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1 /*
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2 * Copyright 2002 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.asm.sparc;
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26
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27 import sun.jvm.hotspot.asm.SymbolFinder;
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28 import java.util.Vector;
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29
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30 public class SPARCV9MembarInstruction extends SPARCInstruction
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31 implements SPARCV9Instruction {
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32 final private int mmask;
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33 final private int cmask;
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34 final private String description;
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35
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36 public SPARCV9MembarInstruction(int mmask, int cmask) {
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37 super("membar");
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38 this.mmask = mmask & 0xF;
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39 this.cmask = cmask & 0x7;
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40 description = initDescription();
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41 }
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42
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43 private String initDescription() {
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44 StringBuffer buf = new StringBuffer();
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45 buf.append(getName());
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46 buf.append(spaces);
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47
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48 Vector masks = new Vector();
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49 if ((mmask & 0x1) != 0)
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50 masks.add("#LoadLoad");
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51 if ((mmask & 0x2) != 0)
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52 masks.add("#StoreLoad");
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53 if ((mmask & 0x4) != 0)
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54 masks.add("#LoadStore");
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55 if ((mmask & 0x8) != 0)
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56 masks.add("#StoreStore");
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57
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58 if ((cmask & 0x1) != 0)
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59 masks.add("#Lookaside");
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60 if ((cmask & 0x2) != 0)
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61 masks.add("#MemIssue");
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62 if ((cmask & 0x4) != 0)
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63 masks.add("#Sync");
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64
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65 // add all masks
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66 Object[] tempMasks = masks.toArray();
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67 for (int i=0; i < tempMasks.length - 1; i++) {
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68 buf.append((String)tempMasks[i]);
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69 buf.append("| ");
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70 }
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71 buf.append((String)tempMasks[tempMasks.length - 1]);
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72
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73 return buf.toString();
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74 }
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75
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76 public int getMMask() {
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77 return mmask;
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78 }
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79
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80 public int getCMask() {
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81 return cmask;
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82 }
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83
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84 public String asString(long currentPc, SymbolFinder symFinder) {
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85 return description;
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86 }
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87 }
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