Mercurial > hg > truffle
annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/amd64/AMD64IndexRegister64.java @ 3733:e233f5660da4
Added Java files from Maxine project.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 19:59:18 +0100 |
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children | bc8527f3071c |
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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.amd64; |
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24 |
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25 import com.sun.max.asm.x86.*; |
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26 import com.sun.max.lang.*; |
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27 import com.sun.max.util.*; |
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28 |
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29 /** |
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30 * Aliases for 64-bit AMD64 general registers to be used as index registers. |
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31 */ |
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32 public enum AMD64IndexRegister64 implements GeneralRegister<AMD64IndexRegister64> { |
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33 |
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34 RAX_INDEX, |
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35 RCX_INDEX, |
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36 RDX_INDEX, |
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37 RBX_INDEX, |
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38 // no RSP_INDEX! |
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39 RBP_INDEX, |
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40 RSI_INDEX, |
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41 RDI_INDEX, |
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42 R8_INDEX, |
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43 R9_INDEX, |
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44 R10_INDEX, |
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45 R11_INDEX, |
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46 R12_INDEX, |
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47 R13_INDEX, |
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48 R14_INDEX, |
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49 R15_INDEX; |
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50 |
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51 public static AMD64IndexRegister64 from(GeneralRegister generalRegister) { |
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52 int ordinal = generalRegister.id(); |
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53 if (ordinal >= AMD64GeneralRegister64.RSP.id()) { |
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54 ordinal--; |
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55 } |
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56 return ENUMERATOR.get(ordinal); |
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57 } |
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58 |
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59 public int id() { |
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60 int ordinal = ordinal(); |
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61 if (ordinal >= AMD64GeneralRegister64.RSP.id()) { |
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62 ordinal++; |
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63 } |
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64 return ordinal; |
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65 } |
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66 |
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67 public WordWidth width() { |
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68 return WordWidth.BITS_64; |
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69 } |
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70 |
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71 public int value() { |
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72 return id(); |
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73 } |
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74 |
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75 public long asLong() { |
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76 return value(); |
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77 } |
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78 |
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79 public String externalValue() { |
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80 return AMD64GeneralRegister64.from(this).externalValue(); |
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81 } |
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82 |
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83 public String disassembledValue() { |
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84 return AMD64GeneralRegister64.from(this).disassembledValue(); |
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85 } |
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86 |
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87 public Enumerator<AMD64IndexRegister64> enumerator() { |
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88 return ENUMERATOR; |
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89 } |
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90 |
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91 public AMD64IndexRegister64 exampleValue() { |
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92 return RSI_INDEX; |
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93 } |
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94 |
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95 public static final Enumerator<AMD64IndexRegister64> ENUMERATOR = new Enumerator<AMD64IndexRegister64>(AMD64IndexRegister64.class); |
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96 } |