Mercurial > hg > truffle
annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/dis/DisassembledInstruction.java @ 4235:23f41c48b19b
Re-enabled Java cleaning in gate.
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 06 Jan 2012 14:22:57 +0100 |
parents | e233f5660da4 |
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rev | line source |
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1 /* |
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2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.sun.max.asm.dis; |
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24 |
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25 import java.util.*; |
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26 |
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27 import com.sun.max.asm.*; |
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28 import com.sun.max.asm.gen.*; |
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29 |
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30 /** |
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31 * A assembly instruction in internal format, combined with the bytes that it was disassembled from. |
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32 */ |
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33 public class DisassembledInstruction implements DisassembledObject { |
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34 |
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35 private final Disassembler disassembler; |
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36 private final int startPosition; |
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37 private final byte[] bytes; |
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38 private final Template template; |
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39 private final List<Argument> arguments; |
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40 |
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41 public DisassembledInstruction(Disassembler disassembler, int position, byte[] bytes, Template template, List<Argument> arguments) { |
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42 assert bytes.length != 0; |
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43 this.disassembler = disassembler; |
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44 this.startPosition = position; |
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45 this.bytes = bytes; |
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46 this.template = template; |
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47 this.arguments = arguments; |
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48 } |
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49 |
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50 public ImmediateArgument startAddress() { |
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51 return disassembler.startAddress().plus(startPosition); |
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52 } |
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53 |
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54 /** |
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55 * Gets the address to which an offset argument of this instruction is relative. |
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56 */ |
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57 public ImmediateArgument addressForRelativeAddressing() { |
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58 return disassembler.addressForRelativeAddressing(this); |
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59 } |
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60 |
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61 public int startPosition() { |
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62 return startPosition; |
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63 } |
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64 |
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65 public int endPosition() { |
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66 return startPosition + bytes.length; |
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67 } |
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68 |
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69 public byte[] bytes() { |
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70 return bytes.clone(); |
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71 } |
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72 |
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73 public Template template() { |
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74 return template; |
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75 } |
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76 |
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77 public boolean isCode() { |
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78 return true; |
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79 } |
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80 |
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81 public List<Argument> arguments() { |
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82 return arguments; |
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83 } |
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84 |
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85 @Override |
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86 public String toString() { |
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87 return toString(disassembler.addressMapper()); |
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88 } |
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89 |
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90 public String mnemonic() { |
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91 return disassembler.mnemonic(this); |
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92 } |
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93 |
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94 public String toString(AddressMapper addressMapper) { |
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95 return disassembler.toString(this, addressMapper); |
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96 } |
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97 |
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98 public String operandsToString(AddressMapper addressMapper) { |
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99 return disassembler.operandsToString(this, addressMapper); |
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100 } |
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101 |
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102 public ImmediateArgument targetAddress() { |
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103 final int parameterIndex = template().labelParameterIndex(); |
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104 if (parameterIndex >= 0) { |
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105 final ImmediateArgument immediateArgument = (ImmediateArgument) arguments().get(parameterIndex); |
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106 final Parameter parameter = template().parameters().get(parameterIndex); |
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107 if (parameter instanceof OffsetParameter) { |
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108 return addressForRelativeAddressing().plus(immediateArgument); |
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109 } |
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110 return immediateArgument; |
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111 } |
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112 return null; |
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113 } |
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114 |
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115 public static String toHexString(byte[] bytes) { |
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116 String result = "["; |
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117 String separator = ""; |
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118 for (byte b : bytes) { |
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119 result += separator + String.format("%02X", b); |
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120 separator = " "; |
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121 } |
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122 result += "]"; |
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123 return result; |
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124 } |
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125 } |