Mercurial > hg > truffle
annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/ia32/IA32GeneralRegister8.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 | bc8527f3071c |
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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.ia32; |
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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 */ |
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31 public enum IA32GeneralRegister8 implements GeneralRegister<IA32GeneralRegister8> { |
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32 |
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33 // Note: keep the order such that 'value()' can rely on ordinals: |
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34 |
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35 AL, CL, DL, BL, AH, CH, DH, BH; |
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36 |
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37 public static final Enumerator<IA32GeneralRegister8> ENUMERATOR = new Enumerator<>(IA32GeneralRegister8.class); |
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38 |
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39 private static final IA32GeneralRegister8[] lowRegisters = {AL, CL, DL, BL}; |
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40 |
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41 public static IA32GeneralRegister8 lowFrom(GeneralRegister generalRegister) { |
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42 return lowRegisters[generalRegister.id()]; |
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43 } |
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44 |
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45 private static final IA32GeneralRegister8[] highRegisters = {AH, CH, DH, BH}; |
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46 |
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47 public static IA32GeneralRegister8 highFrom(GeneralRegister generalRegister) { |
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48 return highRegisters[generalRegister.id()]; |
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49 } |
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50 |
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51 public WordWidth width() { |
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52 return WordWidth.BITS_8; |
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53 } |
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54 |
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55 public int value() { |
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56 return ordinal(); |
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57 } |
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58 |
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59 public int id() { |
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60 return ordinal() % 4; |
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61 } |
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62 |
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63 public long asLong() { |
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64 return value(); |
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65 } |
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66 |
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67 public String externalValue() { |
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68 return "%" + name().toLowerCase(); |
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69 } |
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70 |
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71 public String disassembledValue() { |
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72 return name().toLowerCase(); |
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73 } |
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74 |
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75 public Enumerator<IA32GeneralRegister8> enumerator() { |
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76 return ENUMERATOR; |
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77 } |
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78 |
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79 public IA32GeneralRegister8 exampleValue() { |
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80 return AL; |
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81 } |
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82 } |