Mercurial > hg > truffle

annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/dis/DisassembledInstruction.java @ 4150:c78bace5086a

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start work on integrating old hooks into mx, work on sanity checks introduce a DB class to access the bench DB in an easier way (create benchmarks and benchmark values automatically in the DB)
author Gilles Duboscq <gilles.m.duboscq@gmail.com>
date Tue, 20 Dec 2011 15:34:43 +0100
parents e233f5660da4
children
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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 }