Mercurial > hg > truffle

comparison src/cpu/sparc/vm/interpreter_sparc.hpp @ 0:a61af66fc99e jdk7-b24

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children 2338d41fbd81
comparison
equal deleted inserted replaced
-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 public:
26
27 // Support for Tagged Stacks
28
29 // Stack index relative to tos (which points at value)
30 static int expr_index_at(int i) {
31 return stackElementWords() * i;
32 }
33
34 static int expr_tag_index_at(int i) {
35 assert(TaggedStackInterpreter, "should not call this");
36 // tag is one word above java stack element
37 return stackElementWords() * i + 1;
38 }
39
40 static int expr_offset_in_bytes(int i) { return stackElementSize()*i + wordSize; }
41 static int expr_tag_offset_in_bytes (int i) {
42 assert(TaggedStackInterpreter, "should not call this");
43 return expr_offset_in_bytes(i) + wordSize;
44 }
45
46 // Already negated by c++ interpreter
47 static int local_index_at(int i) {
48 assert(i<=0, "local direction already negated");
49 return stackElementWords() * i + (value_offset_in_bytes()/wordSize);
50 }
51
52 static int local_tag_index_at(int i) {
53 assert(i<=0, "local direction already negated");
54 assert(TaggedStackInterpreter, "should not call this");
55 return stackElementWords() * i + (tag_offset_in_bytes()/wordSize);
56 }