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1 /*
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2 * Copyright 2002 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.sparc;
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26
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27 import sun.jvm.hotspot.asm.*;
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28 import sun.jvm.hotspot.utilities.Assert;
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29
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30 public class SPARCSpecialLoadInstruction
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31 extends SPARCSpecialRegisterInstruction
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32 implements /* imports */ SPARCSpecialRegisters {
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33 final private int specialReg;
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34 final private int cregNum;
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35 final private SPARCRegisterIndirectAddress addr;
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36
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37 public SPARCSpecialLoadInstruction(String name, int specialReg, int cregNum,
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38 SPARCRegisterIndirectAddress addr) {
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39 super(name);
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40 this.specialReg = specialReg;
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41 this.cregNum = cregNum;
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42 this.addr = addr;
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43 }
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44
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45 public SPARCSpecialLoadInstruction(String name, int specialReg, SPARCRegisterIndirectAddress addr) {
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46 this(name, specialReg, -1, addr);
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47 }
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48
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49 public int getSpecialRegister() {
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50 return specialReg;
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51 }
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52
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53 public int getCoprocessorRegister() {
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54 if (Assert.ASSERTS_ENABLED)
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55 Assert.that(specialReg == CREG, "not a coprocesssor register");
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56 return cregNum;
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57 }
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58
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59 public Address getSource() {
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60 return addr;
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61 }
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62
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63 protected String getDescription() {
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64 StringBuffer buf = new StringBuffer();
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65 buf.append(getName());
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66 buf.append(spaces);
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67 buf.append(addr);
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68 buf.append(comma);
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69 if (specialReg == CREG) {
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70 buf.append("creg" + cregNum);
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71 } else {
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72 buf.append(getSpecialRegisterName(specialReg));
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73 }
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74 return buf.toString();
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75 }
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76 }
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