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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 SPARCJmplInstruction extends SPARCInstruction
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30 implements BranchInstruction {
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31 final protected SPARCRegisterIndirectAddress addr;
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32 final protected SPARCRegister rd;
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33
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34 protected SPARCJmplInstruction(String name, SPARCRegisterIndirectAddress addr, SPARCRegister rd) {
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35 super(name);
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36 this.addr = addr;
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37 this.rd = rd;
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38 }
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39
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40 public SPARCJmplInstruction(SPARCRegisterIndirectAddress addr, SPARCRegister rd) {
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41 this("jmpl", addr, rd);
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42 }
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43
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44 protected String getDescription() {
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45 StringBuffer buf = new StringBuffer();
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46 String addrStr = addr.toString();
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47 // remove '[' & ']' from address
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48 addrStr = addrStr.substring(1, addrStr.length() - 1);
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49 if (rd == SPARCRegisters.G0) {
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50 buf.append("jmp");
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51 buf.append(spaces);
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52 buf.append(addrStr);
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53 } else {
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54 buf.append(getName());
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55 buf.append(spaces);
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56 buf.append(addrStr);
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57 buf.append(comma);
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58 buf.append(rd.toString());
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59 }
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60
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61 return buf.toString();
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62 }
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63
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64 public String asString(long currentPc, SymbolFinder symFinder) {
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65 return getDescription();
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66 }
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67
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68 public Address getBranchDestination() {
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69 return addr;
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70 }
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71
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72 public SPARCRegister getReturnAddressRegister() {
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73 return rd;
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74 }
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75
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76 public boolean isAnnuledBranch() {
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77 return false;
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78 }
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79
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80 public boolean isBranch() {
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81 return true;
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82 }
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83
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84 public boolean isConditional() {
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85 return false;
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86 }
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87 }
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