hotspot/src/share/vm/interpreter/bytecodeStream.cpp
changeset 1 489c9b5090e2
child 1493 7d2dc5fbfa8c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/interpreter/bytecodeStream.cpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,48 @@
+/*
+ * Copyright 1997-2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+# include "incls/_precompiled.incl"
+# include "incls/_bytecodeStream.cpp.incl"
+
+Bytecodes::Code RawBytecodeStream::raw_next_special(Bytecodes::Code code) {
+  assert(!is_last_bytecode(), "should have been checked");
+  // set next bytecode position
+  address bcp  = RawBytecodeStream::bcp();
+  int l = Bytecodes::raw_special_length_at(bcp);
+  if (l <= 0 || (_bci + l) > _end_bci) {
+    code = Bytecodes::_illegal;
+  } else {
+    _next_bci += l;
+    assert(_bci < _next_bci, "length must be > 0");
+    // set attributes
+    _is_wide = false;
+    // check for special (uncommon) cases
+    if (code == Bytecodes::_wide) {
+      code = (Bytecodes::Code)bcp[1];
+      _is_wide = true;
+    }
+  }
+  _code = code;
+  return code;
+}