1 /* 2 * Copyright 2002 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 20 * CA 95054 USA or visit www.sun.com if you need additional information or 21 * have any questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.asm; 26 27 // address is calculated as (base + (index * scale) + displacement) 28 // optionally index is auto incremented or decremented 29 30 public abstract class BaseIndexScaleDispAddress extends IndirectAddress { 31 private final Register base, index; 32 private final int scale; 33 private final long disp; 34 private boolean isAutoIncr; 35 private boolean isAutoDecr; 36 37 public BaseIndexScaleDispAddress(Register base, Register index, long disp, int scale) { 38 this.base = base; 39 this.index = index; 40 this.disp = disp; 41 this.scale = scale; 42 } 43 44 public BaseIndexScaleDispAddress(Register base, Register index, long disp) { 45 this(base, index, disp, 1); 46 } 47 48 public BaseIndexScaleDispAddress(Register base, Register index) { 49 this(base, index, 0L, 1); 50 } 51 52 public BaseIndexScaleDispAddress(Register base, long disp) { 53 this(base, null, disp, 1); 54 } 55 56 public Register getBase() { 57 return base; 58 } 59 60 public Register getIndex() { 61 return index; 62 } 63 64 public int getScale() { 65 return scale; 66 } 67 68 public long getDisplacement() { 69 return disp; 70 } 71 72 // is the index auto decremented or incremented? 73 public boolean isAutoIncrement() { 74 return isAutoIncr; 75 } 76 77 public void setAutoIncrement(boolean value) { 78 isAutoIncr = value; 79 } 80 81 public boolean isAutoDecrement() { 82 return isAutoDecr; 83 } 84 85 public void setAutoDecrement(boolean value) { 86 isAutoDecr = value; 87 } 88 }