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 }