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.SymbolFinder;

    28 import java.util.Vector;

    29 

    30 public class SPARCV9MembarInstruction extends SPARCInstruction

    31                   implements SPARCV9Instruction {

    32     final private int mmask;

    33     final private int cmask;

    34     final private String description;

    35 

    36     public SPARCV9MembarInstruction(int mmask, int cmask) {

    37         super("membar");

    38         this.mmask = mmask & 0xF;

    39         this.cmask = cmask & 0x7;

    40         description = initDescription();

    41     }

    42 

    43     private String initDescription() {

    44         StringBuffer buf = new StringBuffer();

    45         buf.append(getName());

    46         buf.append(spaces);

    47 

    48         Vector masks = new Vector();

    49         if ((mmask & 0x1) != 0)

    50             masks.add("#LoadLoad");

    51         if ((mmask & 0x2) != 0)

    52             masks.add("#StoreLoad");

    53         if ((mmask & 0x4) != 0)

    54             masks.add("#LoadStore");

    55         if ((mmask & 0x8) != 0)

    56             masks.add("#StoreStore");

    57 

    58         if ((cmask & 0x1) != 0)

    59             masks.add("#Lookaside");

    60         if ((cmask & 0x2) != 0)

    61             masks.add("#MemIssue");

    62         if ((cmask & 0x4) != 0)

    63             masks.add("#Sync");

    64 

    65         // add all masks

    66         Object[] tempMasks = masks.toArray();

    67         for (int i=0; i < tempMasks.length - 1; i++) {

    68             buf.append((String)tempMasks[i]);

    69             buf.append("| ");

    70         }

    71         buf.append((String)tempMasks[tempMasks.length - 1]);

    72 

    73         return buf.toString();

    74     }

    75 

    76     public int getMMask() {

    77         return mmask;

    78     }

    79 

    80     public int getCMask() {

    81         return cmask;

    82     }

    83 

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

    85         return description;

    86     }

    87 }