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1 /*
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2 * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.asm;
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26
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27 public interface Instruction {
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28 public String getName();
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29
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30 // total size in bytes (operands + opcode).
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31 // for eg. in sparc it is always 4 (= 32bits)
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32 public int getSize();
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33
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34 // some type testers
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35 public boolean isIllegal();
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36 public boolean isArithmetic();
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37 public boolean isLogical();
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38 public boolean isShift();
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39 public boolean isMove();
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40 public boolean isBranch();
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41 public boolean isCall();
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42 public boolean isReturn();
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43 public boolean isLoad();
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44 public boolean isStore();
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45 public boolean isFloat();
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46 public boolean isTrap();
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47 public boolean isNoop();
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48
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49 // convert the instruction as String given currentPc
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50 // and SymbolFinder
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51
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52 public String asString(long currentPc, SymbolFinder symFinder);
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53 }
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