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1 /*
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2 * Copyright 1997-2005 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 # include "incls/_precompiled.incl"
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26 # include "incls/_bytecodeStream.cpp.incl"
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27
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28 Bytecodes::Code RawBytecodeStream::raw_next_special(Bytecodes::Code code) {
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29 assert(!is_last_bytecode(), "should have been checked");
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30 // set next bytecode position
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31 address bcp = RawBytecodeStream::bcp();
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32 int l = Bytecodes::raw_special_length_at(bcp);
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33 if (l <= 0 || (_bci + l) > _end_bci) {
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34 code = Bytecodes::_illegal;
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35 } else {
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36 _next_bci += l;
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37 assert(_bci < _next_bci, "length must be > 0");
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38 // set attributes
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39 _is_wide = false;
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40 // check for special (uncommon) cases
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41 if (code == Bytecodes::_wide) {
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42 code = (Bytecodes::Code)bcp[1];
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43 _is_wide = true;
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44 }
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45 }
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46 _code = code;
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47 return code;
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48 }
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