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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.utilities.*;
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28
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29 /* 8 64-bit registers called MMX registers*/
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30
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31 public class X86MMXRegisters {
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32
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33 public static final int NUM_MMX_REGISTERS = 8;
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34
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35 public static final X86MMXRegister MM0;
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36 public static final X86MMXRegister MM1;
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37 public static final X86MMXRegister MM2;
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38 public static final X86MMXRegister MM3;
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39 public static final X86MMXRegister MM4;
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40 public static final X86MMXRegister MM5;
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41 public static final X86MMXRegister MM6;
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42 public static final X86MMXRegister MM7;
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43
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44 private static X86MMXRegister mmxRegisters[];
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45
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46 static {
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47 //MMX registers
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48 MM0 = new X86MMXRegister(0, "%mm0");
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49 MM1 = new X86MMXRegister(1, "%mm1");
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50 MM2 = new X86MMXRegister(2, "%mm2");
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51 MM3 = new X86MMXRegister(3, "%mm3");
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52 MM4 = new X86MMXRegister(4, "%mm4");
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53 MM5 = new X86MMXRegister(5, "%mm5");
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54 MM6 = new X86MMXRegister(6, "%mm6");
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55 MM7 = new X86MMXRegister(7, "%mm7");
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56
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57 mmxRegisters = (new X86MMXRegister[] {
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58 MM0, MM1, MM2, MM3, MM4, MM5, MM6, MM7
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59 });
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60 }
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61
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62 public static int getNumberOfRegisters() {
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63 return NUM_MMX_REGISTERS;
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64 }
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65
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66 //Return the register name
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67 public static String getRegisterName(int regNum) {
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68 if (Assert.ASSERTS_ENABLED) {
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69 Assert.that(regNum > -1 && regNum < NUM_MMX_REGISTERS, "invalid MMX register number!");
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70 }
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71 return mmxRegisters[regNum].toString();
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72 }
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73
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74 public static X86MMXRegister getRegister(int regNum) {
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75 if (Assert.ASSERTS_ENABLED) {
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76 Assert.that(regNum > -1 && regNum < NUM_MMX_REGISTERS, "invalid MMX register number!");
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77 }
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78 return mmxRegisters[regNum];
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79 }
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80 }
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