1 /* 2 * Copyright (c) 2002, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, 20 * CA 94065 USA or visit www.oracle.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 }