annotate agent/src/share/classes/sun/jvm/hotspot/asm/sparc/V9CMoveDecoder.java @ 2042:0a8e0d4345b3 hs20-b05 jdk7-b124

7010068: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - first pass Summary: Update the copyright to be 2010 on all changed files in OpenJDK Reviewed-by: jcoomes
author trims
date Mon, 03 Jan 2011 15:30:05 -0800
parents c18cbe5936b8
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 import sun.jvm.hotspot.utilities.Assert;
a61af66fc99e Initial load
duke
parents:
diff changeset
29
a61af66fc99e Initial load
duke
parents:
diff changeset
30 abstract class V9CMoveDecoder extends InstructionDecoder
a61af66fc99e Initial load
duke
parents:
diff changeset
31 implements V9InstructionDecoder {
a61af66fc99e Initial load
duke
parents:
diff changeset
32 static private final String iccConditionNames[] = {
a61af66fc99e Initial load
duke
parents:
diff changeset
33 "n", "e", "le", "l", "leu", "cs", "neg", "vs",
a61af66fc99e Initial load
duke
parents:
diff changeset
34 "a", "ne", "g", "ge", "gu", "cc", "pos", "vc"
a61af66fc99e Initial load
duke
parents:
diff changeset
35 };
a61af66fc99e Initial load
duke
parents:
diff changeset
36
a61af66fc99e Initial load
duke
parents:
diff changeset
37 static private final String fccConditionNames[] = {
a61af66fc99e Initial load
duke
parents:
diff changeset
38 "fn", "fne", "flg", "ful", "fl", "fug", "fg", "fu",
a61af66fc99e Initial load
duke
parents:
diff changeset
39 "fa", "fe", "fue", "fge", "fuge", "fle", "fule", "fo"
a61af66fc99e Initial load
duke
parents:
diff changeset
40 };
a61af66fc99e Initial load
duke
parents:
diff changeset
41
a61af66fc99e Initial load
duke
parents:
diff changeset
42 static String getConditionName(int conditionCode, int conditionFlag) {
a61af66fc99e Initial load
duke
parents:
diff changeset
43 return (conditionFlag == icc || conditionFlag == xcc) ?
a61af66fc99e Initial load
duke
parents:
diff changeset
44 iccConditionNames[conditionCode]
a61af66fc99e Initial load
duke
parents:
diff changeset
45 : fccConditionNames[conditionCode];
a61af66fc99e Initial load
duke
parents:
diff changeset
46 }
a61af66fc99e Initial load
duke
parents:
diff changeset
47
a61af66fc99e Initial load
duke
parents:
diff changeset
48 static int getMoveConditionCode(int instruction) {
a61af66fc99e Initial load
duke
parents:
diff changeset
49 return (instruction & CMOVE_COND_MASK) >>> CMOVE_COND_START_BIT;
a61af66fc99e Initial load
duke
parents:
diff changeset
50 }
a61af66fc99e Initial load
duke
parents:
diff changeset
51
a61af66fc99e Initial load
duke
parents:
diff changeset
52 static int getRegisterConditionCode(int instruction) {
a61af66fc99e Initial load
duke
parents:
diff changeset
53 return (instruction & CMOVE_RCOND_MASK) >>> CMOVE_RCOND_START_BIT;
a61af66fc99e Initial load
duke
parents:
diff changeset
54 }
a61af66fc99e Initial load
duke
parents:
diff changeset
55
a61af66fc99e Initial load
duke
parents:
diff changeset
56 static ImmediateOrRegister getCMoveSource(int instruction, int numBits) {
a61af66fc99e Initial load
duke
parents:
diff changeset
57 ImmediateOrRegister source = null;
a61af66fc99e Initial load
duke
parents:
diff changeset
58 if (isIBitSet(instruction)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
59 source = new Immediate(new Short((short) extractSignedIntFromNBits(instruction, numBits)));
a61af66fc99e Initial load
duke
parents:
diff changeset
60 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
61 source = SPARCRegisters.getRegister(getSourceRegister2(instruction));
a61af66fc99e Initial load
duke
parents:
diff changeset
62 }
a61af66fc99e Initial load
duke
parents:
diff changeset
63 return source;
a61af66fc99e Initial load
duke
parents:
diff changeset
64 }
a61af66fc99e Initial load
duke
parents:
diff changeset
65
a61af66fc99e Initial load
duke
parents:
diff changeset
66 static String getFloatTypeCode(int dataType) {
a61af66fc99e Initial load
duke
parents:
diff changeset
67 String result = null;
a61af66fc99e Initial load
duke
parents:
diff changeset
68 switch(dataType) {
a61af66fc99e Initial load
duke
parents:
diff changeset
69 case RTLDT_FL_SINGLE:
a61af66fc99e Initial load
duke
parents:
diff changeset
70 result = "s";
a61af66fc99e Initial load
duke
parents:
diff changeset
71 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
72
a61af66fc99e Initial load
duke
parents:
diff changeset
73 case RTLDT_FL_DOUBLE:
a61af66fc99e Initial load
duke
parents:
diff changeset
74 result = "d";
a61af66fc99e Initial load
duke
parents:
diff changeset
75 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
76
a61af66fc99e Initial load
duke
parents:
diff changeset
77 case RTLDT_FL_QUAD:
a61af66fc99e Initial load
duke
parents:
diff changeset
78 result = "q";
a61af66fc99e Initial load
duke
parents:
diff changeset
79 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
80
a61af66fc99e Initial load
duke
parents:
diff changeset
81 default:
a61af66fc99e Initial load
duke
parents:
diff changeset
82 if (Assert.ASSERTS_ENABLED)
a61af66fc99e Initial load
duke
parents:
diff changeset
83 Assert.that(false, "should not reach here");
a61af66fc99e Initial load
duke
parents:
diff changeset
84 }
a61af66fc99e Initial load
duke
parents:
diff changeset
85 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
86 }
a61af66fc99e Initial load
duke
parents:
diff changeset
87 }