1 /*

     2  * Copyright (c) 2002, 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.sparc;

    26 

    27 import sun.jvm.hotspot.asm.*;

    28 

    29 public abstract class SPARCV9PrivilegedRegisterInstruction extends SPARCInstruction

    30                           implements SPARCV9Instruction, /* imports */ SPARCV9PrivilegedRegisters {

    31     protected static final String regNames[] = {

    32         "%tpc", "%tnpc", "%tstate", "%tt", "%tick", "%tba", "%pstate", "%tl",

    33         "%pil", "%cwp",  "%cansave", "%canrestore", "%cleanwin", "%otherwin", "%wstate", "%fq"

    34     };

    35 

    36     protected static String getPrivilegedRegisterName(int regNum) {

    37         if ((regNum > 15 && regNum < 31) || regNum > 31)

    38             return null;

    39         return (regNum == 31)? "%ver" : regNames[regNum];

    40     }

    41 

    42     final protected int regNum;

    43 

    44     protected abstract String getDescription();

    45 

    46     protected SPARCV9PrivilegedRegisterInstruction(String name, int regNum) {

    47         super(name);

    48         this.regNum = regNum;

    49     }

    50 

    51     public int getPrivilegedRegisterNumber() {

    52         return regNum;

    53     }

    54 

    55     public String asString(long currentPc, SymbolFinder symFinder) {

    56         return getDescription();

    57     }

    58 }