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.SymbolFinder; 28 import sun.jvm.hotspot.utilities.Assert; 29 30 public class SPARCReadInstruction extends SPARCSpecialRegisterInstruction { 31 final private int specialReg; 32 final private int asrRegNum; 33 final private SPARCRegister rd; 34 35 public SPARCReadInstruction(int specialReg, int asrRegNum, SPARCRegister rd) { 36 super("rd"); 37 this.specialReg = specialReg; 38 this.asrRegNum = asrRegNum; 39 this.rd = rd; 40 } 41 42 public int getSpecialRegister() { 43 return specialReg; 44 } 45 46 public int getAncillaryRegister() { 47 if (Assert.ASSERTS_ENABLED) 48 Assert.that(specialReg == ASR, "not an ancillary register"); 49 return asrRegNum; 50 } 51 52 protected String getDescription() { 53 StringBuffer buf = new StringBuffer(); 54 buf.append(getName()); 55 buf.append(spaces); 56 if(specialReg == ASR) 57 buf.append("%asr" + asrRegNum); 58 else 59 buf.append(getSpecialRegisterName(specialReg)); 60 buf.append(comma); 61 buf.append(rd.toString()); 62 return buf.toString(); 63 } 64 }