/*
 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

package sun.jvm.hotspot.asm.sparc;

import sun.jvm.hotspot.asm.SymbolFinder;
import sun.jvm.hotspot.utilities.Assert;

public class SPARCV9ReadInstruction extends SPARCV9SpecialRegisterInstruction {
    final private int specialReg;
    final private int asrRegNum;
    final private SPARCRegister rd;

    public SPARCV9ReadInstruction(int specialReg, int asrRegNum, SPARCRegister rd) {
        super("rd");
        this.specialReg = specialReg;
        this.asrRegNum = asrRegNum;
        this.rd = rd;
    }

    public int getSpecialRegister() {
        return specialReg;
    }

    public int getAncillaryRegister() {
        if (Assert.ASSERTS_ENABLED)
            Assert.that(specialReg == ASR, "not an ancillary register");
        return asrRegNum;
    }

    protected String getDescription() {
        StringBuffer buf = new StringBuffer();
        buf.append(getName());
        buf.append(spaces);
        if(specialReg == ASR)
            buf.append("%asr" + asrRegNum);
        else
            buf.append(getSpecialRegisterName(specialReg));
        buf.append(comma);
        buf.append(rd.toString());
        return buf.toString();
    }
}