1 /*
2 * Copyright 2002 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 package sun.jvm.hotspot.asm.sparc;
26
27 import sun.jvm.hotspot.asm.*;
28
29 class V9ReadDecoder extends InstructionDecoder
30 implements V9InstructionDecoder {
31 Instruction decode(int instruction, SPARCInstructionFactory factory) {
32 SPARCV9InstructionFactory v9factory = (SPARCV9InstructionFactory) factory;
33 Instruction instr = null;
34 int specialRegNum = getSourceRegister1(instruction);
35
36 // rs1 values 1, 7-14 are reserved - see page 214, A.44 Read State Register.
37 if (specialRegNum == 1 || (specialRegNum > 6 && specialRegNum < 15)) {
38 instr = v9factory.newIllegalInstruction(instruction);
39 } else {
40 int rdNum = getDestinationRegister(instruction);
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1 /*
2 * Copyright (c) 2002, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores,
20 * CA 94065 USA or visit www.oracle.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 package sun.jvm.hotspot.asm.sparc;
26
27 import sun.jvm.hotspot.asm.*;
28
29 class V9ReadDecoder extends InstructionDecoder
30 implements V9InstructionDecoder {
31 Instruction decode(int instruction, SPARCInstructionFactory factory) {
32 SPARCV9InstructionFactory v9factory = (SPARCV9InstructionFactory) factory;
33 Instruction instr = null;
34 int specialRegNum = getSourceRegister1(instruction);
35
36 // rs1 values 1, 7-14 are reserved - see page 214, A.44 Read State Register.
37 if (specialRegNum == 1 || (specialRegNum > 6 && specialRegNum < 15)) {
38 instr = v9factory.newIllegalInstruction(instruction);
39 } else {
40 int rdNum = getDestinationRegister(instruction);
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