c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 3183c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_22T() { 3193c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 32019cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 321d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int baseAddress = in.cursor() - 1; 3223c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 3233c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = nibble2(opcodeUnit); 3243c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int b = nibble3(opcodeUnit); 3253c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int target = (short) in.read(); // sign-extend 326740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new TwoRegisterDecodedInstruction( 327740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 328d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein baseAddress + target, 0L, 329740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b); 3303c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 3313c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 3323c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 333d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein short relativeTarget = insn.getTargetUnit(out.cursor()); 3343c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 3353c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), 3363c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein makeByte(insn.getA(), insn.getB())), 337d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein relativeTarget); 3383c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 3393c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 3403c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 3413c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_22S() { 3423c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 34319cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 3443c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 3453c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = nibble2(opcodeUnit); 3463c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int b = nibble3(opcodeUnit); 3473c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int literal = (short) in.read(); // sign-extend 348740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new TwoRegisterDecodedInstruction( 349740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 350d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, literal, 351740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b); 3523c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 3533c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 3543c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 3553c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 3563c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), 3573c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein makeByte(insn.getA(), insn.getB())), 3583c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein insn.getLiteralUnit()); 3593c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 3603c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 3613c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 3623c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_22C() { 3633c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 36419cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 3653c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 3663c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = nibble2(opcodeUnit); 3673c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int b = nibble3(opcodeUnit); 3683c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int index = in.read(); 3693c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein IndexType indexType = OpcodeInfo.getIndexType(opcode); 370740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new TwoRegisterDecodedInstruction( 371740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, index, indexType, 372d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 373740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b); 3743c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 3753c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 3763c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 3773c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 3783c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), 3793c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein makeByte(insn.getA(), insn.getB())), 3803c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein insn.getIndexUnit()); 3813c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 3823c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 3833c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 3843c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_22CS() { 3853c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 38619cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 3873c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 3883c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = nibble2(opcodeUnit); 3893c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int b = nibble3(opcodeUnit); 3903c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int index = in.read(); 391740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new TwoRegisterDecodedInstruction( 392740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, index, IndexType.FIELD_OFFSET, 393d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 394740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b); 3953c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 3963c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 3973c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 3983c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 3993c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), 4003c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein makeByte(insn.getA(), insn.getB())), 4013c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein insn.getIndexUnit()); 4023c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 4033c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 4043c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 4053c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_30T() { 4063c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 40719cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 408d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int baseAddress = in.cursor() - 1; 4093c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 4103c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int literal = byte1(opcodeUnit); // should be zero 4113c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int target = in.readInt(); 412740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new ZeroRegisterDecodedInstruction( 413740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 414d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein baseAddress + target, literal); 4153c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 4163c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 4173c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 418d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int relativeTarget = insn.getTarget(out.cursor()); 419d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.write(insn.getOpcodeUnit(), 420d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein unit0(relativeTarget), unit1(relativeTarget)); 4213c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 4223c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 4233c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 4243c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_32X() { 4253c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 42619cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 4273c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 4283c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int literal = byte1(opcodeUnit); // should be zero 4293c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = in.read(); 4303c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int b = in.read(); 431740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new TwoRegisterDecodedInstruction( 432740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 433d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, literal, 434740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b); 4353c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 4363c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 4373c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 4383c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write(insn.getOpcodeUnit(), insn.getAUnit(), insn.getBUnit()); 4393c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 4403c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 4413c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 4423c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_31I() { 4433c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 44419cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 4453c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 4463c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 4473c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int literal = in.readInt(); 448740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new OneRegisterDecodedInstruction( 449740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 450d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, literal, 451740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a); 4523c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 4533c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 4543c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 4553c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int literal = insn.getLiteralInt(); 4563c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 4573c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), insn.getA()), 4583c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein unit0(literal), 4593c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein unit1(literal)); 4603c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 4613c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 4623c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 4633c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_31T() { 4643c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 46519cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 466d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int baseAddress = in.cursor() - 1; 4673c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 4683c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 469d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int target = baseAddress + in.readInt(); 470d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 471d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein /* 472d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein * Switch instructions need to "forward" their addresses to their 473d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein * payload target instructions. 