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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
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29 public class SPARCSethiInstruction extends SPARCInstruction
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30 implements MoveInstruction {
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31 final private SPARCRegister register;
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32 final private ImmediateOrRegister value;
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33 final private String description;
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34
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35 public SPARCSethiInstruction(int value, SPARCRegister register) {
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36 super("sethi");
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37 this.register = register;
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38 value <<= 10;
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39 this.value = new Immediate(new Integer(value));
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40 description = initDescription(value);
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41 }
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42
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43 private String initDescription(int val) {
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44 if (val == 0 && register == SPARCRegisters.G0) {
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45 return "nop";
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46 } else {
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47 StringBuffer buf = new StringBuffer();
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48 buf.append(getName());
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49 buf.append(spaces);
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50 buf.append("%hi(0x");
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51 buf.append(Integer.toHexString(val));
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52 buf.append(')');
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53 buf.append(comma);
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54 buf.append(register.toString());
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55 return buf.toString();
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56 }
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57 }
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58
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59 public String asString(long currentPc, SymbolFinder symFinder) {
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60 return description;
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61 }
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62
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63 public Register getMoveDestination() {
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64 return register;
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65 }
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66
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67 public ImmediateOrRegister getMoveSource() {
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68 return value;
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69 }
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70
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71 public boolean isConditional() {
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72 return false;
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73 }
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74 }
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