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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.x86;
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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 X86MoveInstruction extends X86Instruction
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30 implements MoveInstruction, RTLOperations {
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31 private ImmediateOrRegister source;
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32 private X86Register destination;
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33
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34 public X86MoveInstruction(String name, X86Register rd, ImmediateOrRegister oSrc, int size, int prefixes) {
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35 super(name, size, prefixes);
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36 this.source = oSrc;
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37 this.destination = rd;
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38 }
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39 public String asString(long currentPc, SymbolFinder symFinder) {
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40 StringBuffer buf = new StringBuffer();
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41 buf.append(getPrefixString());
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42 buf.append(getName());
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43 buf.append(spaces);
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44 buf.append(destination.toString());
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45 buf.append(comma);
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46 buf.append(getSourceString());
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47 return buf.toString();
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48 }
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49
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50 protected String getSourceString() {
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51 StringBuffer buf = new StringBuffer();
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52 if ((source instanceof Register)) {
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53 buf.append(source.toString());
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54 } else {
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55 Number number = ((Immediate)source).getNumber();
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56 buf.append("0x");
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57 buf.append(Integer.toHexString(number.intValue()));
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58 }
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59 return buf.toString();
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60 }
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61
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62 public ImmediateOrRegister getMoveSource() {
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63 return source;
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64 }
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65
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66 public Register getMoveDestination() {
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67 return destination;
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68 }
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69
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70 // for condition moves
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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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75 public boolean isMove() {
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76 return true;
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77 }
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78 }
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