1 /*

     2  * Copyright (c) 2002, 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, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    24 

    25 package sun.jvm.hotspot.asm.x86;

    26 

    27 import sun.jvm.hotspot.utilities.Assert;

    28 

    29 public class X86FloatRegisters {

    30 

    31    public static int getNumRegisters() {

    32       return NUM_REGISTERS;

    33    }

    34 

    35    public static X86FloatRegister getRegister(int regNum) {

    36       if (Assert.ASSERTS_ENABLED) {

    37          Assert.that(regNum > -1 && regNum < NUM_REGISTERS, "invalid float register number!");

    38       }

    39       return registers[regNum];

    40    }

    41 

    42    public static String getRegisterName(int i) {

    43       return "ST(" + i + ")";

    44    }

    45 

    46    public static final X86FloatRegister ST0;

    47    public static final X86FloatRegister ST1;

    48    public static final X86FloatRegister ST2;

    49    public static final X86FloatRegister ST3;

    50    public static final X86FloatRegister ST4;

    51    public static final X86FloatRegister ST5;

    52    public static final X86FloatRegister ST6;

    53    public static final X86FloatRegister ST7;

    54 

    55    public static final int NUM_REGISTERS = 8;

    56 

    57    private static final X86FloatRegister registers[];

    58 

    59    static {

    60       ST0 = new X86FloatRegister(0);

    61       ST1 = new X86FloatRegister(1);

    62       ST2 = new X86FloatRegister(2);

    63       ST3 = new X86FloatRegister(3);

    64       ST4 = new X86FloatRegister(4);

    65       ST5 = new X86FloatRegister(5);

    66       ST6 = new X86FloatRegister(6);

    67       ST7 = new X86FloatRegister(7);

    68       registers = (new X86FloatRegister[] {

    69          ST0, ST1, ST2, ST3, ST4, ST5, ST6, ST7

    70       });

    71    }

    72 }