1 /* 2 * Copyright 2003 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.ia64; 26 27 import sun.jvm.hotspot.asm.*; 28 import sun.jvm.hotspot.runtime.*; 29 import sun.jvm.hotspot.utilities.*; 30 31 public class IA64Register extends Register { 32 33 // 34 private static final int STACKED_BASE = 32; 35 private static final int STACKED_END = 127; 36 37 // We put application registers here too rather than separate types 38 private static final int APPL_BASE = 128; 39 40 private static final int nofRegisters = 129; // total number of registers 41 42 /** Constructor for an explicitly numbered register */ 43 public IA64Register(int number) { 44 super(number); 45 } 46 47 public int getNumberOfRegisters() { 48 return nofRegisters; 49 } 50 51 public boolean isStacked() { 52 return (32 <= getNumber()); 53 } 54 55 /** NOTE: this returns an offset in BYTES in this system! */ 56 public long spOffsetInSavedWindow() { 57 return 0; 58 } 59 60 public String toString() { 61 return IA64Registers.getRegisterName(number); 62 } 63 64 public boolean isFramePointer() { 65 return number == APPL_BASE; 66 } 67 68 public boolean isStackPointer() { 69 return number == 12; 70 } 71 72 public boolean isFloat() { 73 return false; 74 } 75 76 }