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