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annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/AssemblyInstructionEditor.java @ 3735:61369a06f03c

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Updated authors file.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sat, 17 Dec 2011 20:36:28 +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;
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24
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25 import com.sun.max.lang.*;
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26
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27 /**
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28 * Interface for target code edition. Currently, used by the JIT only, for template-based code generation.
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29 * The interface is currently customized to the need of the JIT.
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30 */
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31 public interface AssemblyInstructionEditor {
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32
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33 /**
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34 * Returns the displacement in the edited instruction.
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35 * @param displacementWidth the width of the displacement in the instruction
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36 * @return the displacement in the edited instruction
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37 */
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38 int getIntDisplacement(WordWidth displacementWidth) throws AssemblyException;
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39
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40 /**
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41 * Returns the immediate int value in the edited instruction.
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42 * @param displacementWidth the width of the displacement in the instruction
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43 * @return the displacement in the edited instruction
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44 */
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45 int getIntImmediate(WordWidth immediateWidth) throws AssemblyException;
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46
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47 /**
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48 * Replaces the value of the immediate displacement in a load/store instruction.
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49 * The original instruction must have an immediate displacement operand that can hold 8-bit immediate value.
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50 * @param displacementWidth width of the displacement in the original instruction
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51 * @param withIndex indicate if the instruction uses a register index.
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52 * @param disp8 new value of the displacement.
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53 */
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54 void fixDisplacement(WordWidth displacementWidth, boolean withIndex, byte disp8);
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55
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56 /**
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57 * Replaces the value of the immediate displacement in a load/store instruction.
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58 * The original instruction must have an immediate displacement operand that can hold 32-bit immediate value.
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59 * @param disp32
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60 * @throws AssemblyException
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61 * if the replacement is not allowed (e.g., the instruction is
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62 * not a load/store with immediate displacement parameter).
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63 */
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64 void fixDisplacement(WordWidth displacementWidth, boolean withIndex, int disp32) throws AssemblyException;
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65
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66 /**
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67 * Replaces the value of the immediate source operand of an instruction.
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68 * (tested with store instruction only).
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69 * @param operandWidth the width of the operand being replaced
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70 * @param imm8 the new immediate value of the operand.
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71 */
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72 void fixImmediateOperand(WordWidth operandWidth, byte imm8);
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73
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74 /**
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75 * Replaces the value of the immediate source operand of an instruction.
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76 * (tested with store instruction only).
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77 * @param operandWidth the width of the operand being replaced
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78 * @param imm16 the new immediate value of the operand.
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79 */
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80 void fixImmediateOperand(WordWidth operandWidth, short imm16);
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81
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82 /**
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83 * Replaces the value of the immediate source operand of an instruction.
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84 * (tested with store instruction only).
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85 * @param operandWidth the width of the operand being replaced
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86 * @param imm32 the new immediate value of the operand.
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87 */
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88 void fixImmediateOperand(WordWidth operandWidth, int imm32);
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89
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90 /**
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91 * Replaces the value of the immediate source operand of an instruction.
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92 * @param imm64 the new immediate value of the operand.
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93 */
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94 void fixImmediateOperand(int imm32);
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95
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96 /**
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97 * Replaces the value of the immediate source operand of an instruction.
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98 * @param imm64 the new immediate value of the operand.
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99 */
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100 void fixImmediateOperand(long imm64);
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101
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102 /**
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103 * Fix relative displacement of a branch instruction.
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104 *
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105 * @param originalDisplacementWidth
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106 * @param displacementWidth width of the relative displacement in the original instruction
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107 * @param disp32 new relative displacement
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108 */
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109 void fixBranchRelativeDisplacement(WordWidth displacementWidth, int disp32) throws AssemblyException;
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110 }