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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 # include "incls/_precompiled.incl"
  26 # include "incls/_bytecodeStream.cpp.incl"

  27 
  28 Bytecodes::Code RawBytecodeStream::raw_next_special(Bytecodes::Code code) {
  29   assert(!is_last_bytecode(), "should have been checked");
  30   // set next bytecode position
  31   address bcp = RawBytecodeStream::bcp();
  32   address end = method()->code_base() + end_bci();
  33   int l = Bytecodes::raw_special_length_at(bcp, end);
  34   if (l <= 0 || (_bci + l) > _end_bci) {
  35     code = Bytecodes::_illegal;
  36   } else {
  37     _next_bci += l;
  38     assert(_bci < _next_bci, "length must be > 0");
  39     // set attributes
  40     _is_wide = false;
  41     // check for special (uncommon) cases
  42     if (code == Bytecodes::_wide) {
  43       if (bcp + 1 >= end) {
  44         code = Bytecodes::_illegal;
  45       } else {
  46         code = (Bytecodes::Code)bcp[1];

   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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "interpreter/bytecodeStream.hpp"
  27 #include "interpreter/bytecodes.hpp"
  28 
  29 Bytecodes::Code RawBytecodeStream::raw_next_special(Bytecodes::Code code) {
  30   assert(!is_last_bytecode(), "should have been checked");
  31   // set next bytecode position
  32   address bcp = RawBytecodeStream::bcp();
  33   address end = method()->code_base() + end_bci();
  34   int l = Bytecodes::raw_special_length_at(bcp, end);
  35   if (l <= 0 || (_bci + l) > _end_bci) {
  36     code = Bytecodes::_illegal;
  37   } else {
  38     _next_bci += l;
  39     assert(_bci < _next_bci, "length must be > 0");
  40     // set attributes
  41     _is_wide = false;
  42     // check for special (uncommon) cases
  43     if (code == Bytecodes::_wide) {
  44       if (bcp + 1 >= end) {
  45         code = Bytecodes::_illegal;
  46       } else {
  47         code = (Bytecodes::Code)bcp[1];