1 /*
   2  * Copyright 2002 Sun Microsystems, Inc.  All Rights Reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *
  23  */
  24 
  25 package sun.jvm.hotspot.asm.sparc;
  26 
  27 import sun.jvm.hotspot.asm.*;
  28 
  29 public class SPARCJmplInstruction extends SPARCInstruction
  30     implements BranchInstruction {
  31     final protected SPARCRegisterIndirectAddress addr;
  32     final protected SPARCRegister rd;
  33 
  34     protected SPARCJmplInstruction(String name, SPARCRegisterIndirectAddress addr, SPARCRegister rd) {
  35         super(name);
  36         this.addr = addr;
  37         this.rd = rd;
  38     }
  39 
  40     public SPARCJmplInstruction(SPARCRegisterIndirectAddress addr, SPARCRegister rd) {
  41         this("jmpl", addr, rd);
  42     }
  43 
  44     protected String getDescription() {
  45         StringBuffer buf = new StringBuffer();
  46         String addrStr = addr.toString();
  47         // remove '[' & ']' from address
  48         addrStr = addrStr.substring(1, addrStr.length() - 1);
  49         if (rd == SPARCRegisters.G0) {
  50             buf.append("jmp");
  51             buf.append(spaces);
  52             buf.append(addrStr);
  53         } else {
  54             buf.append(getName());
  55             buf.append(spaces);
  56             buf.append(addrStr);
  57             buf.append(comma);
  58             buf.append(rd.toString());
  59         }
  60 
  61         return buf.toString();
  62     }
  63 
  64     public String asString(long currentPc, SymbolFinder symFinder) {
  65         return getDescription();
  66     }
  67 
  68     public Address getBranchDestination() {
  69         return addr;
  70     }
  71 
  72     public SPARCRegister getReturnAddressRegister() {
  73         return rd;
  74     }
  75 
  76     public boolean isAnnuledBranch() {
  77         return false;
  78     }
  79 
  80     public boolean isBranch() {
  81         return true;
  82     }
  83 
  84     public boolean isConditional() {
  85         return false;
  86     }
  87 }