474d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein */ 475d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein switch (opcode) { 476d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein case Opcodes.PACKED_SWITCH: 477d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein case Opcodes.SPARSE_SWITCH: { 478d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein in.setBaseAddress(target, baseAddress); 479d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein break; 480d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 481d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 482d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 483740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new OneRegisterDecodedInstruction( 484740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 485d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein target, 0L, 486740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a); 4873c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 4883c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 4893c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 490d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int relativeTarget = insn.getTarget(out.cursor()); 4913c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 4923c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), insn.getA()), 493d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein unit0(relativeTarget), unit1(relativeTarget)); 4943c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 4953c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 4963c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 4973c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_31C() { 4983c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 49919cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 5003c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 5013c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 5023c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int index = in.readInt(); 5033c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein IndexType indexType = OpcodeInfo.getIndexType(opcode); 504740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new OneRegisterDecodedInstruction( 505740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, index, indexType, 506d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 507740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a); 5083c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5093c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5103c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 5113c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int index = insn.getIndex(); 5123c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 5133c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), insn.getA()), 5143c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein unit0(index), 5153c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein unit1(index)); 5163c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5173c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 5183c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5193c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_35C() { 5203c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 52119cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 5223c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return decodeRegisterList(this, opcodeUnit, in); 5233c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5243c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5253c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 5263c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein encodeRegisterList(insn, out); 5273c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5283c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 5293c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5303c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_35MS() { 5313c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 53219cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 5333c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return decodeRegisterList(this, opcodeUnit, in); 5343c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5353c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5363c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 5373c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein encodeRegisterList(insn, out); 5383c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5393c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 5403c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5413c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_35MI() { 5423c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 54319cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 5443c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return decodeRegisterList(this, opcodeUnit, in); 5453c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5463c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5473c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 5483c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein encodeRegisterList(insn, out); 5493c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5503c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 5513c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5523c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_3RC() { 5533c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 55419cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 5553c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return decodeRegisterRange(this, opcodeUnit, in); 5563c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5573c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5583c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 5593c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein encodeRegisterRange(insn, out); 5603c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5613c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 5623c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5633c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_3RMS() { 5643c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 56519cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 5663c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return decodeRegisterRange(this, opcodeUnit, in); 5673c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5683c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5693c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 5703c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein encodeRegisterRange(insn, out); 5713c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5723c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 5733c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5743c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_3RMI() { 5753c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 57619cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 5773c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return decodeRegisterRange(this, opcodeUnit, in); 5783c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5793c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5803c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 5813c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein encodeRegisterRange(insn, out); 5823c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5833c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 5843c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5853c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein FORMAT_51L() { 5863c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 58719cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein CodeInput in) throws EOFException { 5883c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 5893c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = byte1(opcodeUnit); 5903c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein long literal = in.readLong(); 591740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new OneRegisterDecodedInstruction( 592740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein this, opcode, 0, null, 593d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, literal, 594740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a); 5953c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 5963c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 5973c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 5981bbb3378b108329c7ab75713fe9507b7ffc7f885Jesse Wilson long literal = insn.getLiteral(); 