Mercurial > hg > graal-compiler

annotate agent/src/share/classes/sun/jvm/hotspot/asm/sparc/ReadDecoder.java @ 1552:c18cbe5936b8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6941466: Oracle rebranding changes for Hotspot repositories Summary: Change all the Sun copyrights to Oracle copyright Reviewed-by: ohair
author trims
date Thu, 27 May 2010 19:08:38 -0700
parents a61af66fc99e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
2 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load
duke
parents:
diff changeset
4 *
a61af66fc99e Initial load
duke
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load
duke
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load
duke
parents:
diff changeset
7 * published by the Free Software Foundation.
a61af66fc99e Initial load
duke
parents:
diff changeset
8 *
a61af66fc99e Initial load
duke
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load
duke
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load
duke
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load
duke
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load
duke
parents:
diff changeset
13 * accompanied this code).
a61af66fc99e Initial load
duke
parents:
diff changeset
14 *
a61af66fc99e Initial load
duke
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load
duke
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load
duke
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load
duke
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
21 * questions.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
22 *
a61af66fc99e Initial load
duke
parents:
diff changeset
23 */
a61af66fc99e Initial load
duke
parents:
diff changeset
24
a61af66fc99e Initial load
duke
parents:
diff changeset
25 package sun.jvm.hotspot.asm.sparc;
a61af66fc99e Initial load
duke
parents:
diff changeset
26
a61af66fc99e Initial load
duke
parents:
diff changeset
27 import sun.jvm.hotspot.asm.*;
a61af66fc99e Initial load
duke
parents:
diff changeset
28
a61af66fc99e Initial load
duke
parents:
diff changeset
29 class ReadDecoder extends ReadWriteDecoder {
a61af66fc99e Initial load
duke
parents:
diff changeset
30 ReadDecoder(int specialRegNum) {
a61af66fc99e Initial load
duke
parents:
diff changeset
31 super(specialRegNum);
a61af66fc99e Initial load
duke
parents:
diff changeset
32 }
a61af66fc99e Initial load
duke
parents:
diff changeset
33
a61af66fc99e Initial load
duke
parents:
diff changeset
34 Instruction decodeReadWrite(int instruction, SPARCInstructionFactory factory,
a61af66fc99e Initial load
duke
parents:
diff changeset
35 int rs1Num, int rdNum) {
a61af66fc99e Initial load
duke
parents:
diff changeset
36 Instruction instr = null;
a61af66fc99e Initial load
duke
parents:
diff changeset
37 int specialReg = specialRegNum;
a61af66fc99e Initial load
duke
parents:
diff changeset
38 if (rs1Num == 0)
a61af66fc99e Initial load
duke
parents:
diff changeset
39 specialReg = SPARCSpecialRegisters.Y;
a61af66fc99e Initial load
duke
parents:
diff changeset
40 if (rs1Num == 15 && rdNum == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
41 instr = factory.newStbarInstruction();
a61af66fc99e Initial load
duke
parents:
diff changeset
42 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
43 instr = factory.newReadInstruction(specialReg, rs1Num,
a61af66fc99e Initial load
duke
parents:
diff changeset
44 SPARCRegisters.getRegister(rdNum));
a61af66fc99e Initial load
duke
parents:
diff changeset
45 }
a61af66fc99e Initial load
duke
parents:
diff changeset
46 return instr;
a61af66fc99e Initial load
duke
parents:
diff changeset
47 }
a61af66fc99e Initial load
duke
parents:
diff changeset
48 }