1 /* 2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, 20 * CA 94065 USA or visit www.oracle.com if you need additional information or 21 * have any questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.asm.x86; 26 27 import sun.jvm.hotspot.utilities.*; 28 29 /* 8 64-bit registers called MMX registers*/ 30 31 public class X86MMXRegisters { 32 33 public static final int NUM_MMX_REGISTERS = 8; 34 35 public static final X86MMXRegister MM0; 36 public static final X86MMXRegister MM1; 37 public static final X86MMXRegister MM2; 38 public static final X86MMXRegister MM3; 39 public static final X86MMXRegister MM4; 40 public static final X86MMXRegister MM5; 41 public static final X86MMXRegister MM6; 42 public static final X86MMXRegister MM7; 43 44 private static X86MMXRegister mmxRegisters[]; 45 46 static { 47 //MMX registers 48 MM0 = new X86MMXRegister(0, "%mm0"); 49 MM1 = new X86MMXRegister(1, "%mm1"); 50 MM2 = new X86MMXRegister(2, "%mm2"); 51 MM3 = new X86MMXRegister(3, "%mm3"); 52 MM4 = new X86MMXRegister(4, "%mm4"); 53 MM5 = new X86MMXRegister(5, "%mm5"); 54 MM6 = new X86MMXRegister(6, "%mm6"); 55 MM7 = new X86MMXRegister(7, "%mm7"); 56 57 mmxRegisters = (new X86MMXRegister[] { 58 MM0, MM1, MM2, MM3, MM4, MM5, MM6, MM7 59 }); 60 } 61 62 public static int getNumberOfRegisters() { 63 return NUM_MMX_REGISTERS; 64 } 65 66 //Return the register name 67 public static String getRegisterName(int regNum) { 68 if (Assert.ASSERTS_ENABLED) { 69 Assert.that(regNum > -1 && regNum < NUM_MMX_REGISTERS, "invalid MMX register number!"); 70 } 71 return mmxRegisters[regNum].toString(); 72 } 73 74 public static X86MMXRegister getRegister(int regNum) { 75 if (Assert.ASSERTS_ENABLED) { 76 Assert.that(regNum > -1 && regNum < NUM_MMX_REGISTERS, "invalid MMX register number!"); 77 } 78 return mmxRegisters[regNum]; 79 } 80 }