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 public interface Instruction { 28 public String getName(); 29 30 // total size in bytes (operands + opcode). 31 // for eg. in sparc it is always 4 (= 32bits) 32 public int getSize(); 33 34 // some type testers 35 public boolean isIllegal(); 36 public boolean isArithmetic(); 37 public boolean isLogical(); 38 public boolean isShift(); 39 public boolean isMove(); 40 public boolean isBranch(); 41 public boolean isCall(); 42 public boolean isReturn(); 43 public boolean isLoad(); 44 public boolean isStore(); 45 public boolean isFloat(); 46 public boolean isTrap(); 47 public boolean isNoop(); 48 49 // convert the instruction as String given currentPc 50 // and SymbolFinder 51 52 public String asString(long currentPc, SymbolFinder symFinder); 53 }