1 /* |
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2 * Copyright (c) 2002, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * 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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