5993c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write( 6003c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getOpcode(), insn.getA()), 6013c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein unit0(literal), 6023c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein unit1(literal), 6033c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein unit2(literal), 6043c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein unit3(literal)); 6053c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 6063c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }, 6073c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 60832dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein FORMAT_PACKED_SWITCH_PAYLOAD() { 60932dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 61032dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein CodeInput in) throws EOFException { 6110ebdfc22385095c75fbced79edc1d1e75b504213Jesse Wilson int baseAddress = in.baseAddressForCursor() - 1; // already read opcode 61232dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein int size = in.read(); 613d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int firstKey = in.readInt(); 614d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int[] targets = new int[size]; 61532dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 616d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein for (int i = 0; i < size; i++) { 617d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein targets[i] = baseAddress + in.readInt(); 61832dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein } 61932dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 620d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein return new PackedSwitchPayloadDecodedInstruction( 621d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein this, opcodeUnit, firstKey, targets); 62232dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein } 62332dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 62432dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 625d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein PackedSwitchPayloadDecodedInstruction payload = 626d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein (PackedSwitchPayloadDecodedInstruction) insn; 627d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int[] targets = payload.getTargets(); 628d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int baseAddress = out.baseAddressForCursor(); 629d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 630d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.write(payload.getOpcodeUnit()); 631d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.write(asUnsignedUnit(targets.length)); 632d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.writeInt(payload.getFirstKey()); 633d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 634d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein for (int target : targets) { 635d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.writeInt(target - baseAddress); 636d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 63732dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein } 63832dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein }, 63932dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 64032dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein FORMAT_SPARSE_SWITCH_PAYLOAD() { 64132dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 64232dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein CodeInput in) throws EOFException { 6430ebdfc22385095c75fbced79edc1d1e75b504213Jesse Wilson int baseAddress = in.baseAddressForCursor() - 1; // already read opcode 64432dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein int size = in.read(); 645d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int[] keys = new int[size]; 646d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int[] targets = new int[size]; 64732dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 648d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein for (int i = 0; i < size; i++) { 649d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein keys[i] = in.readInt(); 650d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 65132dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 652d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein for (int i = 0; i < size; i++) { 653d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein targets[i] = baseAddress + in.readInt(); 65432dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein } 65532dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 656d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein return new SparseSwitchPayloadDecodedInstruction( 657d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein this, opcodeUnit, keys, targets); 65832dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein } 65932dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 66032dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 661d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein SparseSwitchPayloadDecodedInstruction payload = 662d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein (SparseSwitchPayloadDecodedInstruction) insn; 663d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int[] keys = payload.getKeys(); 664d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int[] targets = payload.getTargets(); 665d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int baseAddress = out.baseAddressForCursor(); 666d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 667d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.write(payload.getOpcodeUnit()); 668d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.write(asUnsignedUnit(targets.length)); 669d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 670d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein for (int key : keys) { 671d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.writeInt(key); 672d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 673d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 674d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein for (int target : targets) { 675d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.writeInt(target - baseAddress); 676d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 67732dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein } 67832dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein }, 67932dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 68032dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein FORMAT_FILL_ARRAY_DATA_PAYLOAD() { 68132dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein @Override public DecodedInstruction decode(int opcodeUnit, 68232dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein CodeInput in) throws EOFException { 68332dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein int elementWidth = in.read(); 68432dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein int size = in.readInt(); 68532dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 686d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein switch (elementWidth) { 687d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein case 1: { 688d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein byte[] array = new byte[size]; 689d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein boolean even = true; 690d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein for (int i = 0, value = 0; i < size; i++, even = !even) { 691d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein if (even) { 692d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein value = in.read(); 693d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 694d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein array[i] = (byte) (value & 0xff); 695d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein value >>= 8; 696d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 697d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein return new FillArrayDataPayloadDecodedInstruction( 698d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein this, opcodeUnit, array); 699d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 700d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein case 2: { 701d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein short[] array = new short[size]; 702d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein for (int i = 0; i < size; i++) { 703d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein array[i] = (short) in.read(); 704d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 705d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein return new FillArrayDataPayloadDecodedInstruction( 706d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein this, opcodeUnit, array); 707d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 708d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein case 4: { 709d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein int[] array = new int[size]; 710d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein for (int i = 0; i < size; i++) { 711d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein array[i] = in.readInt(); 712d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 713d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein return new FillArrayDataPayloadDecodedInstruction( 714d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein this, opcodeUnit, array); 715d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 716d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein case 8: { 717d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein long[] array = new long[size]; 718d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein for (int i = 0; i < size; i++) { 719d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein array[i] = in.readLong(); 720d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 