/*
 * Copyright (c) 2007, 2011, 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 com.sun.max.asm.gen.risc.bitRange;

/**
 * The bit range order of an instruction set is how the bit positions of instruction fields
 * are specified in the architecture manual.
 */
public enum BitRangeOrder {

    DESCENDING {
        @Override
        public SimpleBitRange createSimpleBitRange(int firstBitIndex, int lastBitIndex) {
            return new DescendingBitRange(firstBitIndex, lastBitIndex);
        }
    },

    ASCENDING {
        @Override
        public SimpleBitRange createSimpleBitRange(int firstBitIndex, int lastBitIndex) {
            return new AscendingBitRange(firstBitIndex, lastBitIndex);
        }
    };

    public abstract SimpleBitRange createSimpleBitRange(int firstBitIndex, int lastBitIndex);

}