1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/*
* Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
package sun.jvm.hotspot.asm.sparc;
import sun.jvm.hotspot.asm.*;
class V9FlushwDecoder extends InstructionDecoder
implements V9InstructionDecoder {
Instruction decode(int instruction, SPARCInstructionFactory factory) {
SPARCV9InstructionFactory v9factory = (SPARCV9InstructionFactory) factory;
Instruction instr = null;
// "i" bit has to be zero. see page 169 - A.21 Flush Register Windows.
if (isIBitSet(instruction)) {
instr = v9factory.newIllegalInstruction(instruction);
} else {
instr = v9factory.newV9FlushwInstruction();
}
return instr;
}
}
|
