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