721d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein return new FillArrayDataPayloadDecodedInstruction( 722d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein this, opcodeUnit, array); 723d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 72432dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein } 72532dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 726d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein throw new DexException("bogus element_width: " 727d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein + Hex.u2(elementWidth)); 72832dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein } 72932dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein 73032dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein @Override public void encode(DecodedInstruction insn, CodeOutput out) { 731d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein FillArrayDataPayloadDecodedInstruction payload = 732d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein (FillArrayDataPayloadDecodedInstruction) insn; 733d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein short elementWidth = payload.getElementWidthUnit(); 734d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein Object data = payload.getData(); 735d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 736d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.write(payload.getOpcodeUnit()); 737d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.write(elementWidth); 738d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein out.writeInt(payload.getSize()); 739d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 740d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein switch (elementWidth) { 741d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein case 1: out.write((byte[]) data); break; 742d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein case 2: out.write((short[]) data); break; 743d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein case 4: out.write((int[]) data); break; 744d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein case 8: out.write((long[]) data); break; 745d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein default: { 746d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein throw new DexException("bogus element_width: " 747d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein + Hex.u2(elementWidth)); 748d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 749d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 75032dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein } 7513c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein }; 7523c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 7533c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein /** 7543c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Decodes an instruction specified by the given opcode unit, reading 7553c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * any required additional code units from the given input source. 7563c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 75719cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein public abstract DecodedInstruction decode(int opcodeUnit, CodeInput in) 75819cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein throws EOFException; 7593c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 7603c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein /** 7613c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Encodes the given instruction. 7623c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 7633c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein public abstract void encode(DecodedInstruction insn, CodeOutput out); 7643c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 7653c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein /** 7663c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Helper method that decodes any of the register-list formats. 7673c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 7683c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static DecodedInstruction decodeRegisterList( 76919cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein InstructionCodec format, int opcodeUnit, CodeInput in) 77019cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein throws EOFException { 7713c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 7723c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int e = nibble2(opcodeUnit); 7733c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int registerCount = nibble3(opcodeUnit); 7743c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int index = in.read(); 7753c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int abcd = in.read(); 7763c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = nibble0(abcd); 7773c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int b = nibble1(abcd); 7783c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int c = nibble2(abcd); 7793c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int d = nibble3(abcd); 7803c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein IndexType indexType = OpcodeInfo.getIndexType(opcode); 781740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein 782740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein // TODO: Having to switch like this is less than ideal. 783740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein switch (registerCount) { 784740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein case 0: 785740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new ZeroRegisterDecodedInstruction( 786740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein format, opcode, index, indexType, 787d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L); 788740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein case 1: 789740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new OneRegisterDecodedInstruction( 790740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein format, opcode, index, indexType, 791d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 792740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a); 793740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein case 2: 794740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new TwoRegisterDecodedInstruction( 795740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein format, opcode, index, indexType, 796d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 797740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b); 798740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein case 3: 799740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new ThreeRegisterDecodedInstruction( 800740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein format, opcode, index, indexType, 801d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 802740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b, c); 803740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein case 4: 804740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new FourRegisterDecodedInstruction( 805740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein format, opcode, index, indexType, 806d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 807740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b, c, d); 808740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein case 5: 809740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new FiveRegisterDecodedInstruction( 810740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein format, opcode, index, indexType, 811d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 812740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, b, c, d, e); 813740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein } 814740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein 815740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein throw new DexException("bogus registerCount: " 816740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein + Hex.uNibble(registerCount)); 8173c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8183c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8193c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein /** 8203c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Helper method that encodes any of the register-list formats. 8213c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 8223c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static void encodeRegisterList(DecodedInstruction insn, 8233c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein CodeOutput out) { 8243c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write(codeUnit(insn.getOpcode(), 8253c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein makeByte(insn.getE(), insn.getRegisterCount())), 8263c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein insn.getIndexUnit(), 8273c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein codeUnit(insn.getA(), insn.getB(), insn.getC(), insn.getD())); 8283c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8293c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8303c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein /** 8313c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Helper method that decodes any of the three-unit register-range formats. 