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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.*;
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28
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29 public class SPARCV9RegisterBranchInstruction extends SPARCInstruction
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30 implements SPARCV9Instruction, BranchInstruction {
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31 final protected PCRelativeAddress addr;
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32 final protected boolean isAnnuled;
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33 final protected int regConditionCode;
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34 final protected SPARCRegister conditionRegister;
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35 final protected boolean predictTaken;
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36
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37 public SPARCV9RegisterBranchInstruction(String name, PCRelativeAddress addr,
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38 boolean isAnnuled, int regConditionCode,
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39 SPARCRegister conditionRegister, boolean predictTaken) {
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40 super(name);
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41 this.addr = addr;
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42 this.isAnnuled = isAnnuled;
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43 this.regConditionCode = regConditionCode;
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44 this.conditionRegister = conditionRegister;
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45 this.predictTaken = predictTaken;
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46 }
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47
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48 public String asString(long currentPc, SymbolFinder symFinder) {
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49 long address = addr.getDisplacement() + currentPc;
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50 StringBuffer buf = new StringBuffer();
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51 buf.append(getName());
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52 buf.append(spaces);
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53 buf.append(symFinder.getSymbolFor(address));
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54 return buf.toString();
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55 }
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56
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57 public boolean isBranch() {
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58 return true;
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59 }
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60
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61 public Address getBranchDestination() {
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62 return addr;
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63 }
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64
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65 public boolean isAnnuledBranch() {
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66 return isAnnuled;
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67 }
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68
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69 public boolean isConditional() {
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70 return true;
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71 }
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72
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73 public int getRegisterConditionCode() {
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74 return regConditionCode;
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75 }
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76
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77 public SPARCRegister getConditionRegister() {
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78 return conditionRegister;
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79 }
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80
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81 public boolean getPredictTaken() {
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82 return predictTaken;
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83 }
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84 }
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