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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 } |