8323c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 8333c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static DecodedInstruction decodeRegisterRange( 83419cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein InstructionCodec format, int opcodeUnit, CodeInput in) 83519cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein throws EOFException { 8363c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int opcode = byte0(opcodeUnit); 8373c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int registerCount = byte1(opcodeUnit); 8383c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int index = in.read(); 8393c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int a = in.read(); 8403c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein IndexType indexType = OpcodeInfo.getIndexType(opcode); 841740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein return new RegisterRangeDecodedInstruction( 842740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein format, opcode, index, indexType, 843d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 0, 0L, 844740fce415cf1a982e9b035604f432eed378fbd05Dan Bornstein a, registerCount); 8453c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8463c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8473c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein /** 8483c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Helper method that encodes any of the three-unit register-range formats. 8493c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 8503c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static void encodeRegisterRange(DecodedInstruction insn, 8513c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein CodeOutput out) { 8523c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein out.write(codeUnit(insn.getOpcode(), insn.getRegisterCount()), 8533c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein insn.getIndexUnit(), 8543c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein insn.getAUnit()); 8553c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8563c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8573c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static short codeUnit(int lowByte, int highByte) { 8583c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein if ((lowByte & ~0xff) != 0) { 8593c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein throw new IllegalArgumentException("bogus lowByte"); 8603c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8613c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8623c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein if ((highByte & ~0xff) != 0) { 8633c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein throw new IllegalArgumentException("bogus highByte"); 8643c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8653c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8663c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (short) (lowByte | (highByte << 8)); 8673c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8683c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8693c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static short codeUnit(int nibble0, int nibble1, int nibble2, 8703c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein int nibble3) { 8713c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein if ((nibble0 & ~0xf) != 0) { 8723c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein throw new IllegalArgumentException("bogus nibble0"); 8733c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8743c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8753c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein if ((nibble1 & ~0xf) != 0) { 8763c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein throw new IllegalArgumentException("bogus nibble1"); 8773c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8783c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8793c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein if ((nibble2 & ~0xf) != 0) { 8803c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein throw new IllegalArgumentException("bogus nibble2"); 8813c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8823c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8833c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein if ((nibble3 & ~0xf) != 0) { 8843c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein throw new IllegalArgumentException("bogus nibble3"); 8853c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8863c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8873c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (short) (nibble0 | (nibble1 << 4) 8883c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein | (nibble2 << 8) | (nibble3 << 12)); 8893c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8903c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8913c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static int makeByte(int lowNibble, int highNibble) { 8923c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein if ((lowNibble & ~0xf) != 0) { 8933c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein throw new IllegalArgumentException("bogus lowNibble"); 8943c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8953c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 8963c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein if ((highNibble & ~0xf) != 0) { 8973c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein throw new IllegalArgumentException("bogus highNibble"); 8983c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 8993c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9003c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return lowNibble | (highNibble << 4); 9013c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9023c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 903d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein private static short asUnsignedUnit(int value) { 904d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein if ((value & ~0xffff) != 0) { 905d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein throw new IllegalArgumentException("bogus unsigned code unit"); 906d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 907d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 908d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein return (short) value; 909d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein } 910d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornstein 9113c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static short unit0(int value) { 9123c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (short) value; 9133c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9143c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9153c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static short unit1(int value) { 9163c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (short) (value >> 16); 9173c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9183c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9193c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static short unit0(long value) { 9203c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (short) value; 9213c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9223c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9233c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static short unit1(long value) { 9243c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (short) (value >> 16); 9253c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9263c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9273c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static short unit2(long value) { 9283c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (short) (value >> 32); 9293c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9303c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9313c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static short unit3(long value) { 9323c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (short) (value >> 48); 9333c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9343c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9353c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static int byte0(int value) { 9363c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return value & 0xff; 9373c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9383c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9393c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static int byte1(int value) { 9403c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (value >> 8) & 0xff; 9413c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9423c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9433c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static int byte2(int value) { 9443c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (value >> 16) & 0xff; 9453c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9463c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9473c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static int byte3(int value) { 9483c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return value >>> 24; 9493c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9503c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9513c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static int nibble0(int value) { 9523c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return value & 0xf; 9533c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9543c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9553c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static int nibble1(int value) { 9563c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (value >> 4) & 0xf; 9573c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9583c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9593c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static int nibble2(int value) { 9603c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (value >> 8) & 0xf; 9613c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9623c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 9633c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein private static int nibble3(int value) { 9643c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein return (value >> 12) & 0xf; 9653c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein } 9663c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein} 967