1 /*

     2  * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright 2012, 2015 SAP AG. All rights reserved.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  *

    24  */

    25 

    26 #ifndef CPU_PPC_VM_INTERPRETER_PPC_HPP

    27 #define CPU_PPC_VM_INTERPRETER_PPC_HPP

    28 

    29  public:

    30 

    31   // Stack index relative to tos (which points at value).

    32   static int expr_index_at(int i) {

    33     return stackElementWords * i;

    34   }

    35 

    36   // Already negated by c++ interpreter.

    37   static int local_index_at(int i) {

    38     assert(i <= 0, "local direction already negated");

    39     return stackElementWords * i;

    40   }

    41 

    42   // The offset in bytes to access a expression stack slot

    43   // relative to the esp pointer.

    44   static int expr_offset_in_bytes(int slot) {

    45     return stackElementSize * slot + wordSize;

    46   }

    47 

    48 #endif // CPU_PPC_VM_INTERPRETER_PPC_HPP